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https://gitlab.com/mbunkus/mkvtoolnix.git
synced 2024-10-22 07:21:21 +00:00
38 lines
893 B
Plaintext
38 lines
893 B
Plaintext
AC_DEFUN([AX_COMPILER_IS_CLANG],[
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AC_CACHE_CHECK([compiler is clang], [ac_cv_compiler_is_clang], [
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if $CXX --version | grep -q -i 'clang.*llvm' ; then
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ac_cv_compiler_is_clang=yes
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else
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ac_cv_compiler_is_clang=no
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fi
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])
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])
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AC_DEFUN([AX_QUNUSED_ARGUMENTS_FLAG],[
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AC_CACHE_CHECK([for the compiler flag "-Qunused-arguments"], [ax_cv_qunused_arguments_flag],[
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CXXFLAGS_SAVED=$CXXFLAGS
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CXXFLAGS="$CXXFLAGS -Qunused-arguments"
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export CXXFLAGS
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AC_LANG_PUSH(C++)
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AC_TRY_COMPILE(
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[],
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[1;],
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[ax_cv_qunused_arguments_flag="yes"],
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[ax_cv_qunused_arguments_flag="no"])
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AC_LANG_POP
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CXXFLAGS="$CXXFLAGS_SAVED"
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])
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QUNUSED_ARGUMENTS=""
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if test x"$ax_cv_qunused_arguments_flag" = xyes ; then
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QUNUSED_ARGUMENTS="-Qunused-arguments"
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fi
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AC_SUBST(QUNUSED_ARGUMENTS)
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])
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AX_QUNUSED_ARGUMENTS_FLAG
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AX_COMPILER_IS_CLANG
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