This file contains information about GCC releases which has been
generated automatically from the online release notes.  This file
covers releases of GCC (and the former EGCS project) since EGCS 1.0,
on the line of development that led to GCC 3; for information on GCC
2.8.1 and older releases of GCC 2, see ONEWS.

======================================================================
http://gcc.gnu.org/gcc-3.0/gcc-3.0.html

   June 18, 2001: GCC 3.0 has been released.
   August 20, 2001: GCC 3.0.1 has been released.
   October 25, 2001: GCC 3.0.2 has been released.
   December 20, 2001: GCC 3.0.3 has been released.
   February 20, 2002: GCC 3.0.4 has been released.
     _________________________________________________________________

                                 GCC 3.0.4

   February 20, 2001

   The  [1]GNU project and the GCC developers are pleased to announce the
   release  of  GCC  3.0.4,  which  is  a bug-fix release for the GCC 3.0
   series.

   GCC  used  to  stand  for  the  GNU C Compiler, but since the compiler
   supports  several  other languages aside from C, it now stands for the
   GNU Compiler Collection.

   GCC  3.0.x  has  several new optimizations, new targets, new languages
   and  many  other  new features, relative to GCC 2.95.x. See the [2]new
   features page for a more complete list.

   A  list  of [3]successful builds is updated as new information becomes
   available.

   The  GCC  developers would like to thank the numerous people that have
   contributed  new  features,  test  results, bugfixes, etc to GCC. This
   [4]amazing group of volunteers is what makes GCC successful.

   And  finally,  we  can't  in  good  conscience  fail  to  mention some
   [5]caveats to using GCC 3.0.x.

   For  additional  information  about  GCC  please  refer  to the [6]GCC
   project web site or contact the [7]GCC development mailing list.

   To obtain GCC please use [8]our mirror sites, one of the [9]GNU mirror
   sites, or [10]our CVS server.
     _________________________________________________________________

   Please  send FSF & GNU inquiries & questions to [11]gnu@gnu.org. There
   are also [12]other ways to contact the FSF.

   These pages are maintained by [13]The GCC team.

   Please  send comments on these web pages and GCC to [14]gcc@gnu.org or
   [15]gcc@gcc.gnu.org, send other questions to [16]gnu@gnu.org.

   Copyright  (C) Free Software Foundation, Inc., 59 Temple Place - Suite
   330, Boston, MA 02111, USA.

   Verbatim  copying and distribution of this entire article is permitted
   in any medium, provided this notice is preserved.

   Last modified 2002-02-20.

References

   1. http://www.gnu.org/
   2. http://gcc.gnu.org/gcc-3.0/features.html
   3. http://gcc.gnu.org/gcc-3.0/buildstat.html
   4. http://gcc.gnu.org/onlinedocs/gcc/Contributors.html
   5. http://gcc.gnu.org/gcc-3.0/caveats.html
   6. http://gcc.gnu.org/index.html
   7. mailto:gcc@gcc.gnu.org
   8. http://gcc.gnu.org/mirrors.html
   9. http://www.gnu.org/order/ftp.html
  10. http://gcc.gnu.org/cvs.html
  11. mailto:gnu@gnu.org
  12. http://www.gnu.org/home.html#ContactInfo
  13. http://gcc.gnu.org/about.html
  14. mailto:gcc@gnu.org
  15. mailto:gcc@gcc.gnu.org
  16. mailto:gnu@gnu.org
======================================================================
http://gcc.gnu.org/gcc-3.0/features.html

                            GCC 3.0 New Features

     * General Optimizer Improvements:
          + [1]Basic block reordering pass.
          + New   if-conversion   pass   with   support  for  conditional
            (predicated) execution.
          + New tail call and sibling call elimination optimizations.
          + New register renaming pass.
          + New   (experimental)   [2]static   single   assignment  (SSA)
            representation support.
          + New  dead-code  elimination  pass  implemented  using the SSA
            representation.
          + [3]Global null pointer test elimination.
          + [4]Global code hoisting/unification.
          + More builtins and optimizations for stdio.h, string.h and old
            BSD functions, as well as for ISO C99 functions.
          + New  builtin  __builtin_expect for giving hints to the branch
            predictor.
     * New Languages and Language specific improvements:
          + The  GNU  Compiler  for  the  Java(TM)  language (GCJ) is now
            integrated  and  supported,  including  the  run-time library
            containing  most  common  non-GUI  Java  classes,  a bytecode
            interpreter,  and  the  Boehm conservative garbage collector.
            Many  bugs  have  been  fixed. GCJ can compile Java source or
            Java bytecodes to either native code or Java class files, and
            supports native methods written in either the standard JNI or
            the more efficient and convenient CNI.
          + Here  is  a  [5]partial  list  of  C++ improvements, both new
            features and those no longer supported.
          + New  C++  ABI.  On  the  IA-64  platform  GCC  is  capable of
            inter-operating with other IA-64 compilers.
          + The new ABI also significantly reduces the size of symbol and
            debug information.
          + New  [6]C++  support  library  and many C++ bug fixes, vastly
            improving our conformance to the ISO C++ standard.
          + New [7]inliner for C++.
          + Rewritten  C  preprocessor,  integrated  into  the C, C++ and
            Objective  C compilers, with very many improvements including
            ISO C99 support and [8]improvements to dependency generation.
          + Support for more [9]ISO C99 features.
          + Many  improvements  to  support  for checking calls to format
            functions such as printf and scanf, including support for ISO
            C99   format   features,  extensions  from  the  Single  Unix
            Specification  and  GNU libc 2.2, checking of strfmon formats
            and features to assist in auditing for format string security
            bugs.
          + New  warnings  for  C  code that may have undefined semantics
            because  of  violations  of  sequence  point  rules  in the C
            standard  (such as a = a++;, a[n] = b[n++]; and a[i++] = i;),
            included in -Wall.
          + Additional warning option -Wfloat-equal.
          + Improvements to -Wtraditional.
          + Fortran   improvements   are   listed   in   [10]the  Fortran
            documentation.
     * New Targets and Target Specific Improvements:
          + New x86 back-end, generating much improved code.
          + Support for a generic i386-elf target contributed.
          + New option to emit x86 assembly code using Intel style syntax
            (-mintel-syntax).
          + HPUX 11 support contributed.
          + Improved   PowerPC   code   generation,  including  scheduled
            prologue and epilogue.
          + Port of GCC to Intel's IA-64 processor contributed.
          + Port of GCC to Motorola's MCore 210 and 340 contributed.
          + New   unified   back-end   for   Arm,   Thumb  and  StrongArm
            contributed.
          + Port of GCC to Intel's XScale processor contributed.
          + Port of GCC to Atmel's AVR microcontrollers contributed.
          + Port of GCC to Mitsubishi's D30V processor contributed.
          + Port  of  GCC to Matsushita's AM33 processor (a member of the
            MN10300 processor family) contributed.
          + Port of GCC to Fujitsu's FR30 processor contributed.
          + Port  of  GCC  to  Motorola's  68HC11  and  68HC12 processors
            contributed.
          + Port of GCC to Sun's picoJava processor core contributed.
     * Documentation improvements:
          + Substantially rewritten and improved C preprocessor manual.
          + Many improvements to other documentation.
          + Manpages   for   gcc,   cpp   and   gcov  are  now  generated
            automatically from the master Texinfo manual, eliminating the
            problem  of  manpages  being  out  of  date.  (The  generated
            manpages  are  only  extracts  from the full manual, which is
            provided  in  Texinfo  form,  from  which  info,  HTML, other
            formats and a printed manual can be generated.)
          + Generated  info  files  are  included in the release tarballs
            alongside  their  Texinfo  sources, avoiding problems on some
            platforms   with   building  makeinfo  as  part  of  the  GCC
            distribution.
     * Other significant improvements:
          + Garbage  collection  used internally by the compiler for most
            memory allocation instead of obstacks.
          + Lengauer  and  Tarjan algorithm used for computing dominators
            in  the  CFG.  This algorithm can be significantly faster and
            more space efficient than our older algorithm.
          + gccbug script provided to assist in submitting bug reports to
            the  GCC GNATS bug tracking database. (Bug reports previously
            submitted  directly  to  the  GCC mailing lists, for which no
            GNATS  bug  tracking  number  has  been  received,  should be
            submitted  again to the bug tracking database using gccbug if
            you can reproduce the problem with GCC 3.0.)
          + The  internal libgcc library is [11]built as a shared library
            on systems that support it.
          + Extensive  testsuite  included with GCC, with many new tests.
            In  addition to tests for GCC bugs that have been fixed, many
            tests   have  been  added  for  language  features,  compiler
            warnings and builtin functions.
          + Additional  language-independent  warning  options  -Wpacked,
            -Wpadded, -Wunreachable-code and -Wdisabled-optimization.
          + Target-independent  options  -falign-functions, -falign-loops
            and -falign-jumps.
     * Plus  a  great many bugfixes and almost all the [12]features found
       in GCC 2.95.
     * Additional changes in GCC 3.0.1
          + C++ fixes for incorrect code-generation.
          + Improved   cross-compiling   support  for  the  C++  standard
            library.
          + Fixes  for  some  embedded targets that worked in GCC 2.95.3,
            but not in GCC 3.0.
          + Fixes for various exception-handling bugs.
          + A port to the S/390 architecture.
     * Additional changes in GCC 3.0.2
          + Fixes for bad code generation during loop unrolling.
          + Fixes   for   bad   code   generation  by  the  sibling  call
            optimization.
          + Minor improvements to x86 code generation.
          + Implemenation  of  function  descriptors  in  C++ vtables for
            IA64.
          + Numerous minor bug-fixes.
     * Additional changes in GCC 3.0.3
          + A fix to correct an accidental change to the PowerPC ABI.
          + Fixes for bad code generation on a variety of architectures.
          + Improvements  to  the debugging information generated for C++
            classes.
          + Fixes for bad code generation in C++.
          + A fix to avoid crashes in the C++ demangler.
          + A fix to the C++ standard library to avoid buffer overflows.
          + Miscellaneous improvements for a variety of architectures.
     * Additional changes in GCC 3.0.4
          + GCC  3.0  now  supports  newer  versions  of  the  [13]NetBSD
            operating  system,  which  use the ELF object file format, on
            x86 processors.
          + Correct  debugging  information  is  generated from functions
            that have lines from multiple files (e.g. yacc output).
          + A   fix   for   whitespace   handling   in  the  -traditional
            preprocessor, which can affect Fortran.
          + Fixes to the exception handling runtime.
          + More fixes for bad code generation in C++.
          + A fix for shared library generation under AIX 4.3.
          + Documentation updates.
          + Port of GCC to Tensilica's Xtensa processor contributed.
          + A  fix  for  compiling  the PPC Linux kernel (FAT fs wouldn't
            link).
     _________________________________________________________________

   Please  send FSF & GNU inquiries & questions to [14]gnu@gnu.org. There
   are also [15]other ways to contact the FSF.

