https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96407
Mark Wielaard <mark at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |mark at gcc dot gnu.org
--- Comment #1 from Mark Wielaard <mark at gcc dot gnu.org> ---
Same for using -Wstack-usage= on the command line. It is one of the workarounds
needed for building elfutils with LTO enabled:
https://sourceware.org/pipermail/elfutils-devel/2020q2/002733.html
This version of elfutils handles debuginfo generated with GCC LTO
better and it can finally be build with GCC LTO itself:
export AR=gcc-ar RANLIB=gcc-ranlib NM=gcc-nm
./configure CFLAGS="-O2 -g -flto=auto -flto-partition=none \
-Wno-error=stack-usage=" \
CXXFLAGS="-O2 -g -flto=auto -flto-partition=none"
Note the two workaround. -flto-partition=none is needed to preserve the
symbol versioning. -Wno-error=stack-usage= is needed because LTO will
combine objects build with and without a -Wstack-usage limit.
