20 lines
497 B
Plaintext
20 lines
497 B
Plaintext
dnl @synopsis MN_ADD_CXXFLAGS
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dnl
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dnl Add the given option to CXXFLAGS, if it doesn't break the compiler
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AC_DEFUN([MN_ADD_CXXFLAGS],
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[AC_MSG_CHECKING([if $CXX accepts $1])
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AC_LANG_ASSERT([C++])
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ac_add_cxxflags__old_cxxflags="$CXXFLAGS"
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CXXFLAGS="$1"
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AC_TRY_LINK([
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#include <cstdio>
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],
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[puts("Hello, World!"); return 0;],
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AC_MSG_RESULT([yes])
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CXXFLAGS="$ac_add_cxxflags__old_cxxflags $1",
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AC_MSG_RESULT([no])
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CXXFLAGS="$ac_add_cxxflags__old_cxxflags"
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)
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])# MN_ADD_CXXFLAGS
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