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authorRaja R Harinath <harinath@src.gnome.org>1998-08-21 05:23:52 +0800
committerRaja R Harinath <harinath@src.gnome.org>1998-08-21 05:23:52 +0800
commitbfdb2a9614064654f7ae6292314f1a7f00ffdf2d (patch)
tree62eb15f89dbf6321d047170c62f8d411183562bf /macros/compiler-flags.m4
parent6158ea365fc20a777a444011e92713fa3168bdda (diff)
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New file. Defines the GNOME_COMPILER_WARNINGS macro. Add
* compiler-flags.m4: New file. Defines the GNOME_COMPILER_WARNINGS macro. * autogen.sh (conf_flags): Add `--enable-compile-warnings' to list of flags passed to `configure'. * Makefile.am (MACROS): Add compiler-flags.m4. svn path=/trunk/; revision=327
Diffstat (limited to 'macros/compiler-flags.m4')
-rw-r--r--macros/compiler-flags.m445
1 files changed, 45 insertions, 0 deletions
diff --git a/macros/compiler-flags.m4 b/macros/compiler-flags.m4
new file mode 100644
index 0000000000..953e8ebb5b
--- /dev/null
+++ b/macros/compiler-flags.m4
@@ -0,0 +1,45 @@
+dnl GNOME_COMPILE_WARNINGS
+dnl Turn on many useful compiler warnings
+dnl For now, only works on GCC
+AC_DEFUN([GNOME_COMPILE_WARNINGS],[
+ AC_ARG_ENABLE(compile-warnings,
+ [ --enable-compile-warnings=[no/minimum/yes] Turn on compiler warnings.],,enable_compile_warnings=minimum)
+
+ AC_MSG_CHECKING(what warning flags to pass to the C compiler)
+ warnCFLAGS=
+ if test "x$enable_compile_warnings" != "xno"; then
+ if test "x$GCC" = "xyes"; then
+ case " $CFLAGS " in
+ *[\ \ ]-Wall[\ \ ]*) ;;
+ *) warnCFLAGS="-Wall" ;;
+ esac
+
+ if test "x$enable_compile_warnings" = "xyes"; then
+ warnCFLAGS="$warnCFLAGS -W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith"
+ fi
+ fi
+ fi
+ AC_MSG_RESULT($warnCFLAGS)
+
+ AC_ARG_ENABLE(iso-c,
+ [ --enable-iso-c Try to warn if code is not ISO C ],,
+ enable_iso_c=no)
+
+ AC_MSG_CHECKING(what language compliance flags to pass to the C compiler)
+ complCFLAGS=
+ if test "x$enable_iso_c" != "xno"; then
+ if test "x$GCC" = "xyes"; then
+ case " $CFLAGS " in
+ *[\ \ ]-ansi[\ \ ]*) ;;
+ *) complCFLAGS="$complCFLAGS -ansi" ;;
+ esac
+
+ case " $CFLAGS " in
+ *[\ \ ]-pedantic[\ \ ]*) ;;
+ *) complCFLAGS="$complCFLAGS -pedantic" ;;
+ esac
+ fi
+ fi
+ AC_MSG_RESULT($complCFLAGS)
+ CFLAGS="$CFLAGS $warnCFLAGS $complCFLAGS"
+])