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build: Disable -fcf-protection for mingw win32 #2377

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Nov 7, 2021
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build: Disable -fcf-protection for mingw win32 #2377

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10 changes: 9 additions & 1 deletion configure.ac
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Original file line number Diff line number Diff line change
Expand Up @@ -645,7 +645,15 @@ if test x$use_hardening != xno; then
AX_CHECK_COMPILE_FLAG([-Wstack-protector],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -Wstack-protector"])
AX_CHECK_COMPILE_FLAG([-fstack-protector-all],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fstack-protector-all"])

AX_CHECK_COMPILE_FLAG([-fcf-protection=full],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fcf-protection=full"])
case $host in
i686-w64-mingw32)
dnl Control-Flow Enforcement Technology (CET) does not appear to work for mingw for i686 (32-bit)
dnl When it is enabled, unstable executables result. Disable for now.
;;
*)
AX_CHECK_COMPILE_FLAG([-fcf-protection=full],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fcf-protection=full"])
;;
esac

case $host in
*mingw*)
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