   These pages are maintained by [16]The GCC team.

   Please  send comments on these web pages and GCC to [17]gcc@gnu.org or
   [18]gcc@gcc.gnu.org, send other questions to [19]gnu@gnu.org.

   Copyright  (C) Free Software Foundation, Inc., 59 Temple Place - Suite
   330, Boston, MA 02111, USA.

   Verbatim  copying and distribution of this entire article is permitted
   in any medium, provided this notice is preserved.

   Last modified 2002-02-03.

References

   1. http://gcc.gnu.org/news/reorder.html
   2. http://gcc.gnu.org/news/ssa.html
   3. http://gcc.gnu.org/news/null.html
   4. http://gcc.gnu.org/news/unify.html
   5. http://gcc.gnu.org/gcc-3.0/c++features.html
   6. http://gcc.gnu.org/libstdc++/
   7. http://gcc.gnu.org/news/inlining.html
   8. http://gcc.gnu.org/news/dependencies.html
   9. http://gcc.gnu.org/gcc-3.0/c99status.html
  10. http://gcc.gnu.org/onlinedocs/g77_news.html
  11. http://gcc.gnu.org/gcc-3.0/libgcc.html
  12. http://gcc.gnu.org/gcc-2.95/features.html
  13. http://www.netbsd.org/
  14. mailto:gnu@gnu.org
  15. http://www.gnu.org/home.html#ContactInfo
  16. http://gcc.gnu.org/about.html
  17. mailto:gcc@gnu.org
  18. mailto:gcc@gcc.gnu.org
  19. mailto:gnu@gnu.org
======================================================================
http://gcc.gnu.org/gcc-3.0/caveats.html

                              GCC 3.0 Caveats

     * Enumerations   are  now  properly  promoted  to  int  in  function
       parameters  and  function  returns.  Normally  this  change is not
       visible, but when using -fshort-enums this is an ABI change.
     * The undocumented extension that allowed C programs to have a label
       at  the end of a compound statement has been deprecated and may be
       removed  in a future version. Programs that now generate a warning
       about  this  may  be  fixed  by  adding a null statement (a single
       semicolon) after the label.
     * The  poorly  documented extension that allowed string constants in
       C,  C++  and  Objective  C  to contain unescaped newlines has been
       deprecated  and may be removed in a future version. Programs using
       this  extension may be fixed in several ways: the bare newline may
       be replaced by \n, or preceded by \n\, or string concatenation may
       be  used with the bare newline preceded by \n" and " placed at the
       start of the next line.
     * The Chill compiler is not included in GCC 3.0, because of the lack
       of a volunteer to convert it to use garbage collection.
     * Certain  non-standard  iostream  methods  from earlier versions of
       libstdc++  are not included in libstdc++ v3, i.e. filebuf::attach,
       ostream::form,  and  istream::gets. Here are workaround hints for:
       [1]ostream::form, [2]filebuf::attach.
     * The  new  C++  ABI  is  not  yet fully supported by current (as of
       2001-07-01)  releases  and  development  versions  of  GDB, or any
       earlier  versions.  There is a problem setting breakpoints by line
       number,  and  other related issues that have been fixed in GCC 3.0
       but not yet handled in GDB:
       [3]http://gcc.gnu.org/ml/gcc-bugs/2001-06/msg00421.html
     _________________________________________________________________

   Please  send  FSF & GNU inquiries & questions to [4]gnu@gnu.org. There
   are also [5]other ways to contact the FSF.

   These pages are maintained by [6]The GCC team.

   Please  send  comments on these web pages and GCC to [7]gcc@gnu.org or
   [8]gcc@gcc.gnu.org, send other questions to [9]gnu@gnu.org.

   Copyright  (C) Free Software Foundation, Inc., 59 Temple Place - Suite
   330, Boston, MA 02111, USA.

   Verbatim  copying and distribution of this entire article is permitted
   in any medium, provided this notice is preserved.

   Last modified 2002-01-20.

References

   1. http://gcc.gnu.org/onlinedocs/libstdc++/21_strings/howto.html
   2. http://gcc.gnu.org/onlinedocs/libstdc++/ext/howto.html
   3. http://gcc.gnu.org/ml/gcc-bugs/2001-06/msg00421.html
   4. mailto:gnu@gnu.org
   5. http://www.gnu.org/home.html#ContactInfo
   6. http://gcc.gnu.org/about.html
   7. mailto:gcc@gnu.org
   8. mailto:gcc@gcc.gnu.org
   9. mailto:gnu@gnu.org
======================================================================
http://gcc.gnu.org/gcc-2.95/index.html

                                  GCC 2.95

   July 31, 1999: The GNU project and the GCC/EGCS developers are pleased
   to announce the release of GCC version 2.95. This is the first release
   of GCC since the April 1999 GCC/EGCS reunification and includes nearly
   a year's worth of new development and bugfixes.

   August 19, 1999: GCC version 2.95.1 has been released.

   October 27, 1999: GCC version 2.95.2 has been released.

   March 16, 2001: GCC version 2.95.3 has been released.

   GCC  used  to  stand  for  the  GNU C Compiler, but since the compiler
   supports  several  other languages aside from C, it now stands for the
   GNU Compiler Collection.

   The   whole  suite  has  been  extensively  [1]regression  tested  and
   [2]package  tested.  It should be reliable and suitable for widespread
   use.

   The compiler has several new optimizations, new targets, new languages
   and  other  new  features.  See  the  [3]new  features page for a more
   complete list of new features found in the GCC 2.95 releases.

   The  sources  include  installation  instructions  in  both  HTML  and
   plaintext forms in the install directory in the distribution. However,
   the  most  up  to  date [4]installation instructions and [5]build/test
   status  are  on  the  web  pages.  We  will  update those pages as new
   information becomes available.

   The  GCC  developers would like to thank the numerous people that have
   contributed  new  features,  test  results, bugfixes, etc to GCC. This
   [6]amazing group of volunteers is what makes GCC successful.

   And  finally,  we  can't  in  good  conscience  fail  to  mention some
   [7]caveats to using GCC 2.95.

   Download GCC 2.95 from the [8]GNU FTP server (ftp://ftp.gnu.org)
   [9]Find a GNU mirror site
   [10]Find a GCC mirror site

   For  additional  information  about GCC please see the [11]GCC project
   web server or contact the [12]GCC development mailing list.
     _________________________________________________________________

   Please  send FSF & GNU inquiries & questions to [13]gnu@gnu.org. There
   are also [14]other ways to contact the FSF.

   These pages are maintained by [15]The GCC team.

   Please  send comments on these web pages and GCC to [16]gcc@gnu.org or
   [17]gcc@gcc.gnu.org, send other questions to [18]gnu@gnu.org.

   Copyright  (C) Free Software Foundation, Inc., 59 Temple Place - Suite
   330, Boston, MA 02111, USA.

   Verbatim  copying and distribution of this entire article is permitted
   in any medium, provided this notice is preserved.

   Last modified 2002-01-25.

References

   1. http://gcc.gnu.org/gcc-2.95/regress.html
   2. http://gcc.gnu.org/gcc-2.95/othertest.html
   3. http://gcc.gnu.org/gcc-2.95/features.html
   4. http://gcc.gnu.org/install/
   5. http://gcc.gnu.org/gcc-2.95/buildstat.html
   6. http://gcc.gnu.org/onlinedocs/gcc/Contributors.html
   7. http://gcc.gnu.org/gcc-2.95/caveats.html
   8. ftp://ftp.gnu.org/pub/gnu/gcc/
   9. http://www.gnu.org/order/ftp.html
  10. http://gcc.gnu.org/mirrors.html
  11. http://gcc.gnu.org/index.html
  12. mailto:gcc@gcc.gnu.org
  13. mailto:gnu@gnu.org
  14. http://www.gnu.org/home.html#ContactInfo
  15. http://gcc.gnu.org/about.html
  16. mailto:gcc@gnu.org
  17. mailto:gcc@gcc.gnu.org
  18. mailto:gnu@gnu.org
======================================================================
http://gcc.gnu.org/gcc-2.95/features.html

