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doc: Clarify that -fstack-reuse=all bugs exist on all versions of GCC

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pull/28105/head
MarcoFalke 1 year ago
parent fd69ffbbfb
commit fabb419a3c
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1 changed files with 2 additions and 3 deletions
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configure.ac
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@ -941,9 +941,8 @@ if test "$TARGET_OS" != "windows"; then
AX_CHECK_COMPILE_FLAG([-fPIC], [PIC_FLAGS="-fPIC"]) AX_CHECK_COMPILE_FLAG([-fPIC], [PIC_FLAGS="-fPIC"])
fi fi
dnl Versions of gcc prior to 12.1 (commit dnl Currently all versions of gcc are subject to a class of bugs, see the
dnl https://github.com/gcc-mirror/gcc/commit/551aa75778a4c5165d9533cd447c8fc822f583e1) dnl gccbug_90348 test case (only reproduces on GCC 11 and earlier) and the related bugs of
dnl are subject to a bug, see the gccbug_90348 test case and
dnl https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90348. To work around that, set dnl https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90348. To work around that, set
dnl -fstack-reuse=none for all gcc builds. (Only gcc understands this flag) dnl -fstack-reuse=none for all gcc builds. (Only gcc understands this flag)
AX_CHECK_COMPILE_FLAG([-fstack-reuse=none], [HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fstack-reuse=none"]) AX_CHECK_COMPILE_FLAG([-fstack-reuse=none], [HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fstack-reuse=none"])

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