+++ /dev/null
-
-
-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=yes)
-
- AC_MSG_CHECKING(the warning flags for this compiler)
- warnCFLAGS=
- if test "x$GCC" = "xyes"; then
- case " $CFLAGS " in
- *-Wall*) ;;
- *) warnCFLAGS="-g -Wall -Wunused" ;;
- esac
-
- ## -W is not all that useful. And it cannot be controlled
- ## with individual -Wno-xxx flags, unlike -Wall
- if test "x$enable_compile_warnings" = "xyes"; then
- warnCFLAGS="$warnCFLAGS -Wmissing-prototypes -Wmissing-declarations \
- -finline-functions -Wshadow -Wpointer-arith -Wchar-subscripts \
- -Wformat=2 -Wno-unused-variable -Wno-unused-function -Wwrite-strings -Werror"
- fi
- fi
-
- AC_MSG_RESULT($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(the language compliance flags for this compiler)
- complCFLAGS=
- if test "x$GCC" = "xyes"; then
- case " $CFLAGS " in
- *-ansi*) ;;
- *) complCFLAGS="$complCFLAGS -ansi" ;;
- esac
-
- case " $CFLAGS " in
- *-pedantic*) ;;
- *) complCFLAGS="$complCFLAGS -pedantic" ;;
- esac
- fi
- AC_MSG_RESULT($complCFLAGS)
-
-
- AC_MSG_CHECKING(the optimization flags for this compiler)
- optCFLAGS=
- if test "x$GCC" = "xyes" ; then
- optCFLAGS="-ffast-math -funroll-loops -fno-strict-aliasing"
- case " $CFLAGS " in
- *-O*) ;;
- *) optCFLAGS="-03" ;;
- esac
- fi
- AC_MSG_RESULT($complCFLAGS)
-
- # Take the right flags
- if test "x$cflags_set" != "xyes" ; then
- if test "x$enable_iso_c" != "xno"; then
- CFLAGS="$CFLAGS $complCFLAGS"
- fi
- if test "x$enable_compile_warnings" != "xno" ; then
- CFLAGS="$CFLAGS $warnCFLAGS"
- fi
-
- cflags_set=yes
- AC_SUBST(cflags_set)
- fi
-])
