18 lines
499 B
Plaintext
18 lines
499 B
Plaintext
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AC_DEFUN([AC_CHECK_CXX_ARGUMENT], [
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AC_MSG_CHECKING([if ${CXX-g++} supports argument $1])
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OLD_CXX_FLAGS=$CXXFLAGS
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CXXFLAGS="$1 $CXXFLAGS"
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AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM([], [])],
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[AC_MSG_RESULT(yes)
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if test "x$EXTRA_CXXFLAGS" = x; then
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EXTRA_CXXFLAGS="$1"
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AC_SUBST([EXTRA_CXXFLAGS])
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else
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EXTRA_CXXFLAGS="$1 $EXTRA_CXXFLAGS"
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fi
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ifelse([$2], , :, [$2])],
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[AC_MSG_RESULT([no])
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ifelse([$3], , :, [$3])])
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CXXFLAGS=$OLD_CXX_FLAGS])
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