                           GCC 2.95 New Features

     * General Optimizer Improvements:
          + [1]Localized  register  spilling  to  improve  speed and code
            density especially on small register class machines.
          + [2]Global CSE using lazy code motion algorithms.
          + [3]Improved global constant/copy propagation.
          + [4]Improved control flow graph analysis and manipulation.
          + [5]Local dead store elimination.
          + [6]Memory Load hoisting/store sinking in loops.
          + [7]Type based alias analysis is enabled by default. Note this
            feature will expose bugs in the Linux kernel. Please refer to
            the [8]FAQ for additional information on this issue.
          + Major revamp of GIV detection, combination and simplification
            to improve loop performance.
          + Major improvements to register allocation and reloading.
     * New Languages and Language specific improvements
          + [9]Many C++ improvements.
          + [10]Many Fortran improvements.
          + [11]Java  front-end  has been integrated. [12]runtime library
            is available separately.
          + [13]ISO C99 support
          + [14]Chill front-end and runtime has been integrated.
          + Boehm garbage collector support in libobjc.
          + More  support  for  various  pragmas  which  appear in vendor
            include files
     * New Targets and Target Specific Improvements
          + [15]Sparc backend rewrite.
          + -mschedule=8000   will   optimize   code   for  PA8000  class
            processors;   -mpa-risc-2-0  will  generate  code  for  PA2.0
            processors
          + Various   micro-optimizations   for   the   ia32   port.   K6
            optimizations
          + Compiler  will  attempt  to align doubles in the stack on the
            ia32 port
          + Alpha EV6 support
          + PowerPC 750
          + RS6000/PowerPC:   -mcpu=401   was   added  as  an  alias  for
            -mcpu=403.   -mcpu=e603e  was  added  to  do  -mcpu=603e  and
            -msoft-float.
          + c3x, c4x
          + HyperSparc
          + SparcLite86x
          + sh4
          + Support  for  new  systems  (OpenBSD, FreeBSD, UWIN, Interix,
            arm-linux)
          + vxWorks targets include support for vxWorks threads
          + StrongARM   110   and  ARM9  support  added.  ARM  Scheduling
            parameters rewritten.
          + Various  changes  to the MIPS port to avoid assembler macros,
            which in turn improves performance
          + Various performance improvements to the i960 port.
          + Major rewrite of ns32k port
     * Other significant improvements
          + [16]Ability to dump cfg information and display it using vcg.
          + The  new  faster  scheme  for  fixing  vendor header files is
            enabled by default.
          + Experimental internationalization support.
          + multibyte character support
          + Some compile-time speedups for pathological problems
          + Better support for complex types
     * Plus the usual mountain of bugfixes
     * Core  compiler is based on the gcc2 development tree from Sept 30,
       1998, so we have all of the [17]features found in GCC 2.8.

Additional Changes in GCC 2.95.1

     * Generic bugfixes and improvements
          + Various documentation fixes related to the GCC/EGCS merger.
          + Fix  memory  management  bug  which  could  lead  to spurious
            aborts, core dumps or random parsing errors in the compiler.
          + Fix  a  couple  bugs  in  the  dwarf1 and dwarf2 debug record
            support.
          + Fix infinite loop in the CSE optimizer.
          + Avoid undefined behavior in compiler FP emulation code
          + Fix  install  problem  when  prefix is overridden on the make
            install command.
          + Fix  problem  with  unwanted installation of assert.h on some
            systems.
          + Fix problem with finding the wrong assembler in a single tree
            build.
          + Avoid  increasing  the  known alignment of a register that is
            already known to be a pointer.
     * Platform specific bugfixes and improvements
          + Codegen bugfix for prologue/epilogue for cpu32 target.
          + Fix long long code generation bug for the Coldfire target.
          + Fix various aborts in the SH compiler.
          + Fix bugs in libgcc support library for the SH.
          + Fix alpha ev6 code generation bug.
          + Fix  problems with EXIT_SUCCESS/EXIT_FAILURE redefinitions on
            AIX platforms.
          + Fix -fpic code generation bug for rs6000/ppc svr4 targets.
          + Fix  varargs/stdarg  code  generation bug for rs6000/ppc svr4
            targets.
          + Fix weak symbol handling for rs6000/ppc svr4 targets.
          + Fix  various  problems  with  64bit  code  generation for the
            rs6000/ppc port.
          + Fix  codegen bug which caused tetex to be mis-compiled on the
            x86.
          + Fix compiler abort in new cfg code exposed by x86 port.
          + Fix  out  of  range  array  reference  in  code  convert flat
            registers to the x87 stacked FP register file.
          + Fix minor vxworks configuration bug.
          + Fix return type of bsearch for SunOS 4.x.
     * Language & Runtime specific fixes.
          + The  G++  signature extension has been deprecated. It will be
            removed  in  the next major release of G++. Use of signatures
            will result in a warning from the compiler.
          + Several bugs relating to templates and namespaces were fixed.
          + A bug that caused crashes when combining templates with -g on
            DWARF1 platforms was fixed.
          + Pointers-to-members,    virtual   functions,   and   multiple
            inheritance should now work together correctly.
          + Some  code-generation  bugs  relating  to function try blocks
            were fixed.
          + G++  is  a  little  bit  more  lenient  with  certain archaic
            constructs than in GCC 2.95.
          + Fix to prevent shared library version #s from bring truncated
            to 1 digit
          + Fix missing std:: in the libstdc++ library.
          + Fix stream locking problems in libio.
          + Fix problem in java compiler driver.

Additional Changes in GCC 2.95.2

   The  -fstrict-aliasing is not enabled by default for GCC 2.95.2. While
   the  optimizations  performed by -fstrict-aliasing are valid according
   to  the  C  and  C++  standards,  the  optimization  have  caused some
   problems, particularly with old non-conforming code.

   The  GCC  developers  are  experimenting with ways to warn users about
   code  which  violates  the C/C++ standards, but those warnings are not
   ready  for  widespread  use  at  this time. Rather than wait for those
   warnings  the  GCC developers have chosen to disable -fstrict-aliasing
   by default for the GCC 2.95.2 release.

   We  strongly  encourage developers to find and fix code which violates
   the  C/C++ standards as -fstrict-aliasing may be enabled by default in
   future  releases.  Use the option -fstrict-aliasing to re-enable these
   optimizations.
     * Generic bugfixes and improvements
          + Fix  incorrectly  optimized memory reference in global common
            subexpression elimination (GCSE) optimization pass.
          + Fix  code  generation  bug  in  regmove.c  in  which it could
            incorrectly change a "const" value.
          + Fix  bug  in  optimization of conditionals involving volatile
            memory references.
          + Avoid over-allocation of stack space for some procedures.
          + Fixed bug in the compiler which caused incorrect optimization
            of  an  obscure  series  of  bit  manipulations,  shifts  and
            arithmetic.
          + Fixed  register  allocator  bug  which  caused  teTeX  to  be
            mis-compiled on Sparc targets.
          + Avoid  incorrect  optimization  of degenerate case statements
            for certain targets such as the ARM.
          + Fix out of range memory reference in the jump optimizer.
          + Avoid dereferencing null pointer in fix-header.
          + Fix  test for GCC specific features so that it is possible to
            bootstrap with gcc-2.6.2 and older versions of GCC.
          + Fix  typo  in  scheduler which could potentially cause out of
            range memory accesses.
          + Avoid incorrect loop reversal which caused incorrect code for
            certain loops on PowerPC targets.
          + Avoid  incorrect optimization of switch statements on certain
            targets (for example the ARM).
     * Platform specific bugfixes and improvements
          + Work  around bug in Sun V5.0 compilers which caused bootstrap
            comparison failures on Sparc targets.
          + Fix Sparc backend bug which caused aborts in final.c.
          + Fix sparc-hal-solaris2* configuration fragments.
          + Fix bug in sparc block profiling.
          + Fix obscure code generation bug for the PARISC targets.
          + Define __STDC_EXT__ for HPUX configurations.
          + Various POWERPC64 code generation bugfixes.
          + Fix abort for PPC targets using ELF (ex GNU/Linux).
          + Fix collect2 problems for AIX targets.
          + Correct handling of .file directive for PPC targets.
          + Fix bug in fix_trunc x86 patterns.
          + Fix x86 port to correctly pop the FP stack for functions that
            return structures in memory.
          + Fix minor bug in strlen x86 pattern.
          + Use   stabs  debugging  instead  of  dwarf1  for  x86-solaris
            targets.
          + Fix  template repository code to handle leading underscore in
            mangled names.
          + Fix weak/weak alias support for OpenBSD.
          + GNU/Linux for the ARM has C++ compatible include files.
     * Language & Runtime specific fixes.
          + Fix  handling  of  constructor  attribute  in the C front-end
            which  caused  problems building the Chill runtime library on
            some targets.
          + Fix minor problem merging type qualifiers in the C front-end.
          + Fix aliasing bug for pointers and references (C/C++).
          + Fix    incorrect    "non-constant   initializer   bug"   when
            -traditional or -fwritable-strings is enabled.
          + Fix build error for Chill front-end on SunOS.
          + Do  not  complain  about  duplicate instantiations when using
            -frepo (C++).
          + Fix  array  bounds  handling  in  C++  front-end which caused
            problems   with   dwarf   debugging   information   in   some
            circumstances.
          + Fix minor namespace problem.
          + Fix problem linking java programs.

Additional Changes in GCC 2.95.3

     * Generic bugfixes and improvements
          + Fix  numerous  problems that caused incorrect optimization in
            the register reloading code.
          + Fix  numerous  problems that caused incorrect optimization in
            the loop optimizer.
          + Fix  aborts  in the functions build_insn_chain and scan_loops
            under some circumstances.
          + Fix an alias analysis bug.
          + Fix an infinite compilation bug in the combiner.
          + A few problems with complex number support have been fixed.
          + It  is  no longer possible for gcc to act as a fork bomb when
            installed incorrectly.
          + The -fpack-struct option should be recognized now.
          + Fixed a bug that caused incorrect code to be generated due to
            a lost stack adjustment.
     * Platform specific bugfixes and improvements
          + Support building ARM toolchains hosted on Windows.
          + Fix attribute calculations in ARM toolchains.
          + arm-linux support has been improved.
          + Fix a PIC failure on sparc targets.
          + On  ix86  targets,  the  regparm  attribute  should  now work
            reliably.
          + Several updates for the h8300 port.
          + Fix problem building libio with glibc 2.2.
     _________________________________________________________________

   Please  send FSF & GNU inquiries & questions to [18]gnu@gnu.org. There
   are also [19]other ways to contact the FSF.

