http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47460
--- Comment #3 from Manuel Holtgrewe <manuel.holtgr...@fu-berlin.de> 2011-01-25 16:53:23 UTC --- Sorry for posting this here again, but could somebody clarify the following, nevertheless and if this is expected behaviour, close the bug as invalid? In the future, I'll first try to ask on the list. Versions 4.4 and 4.5 were built with the same parameters (modulo some libraries), so my question is: Why are the __sync_fetch* builtins not found in 4.4 by default? Is this related to the configure parameters? --with-cloog=/group/agabi/software/i686/gcc-4.4.5 --with-ppl=/group/agabi/software/i686/gcc-4.4.5 --8<--8<--8<--8<--8<--8<--8<--8<--8<--8<-- $ for i in 1 2 3 4 5; do g++-4.$i --version; g++-4.$i -v; done g++-4.1 (GCC) 4.1.3 20080704 (prerelease) (Debian 4.1.2-25) Copyright (C) 2006 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Using built-in specs. Target: i486-linux-gnu Configured with: ../src/configure -v --enable-languages=c,c++ --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --enable-nls --with-gxx-include-dir=/usr/include/c++/4.1.3 --program-suffix=-4.1 --enable-__cxa_atexit --enable-clocale=gnu --enable-libstdcxx-debug --with-tune=generic --enable-checking=release i486-linux-gnu Thread model: posix gcc version 4.1.3 20080704 (prerelease) (Debian 4.1.2-25) g++-4.2 (GCC) 4.2.4 (Debian 4.2.4-6) Copyright (C) 2007 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Using built-in specs. Target: i486-linux-gnu Configured with: ../src/configure -v --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --enable-nls --with-gxx-include-dir=/usr/include/c++/4.2 --program-suffix=-4.2 --enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc --enable-mpfr --enable-targets=all --with-tune=generic --enable-checking=release --build=i486-linux-gnu --host=i486-linux-gnu --target=i486-linux-gnu Thread model: posix gcc version 4.2.4 (Debian 4.2.4-6) g++-4.3 (Debian 4.3.2-1.1) 4.3.2 Copyright (C) 2008 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Using built-in specs. Target: i486-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Debian 4.3.2-1.1' --with-bugurl=file:///usr/share/doc/gcc-4.3/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --enable-shared --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --enable-nls --with-gxx-include-dir=/usr/include/c++/4.3 --program-suffix=-4.3 --enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc --enable-mpfr --enable-targets=all --enable-cld --enable-checking=release --build=i486-linux-gnu --host=i486-linux-gnu --target=i486-linux-gnu Thread model: posix gcc version 4.3.2 (Debian 4.3.2-1.1) g++-4.4.5 (GCC) 4.4.5 Copyright (C) 2010 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Using built-in specs. Target: i686-pc-linux-gnu Configured with: ../../gcc-4.4.5/configure --prefix=/group/agabi/software/i686/gcc-4.4.5 --with-mpfr=/group/agabi/software/i686/gcc-4.4.5 --with-mpfr-lib=/group/agabi/software/i686/gcc-4.4.5/lib --with-gmp=/group/agabi/software/i686/gcc-4.4.5 --with-mpc=/group/agabi/software/i686/gcc-4.4.5 --with-cloog=/group/agabi/software/i686/gcc-4.4.5 --with-ppl=/group/agabi/software/i686/gcc-4.4.5 --enable-languages=c,c++ --program-suffix=-4.4.5 Thread model: posix gcc version 4.4.5 (GCC) g++-4.5.1 (GCC) 4.5.1 Copyright (C) 2010 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Using built-in specs. COLLECT_GCC=/group/agabi/software/i686/gcc-4.5.1/bin/g++-4.5.1 COLLECT_LTO_WRAPPER=/group/agabi/software/i686/gcc-4.5.1/libexec/gcc/i686-pc-linux-gnu/4.5.1/lto-wrapper Target: i686-pc-linux-gnu Configured with: ../configure --prefix=/group/agabi/software/i686/gcc-4.5.1 --with-mpfr=/group/agabi/software/i686/gcc-4.5.1 --with-mpfr-lib=/group/agabi/software/i686/gcc-4.5.1/lib --with-gmp=/group/agabi/software/i686/gcc-4.5.1 --with-mpc=/group/agabi/software/i686/gcc-4.5.1 --enable-languages=c,c++ --program-suffix=-4.5.1 Thread model: posix gcc version 4.5.1 (GCC)
