Hello,
I compile and install most of previous gcc versions on our linux cluster
(running centOS 7.9) these last years.
When building versions 11.3.0 and 12.1.0 I encounter an error and
searching on the internet does not provide any answer. Here follows what
I did for version 12.1.0
So, I get and expand the gcc 12.1.0 tarball, then :
$ cd gcc-12.1.0
./contrib/download_prerequisites
$ module load gcc/10.3.0
$ export CC=/trinity/shared/apps/cv-standard/gcc/10.3.0/bin/gcc
$ export CXX=/trinity/shared/apps/cv-standard/gcc/10.3.0/bin/g++
$ mkdir ../gcc-12.1.0_build
$ cd ../gcc-12.1.0_build
$ ../gcc-12.1.0/configure --disable-multilib --enable-threads=posix
--enable-languages=c,c++,fortran,go > ./GM_configure_01.log 2>&1
Everything seems to be fine in the configure step. Next, I launch the build.
$ make > GM_build.log 2>&1
What I get at the end of the file GM_build_01.log is
...
/trinity/shared/apps/cv-standard/gcc/10.3.0/bin/gcc -DHAVE_CONFIG_H
-I. -I../../gcc-12.1.0/isl -I../../gcc-12.1.0/isl/include -Iinclude/
-I/scratch/CCIPL/moebs-g/SOFT/GNU/gcc-12.1.0_build/gmp/../../gcc-12.1.0/gmp
-I/scratch/CCIPL/moebs-g/SOFT/GNU/gcc-12.1.0_build/./gmp -g -MT
schedule_cmp.o -MD -MP -MF $depbase.Tpo -c -o schedule_cmp.o
../../gcc-12.1.0/isl/schedule_cmp.c &&\
mv -f $depbase.Tpo $depbase.Po
/bin/sh ./libtool --tag=CC --mode=link
/trinity/shared/apps/cv-standard/gcc/10.3.0/bin/gcc -g
-static-libstdc++ -static-libgcc -o isl_schedule_cmp schedule_cmp.o
libisl.la /scratch/CCIPL/moebs-g/SOFT/GNU/gcc-12.1.0_build/./gmp/libgmp.la
libtool: link: /trinity/shared/apps/cv-standard/gcc/10.3.0/bin/gcc -g
-static-libstdc++ -static-libgcc -o isl_schedule_cmp schedule_cmp.o
./.libs/libisl.a
/scratch/CCIPL/moebs-g/SOFT/GNU/gcc-12.1.0_build/./gmp/.libs/libgmp.a
/trinity/shared/apps/cv-standard/gcc/10.3.0/bin/g++ -std=c++11
-DHAVE_CONFIG_H -I. -I../../gcc-12.1.0/isl
-I../../gcc-12.1.0/isl/include -Iinclude/
-I/scratch/CCIPL/moebs-g/SOFT/GNU/gcc-12.1.0_build/gmp/../../gcc-12.1.0/gmp
-I/scratch/CCIPL/moebs-g/SOFT/GNU/gcc-12.1.0_build/./gmp
-UCOMPILE_ERROR -g -MT isl_test_cpp-isl_test_cpp.o -MD -MP -MF
.deps/isl_test_cpp-isl_test_cpp.Tpo -c -o isl_test_cpp-isl_test_cpp.o
`test -f 'isl_test_cpp.cc' || echo '../../gcc-12.1.0/isl/'`isl_test_cpp.cc
In include file
from/scratch/trinity/shared/apps/cv-standard/gcc/10.3.0/include/c++/10.3.0/cstdlib:75,
from
/scratch/trinity/shared/apps/cv-standard/gcc/10.3.0/include/c++/10.3.0/ext/string_conversions.h:41,
frpm
/scratch/trinity/shared/apps/cv-standard/gcc/10.3.0/include/c++/10.3.0/bits/basic_string.h:6545,
from
/scratch/trinity/shared/apps/cv-standard/gcc/10.3.0/include/c++/10.3.0/string:55,
from ../../gcc-12.1.0/isl/isl_test_cpp.cc:9:
/usr/include/stdlib.h:95:1: error: « __BEGIN_NAMESPACE_STD » does not
name a type
95 | __BEGIN_NAMESPACE_STD
| ^~~~~~~~~~~~~~~~~~~~~
/usr/include/stdlib.h:101:5: error: « div_t » does not name a type
101 | } div_t;
| ^~~~~
/usr/include/stdlib.h:112:1: error: « __END_NAMESPACE_STD » does not
name a type
112 | __END_NAMESPACE_STD
| ^~~~~~~~~~~~~~~~~~~
/usr/include/stdlib.h:121:5: error: « lldiv_t » does not name a type;
121 | } lldiv_t;
| ^~~~~~~
| ldiv_t
/usr/include/stdlib.h:123:1: error: « __END_NAMESPACE_C99 » does not
name a type
123 | __END_NAMESPACE_C99
| ^~~~~~~~~~~~~~~~~~~
/usr/include/stdlib.h:142:1: error: « __BEGIN_NAMESPACE_STD » does not
name a type
142 | __BEGIN_NAMESPACE_STD
| ^~~~~~~~~~~~~~~~~~~~~
/usr/include/stdlib.h:152:1: error: « __END_NAMESPACE_STD » does not
name a type
152 | __END_NAMESPACE_STD
| ^~~~~~~~~~~~~~~~~~~
/usr/include/stdlib.h:159:1: error: « __END_NAMESPACE_C99 » does not
name a type
159 | __END_NAMESPACE_C99
| ^~~~~~~~~~~~~~~~~~~
/usr/include/stdlib.h:167:1: error: « __END_NAMESPACE_STD » does not
name a type
167 | __END_NAMESPACE_STD
| ^~~~~~~~~~~~~~~~~~~
/usr/include/stdlib.h:178:1: error: « __END_NAMESPACE_C99 » does not
name a type
178 | __END_NAMESPACE_C99
| ^~~~~~~~~~~~~~~~~~~
/usr/include/stdlib.h:190:1: error: « __END_NAMESPACE_STD » does not
name a type
190 | __END_NAMESPACE_STD
| ^~~~~~~~~~~~~~~~~~~
/usr/include/stdlib.h:217:1: error: « __END_NAMESPACE_C99 » does not
name a type
217 | __END_NAMESPACE_C99
| ^~~~~~~~~~~~~~~~~~~
and in the stdlib.h file I have :
$ head /usr/include/stdlib.h
/* Copyright (C) 1991-2007, 2009-2011, 2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
...
/*
* ISO C99 Standard: 7.20 General utilities <stdlib.h>
*/
I've never seen this before with previous versions of gcc.
Thank you for your help.
Regards,
Guy.
