X-Bugzilla-Reason: CC I've noticed the problem while building libsndfile-1.0.17 from source after switching from SUSE 10.2 to SUSE 10.3, and thus from gcc-4.1.2 to gcc-4.2.1.
I have built myself a number of 'gcc' versions: 3.4.6, 4.2.0, 4.2.1, 4.2.2. With gcc-3.4.6, gcc-4.1.2 default build of libsndfile-1.0.17 (i.e. -O2 optimization) progresses just fine, 'make check' does not fail. With all the above gcc-4.2.x default build fails during 'make check' with these error messages: " Line 765: Signal is all zeros (-27260928, 0xFE600800). make[1]: *** [wav-tests] Error 1 make[1]: Leaving directory `/mnt/sda8/sergei/gcc4.2.x-O2_bug/gcc-4.2.2-O2/libsndfile-1.0.17/tests' make: *** [check-recursive] Error 1 ". So, I believe, the bug was introduced into gcc-4.2.0 and is still there. Setting '-O1' on 'configure' command line like this: CFLAGS=-O1 allows 'make check' to complete normally. One can see examples of successful and failing runs in the to be uploaded gcc4.2.x-O2_bug.tar.gz tarball. When unpackaged, the tarball should produce three directories of interest: gcc4.2.x-O2_bug/gcc-4.2.2-O2/libsndfile-1.0.17 gcc4.2.x-O2_bug/gcc-4.2.2-O1/libsndfile-1.0.17 gcc4.2.x-O2_bug/gcc-3.4.6-O2/libsndfile-1.0.17 . In the above directories one can see 'make_check.log' files and gcc4.2.x-O2_bug/gcc-4.2.2-O2/libsndfile-1.0.17/make_check.log file contains the above error messages indicating the failure. Likewise, each of the above directories contains a simple 'run.sh' script looking like this: " [EMAIL PROTECTED]:/mnt/sda8/sergei> cat gcc4.2.x-O2_bug/gcc-4.2.2-O1/libsndfile-1.0.17/run.sh #!/bin/sh -v make clean 1>make_clean.log 2>&1 ./configure CC=/maxtor5/sergei/AppsFromScratchWD/install/gcc-4.2.2/bin/gcc CFLAGS=-O1 1>configure.log 2>&1 \ && make 1>make.log 2>&1 \ && make check 1>make_check.log 2>&1 [EMAIL PROTECTED]:/mnt/sda8/sergei> ". So, one can reproduce the bug (and the correct behavior) by changing the path after "CC=" and running the script as "./run.sh". Since I am not a libsndfile-1.0.17 developer, I am not familiar with inner workings of the library, hopefully folks on [EMAIL PROTECTED] list (unfortunately, the list does not have WEB archive) will be able to help. People on the list confirm the problem. As you all probably already know, 'libsndfile' "lives" here: http://www.mega-nerd.com/libsndfile/ . -- Summary: 'make check' of libsndfile-1.0.17 fails with gcc-4.2.2 - O2 optimization, OK with -O1 one Product: gcc Version: 4.2.2 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: sergstesh at yahoo dot com GCC host triplet: i686-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34841