   These pages are maintained by [20]The GCC team.

   Please  send comments on these web pages and GCC to [21]gcc@gnu.org or
   [22]gcc@gcc.gnu.org, send other questions to [23]gnu@gnu.org.

   Copyright  (C) Free Software Foundation, Inc., 59 Temple Place - Suite
   330, Boston, MA 02111, USA.

   Verbatim  copying and distribution of this entire article is permitted
   in any medium, provided this notice is preserved.

   Last modified 2002-01-26.

References

   1. http://gcc.gnu.org/news/spill.html
   2. http://gcc.gnu.org/news/lcm.html
   3. http://gcc.gnu.org/news/cprop.html
   4. http://gcc.gnu.org/news/cfg.html
   5. http://gcc.gnu.org/news/dse.html
   6. http://gcc.gnu.org/news/hoist.html
   7. http://gcc.gnu.org/news/alias.html
   8. http://gcc.gnu.org/fom_serv/cache/24.html
   9. http://gcc.gnu.org/gcc-2.95/c++features.html
  10. http://gcc.gnu.org/onlinedocs/g77_news.html
  11. http://gcc.gnu.org/java/gcj-announce.txt
  12. http://gcc.gnu.org/news/javaannounce.html
  13. http://gcc.gnu.org/c99status.html
  14. http://gcc.gnu.org/news/chill.html
  15. http://gcc.gnu.org/news/sparc.html
  16. http://gcc.gnu.org/news/egcs-vcg.html
  17. http://gcc.gnu.org/egcs-1.0/features-2.8.html
  18. mailto:gnu@gnu.org
  19. http://www.gnu.org/home.html#ContactInfo
  20. http://gcc.gnu.org/about.html
  21. mailto:gcc@gnu.org
  22. mailto:gcc@gcc.gnu.org
  23. mailto:gnu@gnu.org
======================================================================
http://gcc.gnu.org/gcc-2.95/caveats.html

                              GCC 2.95 Caveats

     * GCC  2.95  will issue an error for invalid asm statements that had
       been  silently  accepted by earlier versions of the compiler. This
       is  particularly  noticeable  when compiling older versions of the
       Linux  kernel  (2.0.xx).  Please  refer  to  the  [1]FAQ  for more
       information on this issue.
     * GCC  2.95  implements  type  based  alias analysis to disambiguate
       memory  references.  Some  programs, particularly the Linux kernel
       violate  ANSI/ISO  aliasing  rules  and  therefore may not operate
       correctly  when compiled with GCC 2.95. Please refer to the [2]FAQ
       for more information on this issue.
     * GCC  2.95 has a known bug in its handling of complex variables for
       64bit  targets. Instead of silently generating incorrect code, GCC
       2.95  will  issue  a fatal error for situations it can not handle.
       This primarily affects the Fortran community as Fortran makes more
       use of complex variables than C or C++.
     * GCC  2.95  has  an  integrated  libstdc++,  but  does  not have an
       integrated  libg++.  Furthermore old libg++ releases will not work
       with  GCC  2.95. You can retrieve a recent copy of libg++ from the
       [3]GCC ftp server.
       Note most C++ programs only need libstdc++.
     * Exception   handling   may   not   work   with  shared  libraries,
       particularly  on  alphas,  hppas,  rs6000/powerpc  and  mips based
       platforms.  Exception  handling  is known to work on x86 GNU/Linux
       platforms with shared libraries.
     * In  general, GCC 2.95 is more rigorous about rejecting invalid C++
       code or deprecated C++ constructs than G++ 2.7, G++ 2.8, EGCS 1.0,
       or  EGCS  1.1.  As  a  result  it may be necessary to fix C++ code
       before it will compile with GCC 2.95.
     * G++  is  also  converting toward the ISO C++ standard; as a result
       code  which  was  previously  valid  (and  thus  accepted by other
       compilers  and  older  versions of g++) may no longer be accepted.
       The  flag  -fpermissive  may  allow  some  non-conforming  code to
       compile with GCC 2.95.
     * GCC  2.95  compiled  C++  code  is not binary compatible with EGCS
       1.1.x, EGCS 1.0.x or GCC 2.8.x.
     * GCC  2.95  does  not  have changes from the GCC 2.8 tree that were
       made between Sept 30, 1998 and April 30, 1999 (the official end of
       the  GCC  2.8  project).  Future GCC releases will include all the
       changes from the defunct GCC 2.8 sources.
     _________________________________________________________________

   Please  send  FSF & GNU inquiries & questions to [4]gnu@gnu.org. There
   are also [5]other ways to contact the FSF.

   These pages are maintained by [6]The GCC team.

   Please  send  comments on these web pages and GCC to [7]gcc@gnu.org or
   [8]gcc@gcc.gnu.org, send other questions to [9]gnu@gnu.org.

   Copyright  (C) Free Software Foundation, Inc., 59 Temple Place - Suite
   330, Boston, MA 02111, USA.

   Verbatim  copying and distribution of this entire article is permitted
   in any medium, provided this notice is preserved.

   Last modified 2002-01-26.

References

   1. http://gcc.gnu.org/faq.html#asmclobber
   2. http://gcc.gnu.org/fom_serv/cache/24.html
   3. ftp://gcc.gnu.org/pub/gcc/infrastructure/libg++-2.8.1.3.tar.gz
   4. mailto:gnu@gnu.org
   5. http://www.gnu.org/home.html#ContactInfo
   6. http://gcc.gnu.org/about.html
   7. mailto:gcc@gnu.org
   8. mailto:gcc@gcc.gnu.org
   9. mailto:gnu@gnu.org
======================================================================
http://gcc.gnu.org/egcs-1.1/index.html

                                  EGCS 1.1

   September 3, 1998: We are pleased to announce the release of EGCS 1.1.
   December  1,  1998:  We  are  pleased  to announce the release of EGCS
   1.1.1.
   March 15, 1999: We are pleased to announce the release of EGCS 1.1.2.

   EGCS  is a free software project to further the development of the GNU
   compilers using an open development environment.

   EGCS  1.1  is  a major new release of the EGCS compiler system. It has
   been  [1]extensively  tested and is believed to be stable and suitable
   for widespread use.

   EGCS  1.1  is  based  on  an  June  6,  1998  snapshot  of the GCC 2.8
   development  sources; it contains all of the new features found in GCC
   2.8.1 as well as all new development from GCC up to June 6, 1998.

   EGCS 1.1 also contains many improvements and features not found in GCC
   or in older versions of EGCS:
     * Global  common  subexpression elimination and global constant/copy
       propagation (aka [2]gcse)
     * Ongoing improvements to the [3]alias analysis support to allow for
       better optimizations throughout the compiler.
     * Vastly   improved  [4]C++  compiler  and  integrated  C++  runtime
       libraries.
     * Fixes for the /tmp symlink race security problems.
     * New targets including mips16, arm-thumb and 64 bit PowerPC.
     * Improvements  to  GNU  Fortran  (g77) compiler and runtime library
       made since g77 version 0.5.23.

   See  the [5]new features page for a more complete list of new features
   found in EGCS 1.1 releases.

   EGCS  1.1.1  is a minor update to fix several serious problems in EGCS
   1.1:
     * General improvements and fixes
          + Avoid some stack overflows when compiling large functions.
          + Avoid incorrect loop invariant code motions.
          + Fix some core dumps on Linux kernel code.
          + Bring back the imake -Di386 and friends fix from EGCS 1.0.2.
          + Fix code generation problem in gcse.
          + Various documentation related fixes.
     * g++/libstdc++ improvements and fixes
          + MT safe EH fix for setjmp/longjmp based exception handling.
          + Fix a few bad interactions between optimization and exception
            handling.
          + Fixes for demangling of template names starting with "__".
          + Fix  a  bug  that would fail to run destructors in some cases
            with -O2.
          + Fix 'new' of classes with virtual bases.
          + Fix crash building Qt on the Alpha.
          + Fix failure compiling WIFEXITED macro on GNU/Linux.
          + Fix some -frepo failures.
     * g77 and libf2c improvements and fixes
          + Various documentation fixes.
          + Avoid compiler crash on RAND intrinsic.
          + Fix minor bugs in makefiles exposed by BSD make programs.
          + Define  _XOPEN_SOURCE  for  libI77  build  to avoid potential
            problems on some 64-bit systems.
          + Fix problem with implicit endfile on rewind.
          + Fix spurious recursive I/O errors.
     * platform specific improvements and fixes
          + Match all versions of UnixWare7.
          + Do not assume x86 SVR4 or UnixWare targets can handle stabs.
          + Fix PPC/RS6000 LEGITIMIZE_ADDRESS macro and bug in conversion
            from unsigned ints to double precision floats.
          + Fix ARM ABI issue with NetBSD.
          + Fix a few arm code generation bugs.
          + Fixincludes  will fix additional broken SCO OpenServer header
            files.
          + Fix  a m68k backend bug which caused invalid offsets in reg+d
            addresses.
          + Fix problems with 64bit AIX 4.3 support.
          + Fix  handling  of  long longs for varargs/stdarg functions on
            the ppc.
          + Minor fixes to CPP predefines for Windows.
          + Fix  code generation problems with gpr<->fpr copies for 64bit
            ppc.
          + Fix a few coldfire code generation bugs.
          + Fix some more header file problems on SunOS 4.x.
          + Fix assert.h handling for RTEMS.
          + Fix Windows handling of TREE_SYMBOL_REFERENCED.
          + Fix x86 compiler abort in reg-stack pass.
          + Fix cygwin/windows problem with section attributes.
          + Fix  Alpha  code  generation  problem  exposed  by  SMP Linux
            kernels.
          + Fix typo in m68k 32->64bit integer conversion.
          + Make  sure  target libraries build with -fPIC for PPC & Alpha
            targets.

