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110 lines
3.2 KiB
110 lines
3.2 KiB
15 years ago
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dnl GNOME_COMPILE_WARNINGS
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dnl Turn on many useful compiler warnings
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dnl For now, only works on GCC
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AC_DEFUN([GNOME_COMPILE_WARNINGS],[
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AC_ARG_ENABLE(compile-warnings,
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[ --enable-compile-warnings=[no/minimum/yes] Turn on compiler warnings.],,enable_compile_warnings=minimum)
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AC_MSG_CHECKING(what warning flags to pass to the C compiler)
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warnCFLAGS=
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if test "x$GCC" != xyes; then
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enable_compile_warnings=no
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fi
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if test "x$enable_compile_warnings" != "xno"; then
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if test "x$GCC" = "xyes"; then
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case " $CFLAGS " in
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*[\ \ ]-Wall[\ \ ]*) ;;
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*) warnCFLAGS="-Wall -Wunused" ;;
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esac
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## -W is not all that useful. And it cannot be controlled
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## with individual -Wno-xxx flags, unlike -Wall
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if test "x$enable_compile_warnings" = "xyes"; then
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warnCFLAGS="$warnCFLAGS -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith"
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fi
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fi
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fi
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AC_MSG_RESULT($warnCFLAGS)
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AC_ARG_ENABLE(iso-c,
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[ --enable-iso-c Try to warn if code is not ISO C ],,
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enable_iso_c=no)
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AC_MSG_CHECKING(what language compliance flags to pass to the C compiler)
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complCFLAGS=
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if test "x$enable_iso_c" != "xno"; then
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if test "x$GCC" = "xyes"; then
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case " $CFLAGS " in
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*[\ \ ]-ansi[\ \ ]*) ;;
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*) complCFLAGS="$complCFLAGS -ansi" ;;
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esac
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case " $CFLAGS " in
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*[\ \ ]-pedantic[\ \ ]*) ;;
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*) complCFLAGS="$complCFLAGS -pedantic" ;;
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esac
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fi
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fi
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AC_MSG_RESULT($complCFLAGS)
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if test "x$cflags_set" != "xyes"; then
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CFLAGS="$CFLAGS $warnCFLAGS $complCFLAGS"
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cflags_set=yes
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AC_SUBST(cflags_set)
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fi
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])
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dnl For C++, do basically the same thing.
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AC_DEFUN([GNOME_CXX_WARNINGS],[
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AC_ARG_ENABLE(cxx-warnings,
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[ --enable-cxx-warnings=[no/minimum/yes] Turn on compiler warnings.],,enable_cxx_warnings=minimum)
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AC_MSG_CHECKING(what warning flags to pass to the C++ compiler)
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warnCXXFLAGS=
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if test "x$GCC" != xyes; then
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enable_compile_warnings=no
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fi
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if test "x$enable_cxx_warnings" != "xno"; then
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if test "x$GCC" = "xyes"; then
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case " $CXXFLAGS " in
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*[\ \ ]-Wall[\ \ ]*) ;;
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*) warnCXXFLAGS="-Wall -Wno-unused" ;;
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esac
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## -W is not all that useful. And it cannot be controlled
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## with individual -Wno-xxx flags, unlike -Wall
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if test "x$enable_cxx_warnings" = "xyes"; then
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warnCXXFLAGS="$warnCXXFLAGS -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wshadow -Woverloaded-virtual"
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fi
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fi
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fi
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AC_MSG_RESULT($warnCXXFLAGS)
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AC_ARG_ENABLE(iso-cxx,
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[ --enable-iso-cxx Try to warn if code is not ISO C++ ],,
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enable_iso_cxx=no)
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AC_MSG_CHECKING(what language compliance flags to pass to the C++ compiler)
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complCXXFLAGS=
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if test "x$enable_iso_cxx" != "xno"; then
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if test "x$GCC" = "xyes"; then
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case " $CXXFLAGS " in
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*[\ \ ]-ansi[\ \ ]*) ;;
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*) complCXXFLAGS="$complCXXFLAGS -ansi" ;;
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esac
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case " $CXXFLAGS " in
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*[\ \ ]-pedantic[\ \ ]*) ;;
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*) complCXXFLAGS="$complCXXFLAGS -pedantic" ;;
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esac
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fi
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fi
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AC_MSG_RESULT($complCXXFLAGS)
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if test "x$cxxflags_set" != "xyes"; then
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CXXFLAGS="$CXXFLAGS $warnCXXFLAGS $complCXXFLAGS"
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cxxflags_set=yes
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AC_SUBST(cxxflags_set)
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fi
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])
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