------- Comment #2 from hjl dot tools at gmail dot com 2010-09-17 13:35 ------- I got
# /export/build/gnu/gcc-32bit/build-i686-linux/gcc/xgcc -B/export/build/gnu/gcc-32bit/build-i686-linux/gcc/ /export/gnu/import/git/gcc/gcc/testsuite/gcc.dg/pr28712.c -flto -r -nostdlib /export/gnu/import/git/gcc/gcc/testsuite/gcc.dg/pr28712.c /export/gnu/import/git/gcc/gcc/testsuite/gcc.dg/pr28712.c -lm -o pr28712.exe -v .... /export/build/gnu/gcc-32bit/build-i686-linux/gcc/collect-ld --eh-frame-hdr -m elf_i386 -dynamic-linker /lib/ld-linux.so.2 -o pr28712.exe -r -L/export/build/gnu/gcc-32bit/build-i686-linux/gcc /tmp/ccLvxKIY.o /tmp/ccpjReNk.o /tmp/ccBVusXG.o -lm /usr/local/bin/ld: cannot find -lm collect2: ld returned 1 exit status For some reason, gcc driver failed to pass -L/usr/lib to collect-ld. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45702