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doc: Clarify that -fstack-reuse=all bugs exist on all versions of GCC
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@ -941,9 +941,8 @@ if test "$TARGET_OS" != "windows"; then
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AX_CHECK_COMPILE_FLAG([-fPIC], [PIC_FLAGS="-fPIC"])
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AX_CHECK_COMPILE_FLAG([-fPIC], [PIC_FLAGS="-fPIC"])
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fi
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fi
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dnl Versions of gcc prior to 12.1 (commit
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dnl Currently all versions of gcc are subject to a class of bugs, see the
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dnl https://github.com/gcc-mirror/gcc/commit/551aa75778a4c5165d9533cd447c8fc822f583e1)
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dnl gccbug_90348 test case (only reproduces on GCC 11 and earlier) and the related bugs of
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dnl are subject to a bug, see the gccbug_90348 test case and
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dnl https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90348. To work around that, set
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dnl https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90348. To work around that, set
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dnl -fstack-reuse=none for all gcc builds. (Only gcc understands this flag)
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dnl -fstack-reuse=none for all gcc builds. (Only gcc understands this flag)
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AX_CHECK_COMPILE_FLAG([-fstack-reuse=none], [HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fstack-reuse=none"])
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AX_CHECK_COMPILE_FLAG([-fstack-reuse=none], [HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fstack-reuse=none"])
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