Mac OS X Ver 10.6.3 $ gcc --version i686-apple-darwin10-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5646) (dot 1) 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. /Users/platt/install/GccSources/gcc-4.5.0.build2 $ ../gcc-4.5.0/configure --enable-languages=c,c++,objc,obj-c++,fortran … make … Comparing stages 2 and 3 warning: gcc/cc1-checksum.o differs warning: gcc/cc1obj-checksum.o differs warning: gcc/cc1objplus-checksum.o differs warning: gcc/cc1plus-checksum.o differs Bootstrap comparison failure! x86_64-apple-darwin10.3.0/libgomp/.libs/bar.o differs x86_64-apple-darwin10.3.0/libgomp/.libs/barrier.o differs x86_64-apple-darwin10.3.0/libgomp/.libs/env.o differs x86_64-apple-darwin10.3.0/libgomp/.libs/iter.o differs x86_64-apple-darwin10.3.0/libgomp/.libs/iter_ull.o differs x86_64-apple-darwin10.3.0/libgomp/.libs/lock.o differs x86_64-apple-darwin10.3.0/libgomp/.libs/loop.o differs x86_64-apple-darwin10.3.0/libgomp/.libs/loop_ull.o differs x86_64-apple-darwin10.3.0/libgomp/.libs/ordered.o differs x86_64-apple-darwin10.3.0/libgomp/.libs/parallel.o differs x86_64-apple-darwin10.3.0/libgomp/.libs/proc.o differs x86_64-apple-darwin10.3.0/libgomp/.libs/sections.o differs x86_64-apple-darwin10.3.0/libgomp/.libs/single.o differs x86_64-apple-darwin10.3.0/libgomp/.libs/task.o differs x86_64-apple-darwin10.3.0/libgomp/.libs/team.o differs x86_64-apple-darwin10.3.0/libgomp/.libs/work.o differs x86_64-apple-darwin10.3.0/libgomp/bar.o differs x86_64-apple-darwin10.3.0/libgomp/barrier.o differs x86_64-apple-darwin10.3.0/libgomp/env.o differs x86_64-apple-darwin10.3.0/libgomp/iter.o differs x86_64-apple-darwin10.3.0/libgomp/iter_ull.o differs x86_64-apple-darwin10.3.0/libgomp/lock.o differs x86_64-apple-darwin10.3.0/libgomp/loop.o differs x86_64-apple-darwin10.3.0/libgomp/loop_ull.o differs x86_64-apple-darwin10.3.0/libgomp/ordered.o differs x86_64-apple-darwin10.3.0/libgomp/parallel.o differs x86_64-apple-darwin10.3.0/libgomp/proc.o differs x86_64-apple-darwin10.3.0/libgomp/sections.o differs x86_64-apple-darwin10.3.0/libgomp/single.o differs x86_64-apple-darwin10.3.0/libgomp/task.o differs x86_64-apple-darwin10.3.0/libgomp/team.o differs x86_64-apple-darwin10.3.0/libgomp/work.o differs make[2]: *** [compare] Error 1 make[1]: *** [stage3-bubble] Error 2 make: *** [all] Error 2 platt@mastodon.watson.ibm.com:/Users/platt/install/GccSources/gcc-4.5.0.build2 $ Build DID work with gcc-4.4.3.
This is a duplicate of pr43170. A couple of questions: (1) have you use the terminal for a long time with multiple windows/tabs? (2) can you test gcc.c-torture/compile/limits-structnest.c -O2? It should take a few seconds. If not, abort it after a couple minutes. (3) are you using Mathematica? The reasons of these questions, is that my macbook ended in a curious state in which gcc.c-torture/compile/limits-structnest.c was timed out while regtesting and I had several comparison failures for libgomp. All these disappeared when I had to reboot after the last security patches.
*** This bug has been marked as a duplicate of 43170 ***