[Bug bootstrap/126526] [16, X86] Bootstrap comparison failure!

"jakub at gcc dot gnu.org via Gcc-bugs" <[email protected]> Mon, 03 Aug 2026 17:35:28 +0000
Newsgroups gmane.comp.gcc.bugs
Message-ID <[email protected]/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D126526

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
The usual way people bootstrap is using boostrap-debug.mk and that builds
stage2 without debug info and stage3 with debug info, so a comparison probl=
em
like that can't happen.  I don't see --disable-bootstrap nor
--with-build-config=3D options used, so the only possibility why that would=
n't be
on (or unless using make profiledbootstrap -jN) is I think that toplevel
configure failed in
  case $BUILD_CONFIG in
  bootstrap-debug)
    if echo "int f (void) { return 0; }" > conftest.c &&
       ${CC} -c conftest.c &&
       mv conftest.o conftest.o.g0 &&
       ${CC} -c -g conftest.c &&
       mv conftest.o conftest.o.g &&
       ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/nu=
ll
2>&1; then
      :
    else
      BUILD_CONFIG=3D
    fi
    rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
    ;;
and selected an empty BUILD_CONFIG.=