https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118802
Bug ID: 118802
Summary: [15 regression] Bootstrap comparison failure on
libphobos/libdruntime/core/internal/gc/impl/conservati
ve/gc.o
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Keywords: build
Severity: normal
Priority: P3
Component: other
Assignee: unassigned at gcc dot gnu.org
Reporter: sjames at gcc dot gnu.org
Target Milestone: ---
r15-7359-g64c66f5bce60fc built fine, r15-7445-g5753f459444fa6 fails.
```
make[3]: Entering directory
'/var/tmp/portage.notmp/portage/sys-devel/gcc-15.0.9999/work/build'
rm -f stage_current
make[3]: Leaving directory
'/var/tmp/portage.notmp/portage/sys-devel/gcc-15.0.9999/work/build'
Comparing stages 2 and 3
Bootstrap comparison failure!
x86_64-pc-linux-gnu/32/libphobos/libdruntime/core/internal/gc/impl/conservative/gc.o
differs
x86_64-pc-linux-gnu/libphobos/libdruntime/core/internal/gc/impl/conservative/.libs/gc.o
differs
make[2]: *** [Makefile:29840: compare] Error 1
make[1]: *** [Makefile:29820: stage3-bubble] Error 2
make: *** [Makefile:29894: bootstrap-lean] Error 2
* ERROR: sys-devel/gcc-15.0.9999::gentoo failed (compile phase):
```
```
$ ./work/build/stage3-gcc/xgcc -v
Configured with:
/var/tmp/portage.notmp/portage/sys-devel/gcc-15.0.9999/work/gcc-15.0.9999/configure
--host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr
--bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/15
--includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/15/include
--datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/15
--mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/15/man
--infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/15/info
--with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/15/include/g++-v15
--disable-silent-rules --disable-dependency-tracking
--with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/15/python
--enable-objc-gc --enable-languages=c,c++,d,go,objc,obj-c++,fortran,ada
--enable-obsolete --enable-secureplt --disable-werror --with-system-zlib
--enable-nls --without-included-gettext --disable-libunwind-exceptions
--enable-checking=yes,extra,rtl --with-bugurl=https://bugs.gentoo.org/
--with-pkgversion='Gentoo Hardened 15.0.9999 p, commit
509a72e881767d24aee2865435c1e7851d46abd3' --with-gcc-major-version-only
--enable-libstdcxx-time --enable-lto --disable-libstdcxx-pch --enable-shared
--enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu
--enable-multilib --with-multilib-list=m32,m64 --disable-fixed-point
--enable-targets=all --enable-offload-defaulted
--enable-offload-targets=nvptx-none --enable-libgomp --disable-libssp
--enable-libada --enable-cet --disable-systemtap --disable-valgrind-annotations
--disable-vtable-verify --disable-libvtv --with-zstd --with-isl
--disable-isl-version-check --enable-default-pie --enable-host-pie
--enable-host-bind-now --enable-default-ssp --disable-fixincludes
--with-build-config=bootstrap-cet
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 15.0.1 20250208 (experimental)
5753f459444fa61a93d23325cd59467dc1838eef (Gentoo Hardened 15.0.9999 p, commit
509a72e881767d24aee2865435c1e7851d46abd3)
```
