mirror of
https://gitlab.com/mbunkus/mkvtoolnix.git
synced 2024-10-22 07:21:21 +00:00
c78177e99b
clang++ doesn't error out on unknown flags, it only spews warnings. Therefore AC_TRY_COMPILE is useless for detecting support for it.
57 lines
1.5 KiB
Plaintext
57 lines
1.5 KiB
Plaintext
QUNUSED_ARGUMENTS=""
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WNO_SELF_ASSIGN=""
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WNO_MISMATCHED_TAGS=""
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WLOGICAL_OP=""
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if test $COMPILER_TYPE = clang; then
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QUNUSED_ARGUMENTS="-Qunused-arguments"
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WNO_SELF_ASSIGN="-Wno-self-assign"
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WNO_MISMATCHED_TAGS="-Wno-mismatched-tags"
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FSTACK_PROTECTOR=""
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ac_save_CXXFLAGS="$CXXFLAGS"
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AC_LANG_PUSH(C++)
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CXXFLAGS="$ac_save_CXXFLAGS -Werror -Wno-inconsistent-missing-override"
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AC_TRY_COMPILE([],[],[ WNO_INCONSISTENT_MISSING_OVERRIDE="-Wno-inconsistent-missing-override" ],[])
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CXXFLAGS="$ac_save_CXXFLAGS -Werror -Wno-potentially-evaluated-expression"
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AC_TRY_COMPILE([],[],[ WNO_POTENTIALLY_EVALUATED_EXPRESSION="-Wno-potentially-evaluated-expression" ],[])
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if check_version 3.5.0 $COMPILER_VERSION ; then
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FSTACK_PROTECTOR="-fstack-protector-strong"
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fi
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AC_LANG_POP()
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CXXFLAGS="$ac_save_CXXFLAGS"
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AC_PATH_PROG(LLVM_LLD, "lld")
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else
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WNO_MAYBE_UNINITIALIZED="-Wno-maybe-uninitialized"
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FSTACK_PROTECTOR="-fstack-protector"
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if check_version 7.0.0 $COMPILER_VERSION ; then
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WSHADOW_COMPATIBLE_LOCAL="-Wshadow-compatible-local"
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fi
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if check_version 4.9.0 $COMPILER_VERSION ; then
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FSTACK_PROTECTOR="-fstack-protector-strong"
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fi
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if check_version 4.8.0 $COMPILER_VERSION ; then
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WLOGICAL_OP="-Wlogical-op"
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fi
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fi
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AC_SUBST(FSTACK_PROTECTOR)
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AC_SUBST(QUNUSED_ARGUMENTS)
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AC_SUBST(WNO_SELF_ASSIGN)
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AC_SUBST(WNO_MISMATCHED_TAGS)
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AC_SUBST(WLOGICAL_OP)
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AC_SUBST(WNO_INCONSISTENT_MISSING_OVERRIDE)
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AC_SUBST(WNO_POTENTIALLY_EVALUATED_EXPRESSION)
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AC_SUBST(WNO_MAYBE_UNINITIALIZED)
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AC_SUBST(WSHADOW_COMPATIBLE_LOCAL)
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AC_SUBST(LLVM_LLD)
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