   EGCS  1.1.2  is a minor update to fix several serious problems in EGCS
   1.1.1:
     * General improvements and fixes
          + Fix  bug  in  loop  optimizer  which  caused  the  SPARC (and
            potentially other) ports to segfault.
          + Fix infinite recursion in alias analysis and combiner code.
          + Fix bug in regclass preferencing.
          + Fix incorrect loop reversal which caused incorrect code to be
            generated for several targets.
          + Fix return value for builtin memcpy.
          + Reduce compile time for certain loops which exposed quadratic
            behavior in the loop optimizer.
          + Fix  bug  which caused volatile memory to be written multiple
            times when only one write was needed/desired.
          + Fix compiler abort in caller-save.c
          + Fix  combiner  bug which caused incorrect code generation for
            certain division by constant operations.
          + Fix  incorrect  code  generation  due to a bug in range check
            optimizations.
          + Fix   incorrect   code  generation  due  to  mis-handling  of
            clobbered values in CSE.
          + Fix   compiler   abort/segfault  due  to  incorrect  register
            splitting when unrolling loops.
          + Fix  code generation involving autoincremented addresses with
            ternary operators.
          + Work  around  bug  in  the  scheduler  which  caused qt to be
            mis-compiled on some platforms.
          + Fix code generation problems with -fshort-enums.
          + Tighten security for temporary files.
          + Improve  compile  time  for  codes  which  make  heavy use of
            overloaded functions.
          + Fix multiply defined constructor/destructor symbol problems.
          + Avoid   setting   bogus  RPATH  environemnt  variable  during
            bootstrap.
          + Avoid GNU-make dependencies in the texinfo subdir.
          + Install  CPP wrapper script in $(prefix)/bin if --enable-cpp.
            --enable-cpp=<dirname>  can  be used to specify an additional
            install directory for the cpp wrapper script.
          + Fix CSE bug which caused incorrect label-label refs to appear
            on some platforms.
          + Avoid  linking  in  EH  routines  from libgcc if they are not
            needed.
          + Avoid obscure bug in aliasing code.
          + Fix bug in weak symbol handling.
     * Platform-specific improvements and fixes
          + Fix detection of PPro/PII on Unixware 7.
          + Fix compiler segfault when building spec99 and other programs
            for SPARC targets.
          + Fix  code-generation  bugs  for  integer  and  floating point
            conditional move instructions on the PPro/PII.
          + Use fixincludes to fix byteorder problems on i?86-*-sysv.
          + Fix build failure for the arc port.
          + Fix floating point format configuration for i?86-gnu port.
          + Fix  problems  with  hppa1.0-hp-hpux10.20  configuration when
            threads are enabled.
          + Fix coldfire code generation bugs.
          + Fix "unrecognized insn" problems for Alpha and PPC ports.
          + Fix h8/300 code generation problem with floating point values
            in memory.
          + Fix unrecognized insn problems for the m68k port.
          + Fix namespace-pollution problem for the x86 port.
          + Fix problems with old assembler on x86 NeXT systems.
          + Fix PIC code-generation problems for the SPARC port.
          + Fix minor bug with LONG_CALLS in PowerPC SVR4 support.
          + Fix  minor  ISO  namespace  violation in Alpha varargs/stdarg
            support.
          + Fix incorrect "braf" instruction usage for the SH port.
          + Fix minor bug in va-sh which prevented its use with -ansi.
          + Fix problems recognizing and supporting FreeBSD.
          + Handle OpenBSD systems correctly.
          + Minor fixincludes fix for Digital UNIX 4.0B.
          + Fix problems with ctors/dtors in SCO shared libraries.
          + Abort  instead  of  generating  incorrect  code  for PPro/PII
            floating point conditional moves.
          + Avoid  multiply  defined  symbols  on Linux/GNU systems using
            libc-5.4.xx.
          + Fix abort in alpha compiler.
     * Fortran-specific fixes
          + Fix  the  IDate  intrinsic  (VXT) (in libg2c) so the returned
            year  is  in the documented, non-Y2K-compliant range of 0-99,
            instead of being returned as 100 in the year 2000.
          + Fix  the  `Date_and_Time' intrinsic (in libg2c) to return the
            milliseconds value properly in Values(8).
          + Fix  the  `LStat'  intrinsic  (in libg2c) to return device-ID
            information properly in SArray(7).

   Each  release  includes  installation  instructions  in  both HTML and
   plaintext  forms  (see the INSTALL directory in the toplevel directory
   of  the  distribution).  However,  we  also  keep  the most up to date
   [6]installation instructions and [7]build/test status on our web page.
   We will update those pages as new information becomes available.

   The  EGCS  project  would  like to thank the numerous people that have
   contributed new features, test results, bugfixes, etc. This [8]amazing
   group of volunteers is what makes EGCS successful.

   And  finally,  we  can't  in  good  conscience  fail  to  mention some
   [9]caveats to using EGCS 1.1.

   Download EGCS from egcs.cygnus.com (USA California).

   The EGCS 1.1 release is also available on many mirror sites.
   [10]Goto mirror list to find a closer site.
     _________________________________________________________________

   Please  send FSF & GNU inquiries & questions to [11]gnu@gnu.org. There
   are also [12]other ways to contact the FSF.

   These pages are maintained by [13]The GCC team.

   Please  send comments on these web pages and GCC to [14]gcc@gnu.org or
   [15]gcc@gcc.gnu.org, send other questions to [16]gnu@gnu.org.

   Copyright  (C) Free Software Foundation, Inc., 59 Temple Place - Suite
   330, Boston, MA 02111, USA.

   Verbatim  copying and distribution of this entire article is permitted
   in any medium, provided this notice is preserved.

   Last modified 2002-02-19.

References

   1. http://gcc.gnu.org/egcs-1.1/egcs-1.1-test.html
   2. http://gcc.gnu.org/news/gcse.html
   3. http://gcc.gnu.org/news/alias.html
   4. http://gcc.gnu.org/egcs-1.1/c++features.html
   5. http://gcc.gnu.org/egcs-1.1/features.html
   6. http://gcc.gnu.org/install/
   7. http://gcc.gnu.org/egcs-1.1/buildstat.html
   8. http://gcc.gnu.org/onlinedocs/gcc/Contributors.html
   9. http://gcc.gnu.org/egcs-1.1/caveats.html
  10. http://gcc.gnu.org/mirrors.html
  11. mailto:gnu@gnu.org
  12. http://www.gnu.org/home.html#ContactInfo
  13. http://gcc.gnu.org/about.html
  14. mailto:gcc@gnu.org
  15. mailto:gcc@gcc.gnu.org
  16. mailto:gnu@gnu.org
======================================================================
http://gcc.gnu.org/egcs-1.1/features.html

                           EGCS 1.1 new features

     * Integrated  GNU  Fortran  (g77)  compiler and runtime library with
       improvements, based on [1]g77 version 0.5.23.
     * Vast  improvements  in the C++ compiler; so many they have [2]page
       of their own!
     * Compiler implements [3]global common subexpression elimination and
       global copy/constant propagation.
     * More major improvements in the [4]alias analysis code.
     * More  major improvements in the exception handling code to improve
       performance,  lower static overhead and provide the infrastructure
       for future improvements.
     * The infamous /tmp symlink race security problems have been fixed.
     * The regmove optimization pass has been nearly completely rewritten
       to improve performance of generated code.
     * The  compiler  now  recomputes  register  usage information before
       local  register allocation. By providing more accurate information
       to   the   priority   based  allocator,  we  get  better  register
       allocation.
     * The  register reloading phase of the compiler optimizes spill code
       much better than in previous releases.
     * Some   bad   interactions   between  the  register  allocator  and
       instruction  scheduler  have  been fixed, resulting in much better
       code  for  certain  programs.  Additionally,  we  have  tuned  the
       scheduler in various ways to improve performance of generated code
       for some architectures.
     * The    compiler's   branch   shortening   algorithms   have   been
       significantly  improved to work better on targets which align jump
       targets.
     * The  compiler now supports -Os to prefer optimizing for code space
       over optimizing for code speed.
     * The  compiler  will  now  totally  eliminate  library  calls which
       compute  constant  values.  This  primarily  helps targets with no
       integer   div/mul  support  and  targets  without  floating  point
       support.
     * The compiler now supports an extensive "--help" option.
     * cpplib  has  been greatly improved and may be suitable for limited
       use.
     * Memory  footprint  for the compiler has been significantly reduced
       for some pathological cases.
     * The  time  to  build  EGCS  has  been improved for certain targets
       (particularly the alpha and mips platforms).
     * Many infrastructure improvements throughout the compiler, plus the
       usual mountain of bugfixes and minor improvements.
     * Target dependent improvements:
          + SPARC  port  now  includes  V8 plus and V9 support as well as
            performance  tuning  for Ultra class machines. The SPARC port
            now uses the Haifa scheduler.
          + Alpha  port  has  been tuned for the EV6 processor and has an
            optimized  expansion of memcpy/bzero. The Alpha port now uses
            the Haifa scheduler.
          + RS6000/PowerPC:  EGCS  1.1  includes  support for the Power64
            architecture  and aix4.3 support. The RS6000/PowerPC port now
            uses the Haifa scheduler.
          + x86:  Alignment  of static store data and jump targets is per
            Intel  recommendations  now.  Various improvements throughout
            the  x86  port  to improve performance on Pentium processors.
            Conditional  move support has been fixed and enabled for PPro
            processors.   The   x86   port  also  better  supports  64bit
            operations now.
          + MIPS  has  improved  multiply/multiply-add  support  and  now
            includes mips16 ISA support.
          + M68k has many micro-optimizations and Coldfire fixes.
     * Core  compiler  is  based on the GCC development tree from June 9,
       1998, so we have all of the [5]features found in GCC 2.8.
     _________________________________________________________________

   Please  send  FSF & GNU inquiries & questions to [6]gnu@gnu.org. There
   are also [7]other ways to contact the FSF.

