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| author | Stephan Bergmann <sbergman@redhat.com> | 2021-01-20 16:06:59 +0100 |
|---|---|---|
| committer | Stephan Bergmann <sbergman@redhat.com> | 2021-01-21 07:58:18 +0100 |
| commit | 067297cb7d81f442f8fed1bd40e52a109688320d (patch) | |
| tree | f67a3012eb5f1ba0cbe3353b5691a88243473648 /configure.ac | |
| parent | af34108d90bbbce90cf00c4b23961787599c7fa5 (diff) | |
Avoid Clang -Werror,-Wunused-command-line-argument
> [CXX] bridges/source/cpp_uno/gcc3_linux_aarch64/callvirtualfunction.cxx
> clang-12: error: argument unused during compilation: '-fno-stack-clash-protection' [-Werror,-Wunused-command-line-argument]
as seen e.g. on macOS 11.1 ARM64 when building against Clang 12 trunk. Clang
supports -fstack-clash-protection on
> $ clang --target=x86_64-unknown-linux-gnu -fstack-clash-protection -fsyntax-only -x c - </dev/null
but not on e.g.
> $ clang --target=aarch64-unknown-linux-gnu -fstack-clash-protection -fsyntax-only -x c - </dev/null
> clang-12: warning: argument unused during compilation: '-fstack-clash-protection' [-Wunused-command-line-argument]
or
> $ clang --target=arm64-apple-macosx11.0.0 -fstack-clash-protection -fsyntax-only -x c - </dev/null
> clang-12: warning: argument unused during compilation: '-fstack-clash-protection' [-Wunused-command-line-argument]
Change-Id: I98625bb7ed37bf00e97634c1c8d1f87fe3263af9
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/109719
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index f60c1ae5a199..53c393bbc067 100644 --- a/configure.ac +++ b/configure.ac @@ -6809,7 +6809,7 @@ HAVE_GCC_STACK_CLASH_PROTECTION= if test "$GCC" = "yes" -o "$COM_IS_CLANG" = TRUE; then AC_MSG_CHECKING([whether $CC_BASE supports -fstack-clash-protection]) save_CFLAGS=$CFLAGS - CFLAGS="$CFLAGS -fstack-clash-protection" + CFLAGS="$CFLAGS -Werror -fstack-clash-protection" AC_LINK_IFELSE( [AC_LANG_PROGRAM(, [[return 0;]])], [AC_MSG_RESULT([yes]); HAVE_GCC_STACK_CLASH_PROTECTION=TRUE], |