http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49469
--- Comment #4 from Xiyue Deng <manphiz at gmail dot com> 2012-02-07 03:28:06 UTC --- Created attachment 26594 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26594 config.log This is /tmp/gcc-build/i386/zlib/config when build with trunk revision 183937. The configure options are: ${SOURCE_PATH}/configure \ --prefix=${PREFIX} \ --with-gmp=${PREFIX} \ --with-mpfr=${PREFIX} \ --with-mpc=${PREFIX} \ --with-ppl=${PREFIX} \ --with-cloog=${PREFIX} \ --enable-cloog-backend=isl \ --program-suffix=-${VERSION} \ --enable-languages=c,c++,objc,obj-c++,fortran \ --disable-nls \ --disable-werror \ --enable-__cxa_init \ --enable-concept-checks \ --enable-decimal-float \ --enable-full-dynamic-string \ --enable-libstdcxx-time \ --enable-multilib \ --enable-plugin \ --enable-static \ --enable-shared \ --enable-threads \ --enable-version-specific-runtime-libs HTH.