   These pages are maintained by [8]The GCC team.

   Please  send  comments on these web pages and GCC to [9]gcc@gnu.org or
   [10]gcc@gcc.gnu.org, send other questions to [11]gnu@gnu.org.

   Copyright  (C) Free Software Foundation, Inc., 59 Temple Place - Suite
   330, Boston, MA 02111, USA.

   Verbatim  copying and distribution of this entire article is permitted
   in any medium, provided this notice is preserved.

   Last modified 2002-02-11.

References

   1. http://gcc.gnu.org/onlinedocs/g77_news.html
   2. http://gcc.gnu.org/egcs-1.1/c++features.html
   3. http://gcc.gnu.org/news/gcse.html
   4. http://gcc.gnu.org/news/alias.html
   5. http://gcc.gnu.org/egcs-1.0/features-2.8.html
   6. mailto:gnu@gnu.org
   7. http://www.gnu.org/home.html#ContactInfo
   8. http://gcc.gnu.org/about.html
   9. mailto:gcc@gnu.org
  10. mailto:gcc@gcc.gnu.org
  11. mailto:gnu@gnu.org
======================================================================
http://gcc.gnu.org/egcs-1.1/caveats.html

                              EGCS 1.1 Caveats

     * EGCS  has an integrated libstdc++, but does not have an integrated
       libg++.  Furthermore  old libg++ releases will not work with EGCS;
       HJ  Lu has made a libg++-2.8.1.2 snapshot available which may work
       with EGCS.
       Note most C++ programs only need libstdc++.
     * Exception   handling   may   not   work   with  shared  libraries,
       particularly  on  alphas,  hppas,  rs6000/powerpc  and  mips based
       platforms.  Exception  handling  is  known  to  work  on x86-linux
       platforms with shared libraries.
     * Some  versions  of  the  Linux kernel have bugs which prevent them
       from  being  compiled  or  from running when compiled by EGCS. See
       [1]the FAQ for additional information.
     * In general, EGCS is more rigorous about rejecting invalid C++ code
       or deprecated C++ constructs than g++-2.7, g++-2.8 or EGCS 1.0. As
       a  result  it  may  be  necessary  to  fix C++ code before it will
       compile with EGCS.
     * G++  is  also  converting toward the ISO C++ standard; as a result
       code  which  was  previously  valid  (and  thus  accepted by other
       compilers and older versions of g++) may no longer be accepted.
     * EGCS  1.1  compiled  C++  code  is not binary compatible with EGCS
       1.0.x or GCC 2.8.x due to changes necessary to support thread safe
       exception handling.
     _________________________________________________________________

   Please  send  FSF & GNU inquiries & questions to [2]gnu@gnu.org. There
   are also [3]other ways to contact the FSF.

   These pages are maintained by [4]The GCC team.

   Please  send  comments on these web pages and GCC to [5]gcc@gnu.org or
   [6]gcc@gcc.gnu.org, send other questions to [7]gnu@gnu.org.

   Copyright  (C) Free Software Foundation, Inc., 59 Temple Place - Suite
   330, Boston, MA 02111, USA.

   Verbatim  copying and distribution of this entire article is permitted
   in any medium, provided this notice is preserved.

   Last modified 2002-02-11.

References

   1. http://gcc.gnu.org/fom_serv/cache/24.html
   2. mailto:gnu@gnu.org
   3. http://www.gnu.org/home.html#ContactInfo
   4. http://gcc.gnu.org/about.html
   5. mailto:gcc@gnu.org
   6. mailto:gcc@gcc.gnu.org
   7. mailto:gnu@gnu.org
======================================================================
http://gcc.gnu.org/egcs-1.0/egcs-1.0.3.html

                                 EGCS 1.0.3

   May 15, 1998

   We are pleased to announce the release of EGCS 1.0.3.

   EGCS  is  a  collaborative  effort involving several groups of hackers
   using  an open development model to accelerate development and testing
   of GNU compilers and runtime libraries.

   EGCS  1.0.3  is a minor update to the EGCS 1.0.2 compiler to fix a few
   problems reported by Red Hat for builds of Red Hat 5.1.
     * Generic bugfixes:
          + Fix  a  typo in the libio library which resulted in incorrect
            behavior of istream::get.
          + Fix the Fortran negative array index problem.
          + Fix  a  major  problem  with  the ObjC runtime thread support
            exposed by glibc2.
          + Reduce memory consumption of the Haifa scheduler.
     * Target specific bugfixes:
          + Fix  one  x86  floating  point code generation bug exposed by
            glibc2 builds.
          + Fix one x86 internal compiler error exposed by glibc2 builds.
          + Fix profiling bugs on the Alpha.
          + Fix ImageMagick & emacs 20.2 build problems on the Alpha.
          + Fix  rs6000/ppc bug when converting values from integer types
            to floating point types.

   An  important  goal  of  EGCS  is  to  allow wide scale testing of new
   features and optimizations which are still under development. However,
   EGCS  has been carefully tested and should be comparable in quality to
   most GCC releases.

   EGCS  1.0.3  is  based  on  an  August 2, 1997 snapshot of the GCC 2.8
   development  sources; it contains nearly all of the new features found
   in GCC 2.8.

   EGCS also contains many improvements and features not found in GCC 2.7
   or GCC 2.8.
     * Integrated C++ runtime libraries, including support for most major
       GNU/Linux systems!
     * The integrated libstdc++ library includes a verbatim copy of SGI's
       STL release instead of a modified copy.
     * Integrated GNU Fortran compiler.
     * New instruction scheduler.
     * New alias analysis code.

   See  the [1]new features page for a more complete list of new features
   found in EGCS 1.0.x releases.

   The EGCS 1.0.3 release includes installation instructions in both HTML
   and  plaintext  forms  (see  the  INSTALL  directory  in  the toplevel
   directory  of  the EGCS 1.0.3 distribution). However, we also keep the
   most  up to date [2]installation instructions and [3]build/test status
   on our web page. We will update those pages as new information becomes
   available.

   And,  we  can't  in good conscience fail to mention some [4]caveats to
   using EGCS.

   Update:  Big  thanks  to  Stanford for providing a high speed link for
   downloading EGCS (go.cygnus.com)!

   Download  EGCS  from  ftp.cygnus.com (USA California) or go.cygnus.com
   (USA California -- High speed link provided by Stanford).

   The EGCS 1.0.3 release is also available on many mirror sites.
   [5]Goto mirror list to find a closer site

   We'd  like  to  thank  the  numerous  people that have contributed new
   features,  test results, bugfixes, etc. Unfortunately, they're far too
   numerous to mention by name.
     _________________________________________________________________

   Please  send  FSF & GNU inquiries & questions to [6]gnu@gnu.org. There
   are also [7]other ways to contact the FSF.

   These pages are maintained by [8]The GCC team.

   Please  send  comments on these web pages and GCC to [9]gcc@gnu.org or
   [10]gcc@gcc.gnu.org, send other questions to [11]gnu@gnu.org.

   Copyright  (C) Free Software Foundation, Inc., 59 Temple Place - Suite
   330, Boston, MA 02111, USA.

   Verbatim  copying and distribution of this entire article is permitted
   in any medium, provided this notice is preserved.

   Last modified 2002-02-10.

References

   1. http://gcc.gnu.org/egcs-1.0/features.html
   2. http://gcc.gnu.org/install/index.html
   3. http://gcc.gnu.org/egcs-1.0/buildstat.html
   4. http://gcc.gnu.org/egcs-1.0/caveats.html
   5. http://gcc.gnu.org/mirrors.html
   6. mailto:gnu@gnu.org
   7. http://www.gnu.org/home.html#ContactInfo
   8. http://gcc.gnu.org/about.html
   9. mailto:gcc@gnu.org
  10. mailto:gcc@gcc.gnu.org
  11. mailto:gnu@gnu.org
======================================================================
http://gcc.gnu.org/egcs-1.0/egcs-1.0.2.html

                                 EGCS 1.0.2

   March 16, 1998

   We are pleased to announce the release of EGCS 1.0.2.

   EGCS  is  a  collaborative  effort involving several groups of hackers
   using  an open development model to accelerate development and testing
   of GNU compilers and runtime libraries.

   EGCS 1.0.2 is a minor update to the EGCS 1.0.1 compiler to fix several
   serious problems in EGCS 1.0.1.
     * General improvements and fixes
          + Memory  consumption  significantly  reduced,  especially  for
            templates and inline functions.
          + Fix various problems with glibc2.1.
          + Fix loop optimization bug exposed by rs6000/ppc port.
          + Fix to avoid potential code generation problems in jump.c.
          + Fix some undefined symbol problems in dwarf1 debug support.
     * g++/libstdc++ improvements and fixes
          + libstdc++  in the EGCS release has been updated and should be
            link compatible with libstdc++-2.8.
          + Various  fixes  in  libio/libstdc++  to  work better on Linux
            systems.
          + Fix  problems  with  duplicate symbols on systems that do not
            support weak symbols.
          + Memory  corruption bug and undefined symbols in bastring have
            been fixed.
          + Various exception handling fixes.
          + Fix compiler abort for very long thunk names.
     * g77 improvements and fixes
          + Fix   compiler  crash  for  omitted  bound  in  Fortran  CASE
            statement.
          + Add missing entries to g77 lang-options.
          + Fix problem with -fpedantic in the g77 compiler.
          + Fix "backspace" problem with g77 on alphas.
          + Fix x86 backend problem with Fortran literals and -fpic.
          + Fix  some of the problems with negative subscripts for g77 on
            alphas.
          + Fixes for Fortran builds on cygwin32/mingw32.
     * platform specific improvements and fixes
          + Fix long double problems on x86 (exposed by glibc).
          + x86 ports define i386 again to keep imake happy.
          + Fix exception handling support on NetBSD ports.
          + Several changes to collect2 to fix many problems with AIX.
          + Define __ELF__ for rs6000/linux.
          + Fix -mcall-linux problem on rs6000/linux.
          + Fix stdarg/vararg problem for rs6000/linux.
          + Allow autoconf to select a proper install problem on AIX 3.1.
          + m68k  port  support  includes -mcpu32 option as well as cpu32
            multilibs.
          + Fix stdarg bug for irix6.
          + Allow EGCS to build on irix5 without the gnu assembler.
          + Fix problem with static linking on sco5.
          + Fix bootstrap on sco5 with native compiler.
          + Fix for abort building newlib on H8 target.
          + Fix fixincludes handling of math.h on SunOS.
          + Minor fix for motorola 3300 m68k systems.

