libisofs ftbfs on armel with current gcc-4.5

[Steve Langasek]

libisofs fails to build from source on armel with gcc-4.5 4.5.2-7ubuntu1, with an ICE:

/bin/bash ./libtool --silent --tag=CC --mode=compile gcc -DPACKAGE_NAME=\"libisofs\" -DPACKAGE_TARNAME=\"libisofs\" -DPACKAGE_VERSION=\"0.6.32\" -DPACKAGE_STRING=\"libisofs\ 0.6.32\" -DPACKAGE_BUGREPORT=\"http://libburnia-project.org\" -DPACKAGE=\"libisofs\" -DVERSION=\"0.6.32\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -D_FILE_OFFSET_BITS=64 -DHAVE_FSEEKO=1 -DICONV_CONST= -DHAVE_DLFCN_H=1 -D_GNU_SOURCE=1 -DHAVE_TM_GMTOFF=1 -DHAVE_TIMEGM=1 -DHAVE_EACCESS=1 -DHAVE_LIBACL=1 -DHAVE_LIBZ=1 -I. -I. -DLibisofs_with_aaip_acL -DLibisofs_with_aaip_xattR -DLibisofs_with_zliB -g -O2 -g -O2 -g -pedantic -Wall -DDEBUG -c -o libisofs/libisofs_libisofs_la-make_isohybrid_mbr.lo `test -f 'libisofs/make_isohybrid_mbr.c' || echo './'`libisofs/make_isohybrid_mbr.c
libisofs/make_isohybrid_mbr.c: In function 'make_isolinux_mbr':
libisofs/make_isohybrid_mbr.c:446:1: internal compiler error: in get_arm_condition_code, at config/arm/arm.c:17274
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.5/README.Bugs> for instructions.
make[1]: *** [libisofs/libisofs_libisofs_la-make_isohybrid_mbr.lo] Error 1

Full build log is at <http://launchpadlibrarian.net/67311123/buildlog_ubuntu-natty-armel.libisofs_0.6.32-2ubuntu1_FAILEDTOBUILD.txt.gz>.

This is also reproducible with the current gcc-4.5-arm-linux-gnueabi package, which is built against gcc-4.5 4.5.2-3ubuntu3. It's reproducible with both -O1 and -O2. I'll attach a reduced test case shortly for the ICE.

[Steve Langasek (vorlon)]

Reduced test case (preprocessed source) attached. Bug is reproducible with either -O2 or -O1, with or without -g; can be worked around by setting either -O0 or -marm.

[Steve Langasek (vorlon)]

Last successful in-archive build of libisofs on armel was in August 2010; package ftbfs in the same rebuild test on Jan 14, using gcc-4.5 4.5.2-1ubuntu6.

http://launchpadlibrarian.net/62501839/buildlog_ubuntu-natty-armel.libisofs_0.6.32-2_FAILEDTOBUILD.txt.gz

[Launchpad Janitor (janitor)]

This bug was fixed in the package libisofs - 0.6.32-2ubuntu2

---------------
libisofs (0.6.32-2ubuntu2) natty; urgency=low

  * debian/rules: when building on armel or armhf, build with -O0 to work
    around a gcc bug. LP: #742961.
 -- Steve Langasek <email address hidden> Fri, 25 Mar 2011 23:50:47 -0700

[Chung-Lin Tang (cltang)]

This should be another case of LP #689887.