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[0.26] Backport 5eb82d57 #5

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May 19, 2025
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[0.26] Backport 5eb82d57 #5

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11 changes: 6 additions & 5 deletions configure.ac
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Original file line number Diff line number Diff line change
Expand Up @@ -526,6 +526,12 @@ fi
dnl Don't allow extended (non-ASCII) symbols in identifiers. This is easier for code review.
AX_CHECK_COMPILE_FLAG([-fno-extended-identifiers], [CORE_CXXFLAGS="$CORE_CXXFLAGS -fno-extended-identifiers"], [], [$CXXFLAG_WERROR])

dnl Currently all versions of gcc are subject to a class of bugs, see the
dnl gccbug_90348 test case (only reproduces on GCC 11 and earlier) and
dnl https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111843. To work around that, set
dnl -fstack-reuse=none for all gcc builds. (Only gcc understands this flag)
AX_CHECK_COMPILE_FLAG([-fstack-reuse=none], [CORE_CXXFLAGS="$CORE_CXXFLAGS -fstack-reuse=none"])

enable_arm_crc=no
enable_arm_shani=no
enable_sse42=no
Expand Down Expand Up @@ -981,11 +987,6 @@ if test "$TARGET_OS" != "windows"; then
AX_CHECK_COMPILE_FLAG([-fPIC], [PIC_FLAGS="-fPIC"])
fi

dnl Currently all versions of gcc are subject to a class of bugs, see the
dnl gccbug_90348 test case (only reproduces on GCC 11 and earlier) and the related bugs of
dnl https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90348. To work around that, set
dnl -fstack-reuse=none for all gcc builds. (Only gcc understands this flag)
AX_CHECK_COMPILE_FLAG([-fstack-reuse=none], [HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fstack-reuse=none"])
if test "$use_hardening" != "no"; then
use_hardening=yes
AX_CHECK_COMPILE_FLAG([-Wstack-protector], [HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -Wstack-protector"])
Expand Down