   An  important  goal  of  EGCS  is  to  allow wide scale testing of new
   features and optimizations which are still under development. However,
   EGCS  has been carefully tested and should be comparable in quality to
   most GCC releases.

   EGCS  1.0.2  is  based  on  an  August 2, 1997 snapshot of the GCC 2.8
   development  sources; it contains nearly all of the new features found
   in GCC 2.8.

   EGCS also contains many improvements and features not found in GCC 2.7
   or GCC 2.8.
     * Integrated C++ runtime libraries, including support for most major
       linux systems!
     * The integrated libstdc++ library includes a verbatim copy of SGI's
       STL release.
     * Integrated GNU Fortran compiler.
     * New instruction scheduler.
     * New alias analysis code.

   See  the [1]new features page for a more complete list of new features
   found in EGCS 1.0.x releases.

   The EGCS 1.0.2 release includes installation instructions in both HTML
   and  plaintext  forms  (see  the  INSTALL  directory  in  the toplevel
   directory  of  the EGCS 1.0.2 distribution). However, we also keep the
   most  up to date [2]installation instructions and [3]build/test status
   on our web page. We will update those pages as new information becomes
   available.

   And,  we  can't  in good conscience fail to mention some [4]caveats to
   using EGCS.

   Update:  Big  thanks  to  Stanford for providing a high speed link for
   downloading EGCS (go.cygnus.com)!

   Download  EGCS  from  ftp.cygnus.com (USA California) or go.cygnus.com
   (USA California -- High speed link provided by Stanford).

   The EGCS 1.0.2 release is also available on many mirror sites.
   [5]Goto mirror list to find a closer site

   We'd  like  to  thank  the  numerous  people that have contributed new
   features,  test results, bugfixes, etc. Unfortunately, they're far too
   numerous to mention by name.
     _________________________________________________________________

   Please  send  FSF & GNU inquiries & questions to [6]gnu@gnu.org. There
   are also [7]other ways to contact the FSF.

   These pages are maintained by [8]The GCC team.

   Please  send  comments on these web pages and GCC to [9]gcc@gnu.org or
   [10]gcc@gcc.gnu.org, send other questions to [11]gnu@gnu.org.

   Copyright  (C) Free Software Foundation, Inc., 59 Temple Place - Suite
   330, Boston, MA 02111, USA.

   Verbatim  copying and distribution of this entire article is permitted
   in any medium, provided this notice is preserved.

   Last modified 2002-02-10.

References

   1. http://gcc.gnu.org/egcs-1.0/features.html
   2. http://gcc.gnu.org/install/index.html
   3. http://gcc.gnu.org/egcs-1.0/buildstat.html
   4. http://gcc.gnu.org/egcs-1.0/caveats.html
   5. http://gcc.gnu.org/mirrors.html
   6. mailto:gnu@gnu.org
   7. http://www.gnu.org/home.html#ContactInfo
   8. http://gcc.gnu.org/about.html
   9. mailto:gcc@gnu.org
  10. mailto:gcc@gcc.gnu.org
  11. mailto:gnu@gnu.org
======================================================================
http://gcc.gnu.org/egcs-1.0/egcs-1.0.1.html

                                 EGCS 1.0.1

   January 6, 1998

   We are pleased to announce the release of EGCS 1.0.1.

   EGCS  is  a  collaborative  effort involving several groups of hackers
   using  an open development model to accelerate development and testing
   of GNU compilers and runtime libraries.

   EGCS  1.0.1  is  a  minor update to the EGCS 1.0 compiler to fix a few
   critical bugs and add support for Red Hat 5.0 Linux. Changes since the
   EGCS 1.0 release:
     * Add  support  for  Red  Hat 5.0 Linux and better support for Linux
       systems using glibc2.
       Many  programs  failed  to link when compiled with EGCS 1.0 on Red
       Hat  5.0  or  on systems with newer versions of glibc2. EGCS 1.0.1
       should fix these problems.
     * Compatibility  with  both  EGCS  1.0  and GCC 2.8 libgcc exception
       handling interfaces.
       To  avoid  future  compatibility problems, we strongly urge anyone
       who  is planning on distributing shared libraries that contain C++
       code to upgrade to EGCS 1.0.1 first.
       Soon  after  EGCS  1.0  was released, the GCC developers made some
       incompatible  changes  in  libgcc's exception handling interfaces.
       These  changes  were  needed  to solve problems on some platforms.
       This  means  that GCC 2.8.0, when released, will not be seamlessly
       compatible  with shared libraries built by EGCS 1.0. The reason is
       that  the libgcc.a in GCC 2.8.0 will not contain a function needed
       by the old interface.
       The  result  of  this  is that there may be compatibility problems
       with shared libraries built by EGCS 1.0 when used with GCC 2.8.0.
       With   EGCS  1.0.1,  generated  code  uses  the  new  (GCC  2.8.0)
       interface,  and libgcc.a has the support routines for both the old
       and  the  new  interfaces  (so EGCS 1.0.1 and EGCS 1.0 code can be
       freely  mixed,  and  EGCS  1.0.1  and GCC 2.8.0 code can be freely
       mixed).
       The maintainers of GCC 2.x have decided against including seamless
       support  for  the  old  interface  in  2.8.0,  since  it was never
       "official", so to avoid future compatibility problems we recommend
       against  distributing  any shared libraries built by EGCS 1.0 that
       contain C++ code (upgrade to 1.0.1 and use that).
     * Various bugfixes in the x86, hppa, mips, and rs6000/ppc backends.
       The  x86  changes fix code generation errors exposed when building
       glibc2 and the Linux dynamic linker (ld.so).
       The  hppa  change  fixes  a compiler abort when configured for use
       with RTEMS.
       The  MIPS  changes fix problems with the definition of LONG_MAX on
       newer systems, allow for command line selection of the target ABI,
       and fix one code generation problem.
       The  rs6000/ppc change fixes some problems with passing structures
       to varargs/stdarg functions.
     * A  few machine independent bugfixes, mostly to fix code generation
       errors when building Linux kernels or glibc.
     * Fix a few critical exception handling and template bugs in the C++
       compiler.
     * Fix Fortran namelist bug on alphas.
     * Fix build problems on x86-solaris systems.

   An  important  goal  of  EGCS  is  to  allow wide scale testing of new
   features and optimizations which are still under development. However,
   EGCS  has been carefully tested and should be comparable in quality to
   most GCC releases.

   EGCS  1.0.1  is  based  on  an  August 2, 1997 snapshot of the GCC 2.8
   development  sources; it contains nearly all of the new features found
   in GCC 2.8.

   EGCS also contains many improvements and features not found in GCC 2.7
   and even the soon to be released GCC 2.8 compilers.
     * Integrated C++ runtime libraries, including support for most major
       linux systems!
     * The integrated libstdc++ library includes a verbatim copy of SGI's
       STL release.
     * Integrated GNU Fortran compiler
     * New instruction scheduler
     * New alias analysis code

   See  the [1]new features page for a more complete list of new features
   found in EGCS 1.0.x releases.

   The EGCS 1.0.1 release includes installation instructions in both HTML
   and  plaintext  forms  (see  the  INSTALL  directory  in  the toplevel
   directory  of  the EGCS 1.0.1 distribution). However, we also keep the
   most  up to date [2]installation instructions and [3]build/test status
   on our web page. We will update those pages as new information becomes
   available.

   And,  we  can't  in good conscience fail to mention some [4]caveats to
   using EGCS.

   Update:  Big  thanks  to  Stanford for providing a high speed link for
   downloading EGCS (go.cygnus.com)!

   Download  EGCS  from  ftp.cygnus.com (USA California) or go.cygnus.com
   (USA California -- High speed link provided by Stanford).

   The EGCS 1.0.1 release is also available on many mirror sites.
   [5]Goto mirror list to find a closer site

   We'd  like  to  thank  the  numerous  people that have contributed new
   features,  test results, bugfixes, etc. Unfortunately, they're far too
   numerous to mention by name.
     _________________________________________________________________

   Please  send  FSF & GNU inquiries & questions to [6]gnu@gnu.org. There
   are also [7]other ways to contact the FSF.

   These pages are maintained by [8]The GCC team.

   Please  send  comments on these web pages and GCC to [9]gcc@gnu.org or
   [10]gcc@gcc.gnu.org, send other questions to [11]gnu@gnu.org.

   Copyright  (C) Free Software Foundation, Inc., 59 Temple Place - Suite
   330, Boston, MA 02111, USA.

   Verbatim  copying and distribution of this entire article is permitted
   in any medium, provided this notice is preserved.

   Last modified 2002-02-10.

References

   1. http://gcc.gnu.org/egcs-1.0/features.html
   2. http://gcc.gnu.org/install/index.html
   3. http://gcc.gnu.org/egcs-1.0/buildstat.html
   4. http://gcc.gnu.org/egcs-1.0/caveats.html
   5. http://gcc.gnu.org/mirrors.html
   6. mailto:gnu@gnu.org
   7. http://www.gnu.org/home.html#ContactInfo
   8. http://gcc.gnu.org/about.html
   9. mailto:gcc@gnu.org
  10. mailto:gcc@gcc.gnu.org
  11. mailto:gnu@gnu.org
======================================================================
http://gcc.gnu.org/egcs-1.0/egcs-1.0.html

                                  EGCS 1.0

   December 3, 1997

   We are pleased to announce the release of EGCS 1.0.

   EGCS  is  a  collaborative  effort involving several groups of hackers
   using  an open development model to accelerate development and testing
   of GNU compilers and runtime libraries.

   An  important  goal  of  EGCS  is  to  allow  wide  scale  testing  of
   experimental features and optimizations; therefore, EGCS contains some
   features and optimizations which are still under development. However,
   EGCS  has been carefully tested and should be comparable in quality to
   most GCC releases.

   EGCS  1.0  is  based  on  an  August  2,  1997 snapshot of the GCC 2.8
   development  sources; it contains nearly all of the new features found
   in GCC 2.8.

   EGCS 1.0 also contains many improvements and features not found in GCC
   2.7 and even the soon to be released GCC 2.8 compilers.
     * Integrated C++ runtime libraries, including support for most major
       linux systems!
     * The integrated libstdc++ library includes a verbatim copy of SGI's
       STL release.
     * Integrated GNU Fortran compiler.
     * New instruction scheduler.
     * New alias analysis code.

   See the [1]new features page for a more complete list of new features.

   The  EGCS  1.0 release includes installation instructions in both HTML
   and  plaintext  forms  (see  the  INSTALL  directory  in  the toplevel
   directory  of  the  EGCS  1.0 distribution). However, we also keep the
   most  up to date [2]installation instructions and [3]build/test status
   on our web page. We will update those pages as new information becomes
   available.

   And,  we  can't  in good conscience fail to mention some [4]caveats to
   using EGCS.

   Update:  The  T1  into  our  main  California  offices  has  been 100%
   saturated  since  shortly  after  the release. We've added an EGCS 1.0
   mirror  at  our  Massachusetts  office to help share the load. We also
   encourage  folks  to  use  the  many  mirrors available throughout the
   world.

   Update:  Big  thanks  to  Stanford for providing a high speed link for
   downloading EGCS (go.cygnus.com)!

   Download  EGCS  from  ftp.cygnus.com (USA California) or go.cygnus.com
   (USA California -- High speed link provided by Stanford).

   The EGCS 1.0 release should be available on most mirror sites by now.
   [5]Goto mirror list to find a closer site

   We'd  like  to  thank  the  numerous  people that have contributed new
   features,  test results, bugfixes, etc. Unfortunately, they're far too
   numerous to mention by name.
     _________________________________________________________________

   Please  send  FSF & GNU inquiries & questions to [6]gnu@gnu.org. There
   are also [7]other ways to contact the FSF.

   These pages are maintained by [8]The GCC team.

   Please  send  comments on these web pages and GCC to [9]gcc@gnu.org or
   [10]gcc@gcc.gnu.org, send other questions to [11]gnu@gnu.org.

   Copyright  (C) Free Software Foundation, Inc., 59 Temple Place - Suite
   330, Boston, MA 02111, USA.

   Verbatim  copying and distribution of this entire article is permitted
   in any medium, provided this notice is preserved.

   Last modified 2002-02-10.

References

   1. http://gcc.gnu.org/egcs-1.0/features.html
   2. http://gcc.gnu.org/install/index.html
   3. http://gcc.gnu.org/egcs-1.0/buildstat.html
   4. http://gcc.gnu.org/egcs-1.0/caveats.html
   5. http://gcc.gnu.org/mirrors.html
   6. mailto:gnu@gnu.org
   7. http://www.gnu.org/home.html#ContactInfo
   8. http://gcc.gnu.org/about.html
   9. mailto:gcc@gnu.org
  10. mailto:gcc@gcc.gnu.org
  11. mailto:gnu@gnu.org
======================================================================
http://gcc.gnu.org/egcs-1.0/features.html

                             EGCS 1.0 features

     * Core  compiler  is  based on the gcc2 development tree from Aug 2,
       1997, so we have most of the [1]features found in GCC 2.8.
     * Integrated GNU Fortran compiler based on g77-0.5.22-19970929.
     * Vast  improvements  in the C++ compiler; so many they have [2]page
       of their own!
     * Integrated C++ runtime libraries, including support for most major
       linux systems!
     * New  instruction  scheduler  from IBM Haifa which includes support
       for  function  wide  instruction scheduling as well as superscalar
       scheduling.
     * Significantly improved alias analysis code.
     * Improved register allocation for two address machines.
     * Significant  code  generation  improvements  for  Fortran  code on
       Alphas.
     * Various  optimizations  from  the  g77 project as well as improved
       loop optimizations.
     * Dwarf2 debug format support for some targets.
     * egcs   libstdc++  includes  the  SGI  STL  implementation  without
       changes.
     * As  a  result  of  these  and  other changes, egcs libstc++ is not
       binary compatible with previous releases of libstdc++.
     * Various  new  ports  -- UltraSPARC, Irix6.2 & Irix6.3 support, The
       SCO  Openserver  5  family (5.0.{0,2,4} and Internet FastStart 1.0
       and  1.1),  Support for RTEMS on several embedded targets, Support
       for arm-linux, Mitsubishi M32R, Hitachi H8/S, Matsushita MN102 and
       MN103, NEC V850, Sparclet, Solaris & Linux on PowerPCs, etc.
     * Integrated testsuites for gcc, g++, g77, libstdc++ and libio.
     * RS6000/PowerPC   ports   generate   code  which  can  run  on  all
       RS6000/PowerPC variants by default.
     * -mcpu=  and  -march=  switches  for  the  x86 port to allow better
       control over how the x86 port generates code.
     * Includes  the template repository patch (aka repo patch); note the
       new template code makes repo obsolete for ELF systems using gnu-ld
       such as Linux.
     * Plus the usual assortment of bugfixes and improvements.
     _________________________________________________________________

   Please  send  FSF & GNU inquiries & questions to [3]gnu@gnu.org. There
   are also [4]other ways to contact the FSF.

   These pages are maintained by [5]The GCC team.

   Please  send  comments on these web pages and GCC to [6]gcc@gnu.org or
   [7]gcc@gcc.gnu.org, send other questions to [8]gnu@gnu.org.

   Copyright  (C) Free Software Foundation, Inc., 59 Temple Place - Suite
   330, Boston, MA 02111, USA.

   Verbatim  copying and distribution of this entire article is permitted
   in any medium, provided this notice is preserved.

   Last modified 2002-02-10.

References

   1. http://gcc.gnu.org/egcs-1.0/features-2.8.html
   2. http://gcc.gnu.org/egcs-1.0/c++features.html
   3. mailto:gnu@gnu.org
   4. http://www.gnu.org/home.html#ContactInfo
   5. http://gcc.gnu.org/about.html
   6. mailto:gcc@gnu.org
   7. mailto:gcc@gcc.gnu.org
   8. mailto:gnu@gnu.org
======================================================================
http://gcc.gnu.org/egcs-1.0/caveats.html

                              EGCS 1.0 Caveats

     * EGCS  has an integrated libstdc++, but does not have an integrated
       libg++. Furthermore old libg++ releases will not work with egc; HJ
       Lu has made a libg++-2.8.1.2 available which may work with EGCS.
       Note most C++ programs only need libstdc++.
     * Note  that using -pedantic or -Wreturn-type can cause an explosion
       in  the  amount of memory needed for template-heavy C++ code, such
       as   code   that   uses   STL.   Also  note  that  -Wall  includes
       -Wreturn-type,  so  if  you  use  -Wall  you  will need to specify
       -Wno-return-type to turn it off.
     * Exception   handling   may   not   work   with  shared  libraries,
       particularly on alphas, hppas, and mips based platforms. Exception
       handling  is  known  to  work  on  x86-linux platforms with shared
       libraries.
     * Some  versions  of  the  Linux kernel have bugs which prevent them
       from  being  compiled  or  from running when compiled by EGCS. See
       [1]the FAQ for additional information.
     * In general, EGCS is more rigorous about rejecting invalid C++ code
       or  deprecated  C++ constructs than G++ 2.7. As a result it may be
       necessary to fix C++ code before it will compile with EGCS.
     * G++  is  also  aggressively tracking the C++ standard; as a result
       code  which  was  previously  valid  (and  thus  accepted by other
       compilers and older versions of G++) may no longer be accepted.
     * EGCS  1.0 may not work with Red Hat Linux 5.0 on all targets. EGCS
       1.0.x and later releases should work with Red Hat Linux 5.0.
     _________________________________________________________________

   Please  send  FSF & GNU inquiries & questions to [2]gnu@gnu.org. There
   are also [3]other ways to contact the FSF.

   These pages are maintained by [4]The GCC team.

   Please  send  comments on these web pages and GCC to [5]gcc@gnu.org or
   [6]gcc@gcc.gnu.org, send other questions to [7]gnu@gnu.org.

   Copyright  (C) Free Software Foundation, Inc., 59 Temple Place - Suite
   330, Boston, MA 02111, USA.

   Verbatim  copying and distribution of this entire article is permitted
   in any medium, provided this notice is preserved.

   Last modified 2002-02-10.

References

   1. http://gcc.gnu.org/fom_serv/cache/24.html
   2. mailto:gnu@gnu.org
   3. http://www.gnu.org/home.html#ContactInfo
   4. http://gcc.gnu.org/about.html
   5. mailto:gcc@gnu.org
   6. mailto:gcc@gcc.gnu.org
   7. mailto:gnu@gnu.org
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