freebsd-nq/config/user-frame-larger-than.m4

dnl #
dnl # Check if gcc supports -Wframe-larger-than=<size> option.
dnl #
AC_DEFUN([ZFS_AC_CONFIG_USER_FRAME_LARGER_THAN], [
	AC_MSG_CHECKING([for -Wframe-larger-than=<size> support])

	saved_flags="$CFLAGS"
	CFLAGS="$CFLAGS -Wframe-larger-than=1024"

	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])],
	[
		FRAME_LARGER_THAN=-Wframe-larger-than=1024
		AC_MSG_RESULT([yes])
	],
	[
		FRAME_LARGER_THAN=
		AC_MSG_RESULT([no])
	])

	CFLAGS="$saved_flags"
        AC_SUBST([FRAME_LARGER_THAN])
])
Add build system Add autoconf style build infrastructure to the ZFS tree. This includes autogen.sh, configure.ac, m4 macros, some scripts/*, and makefiles for all the core ZFS components. 2010-08-26 18:22:58 +00:00			`dnl #`
			`dnl # Check if gcc supports -Wframe-larger-than=<size> option.`
			`dnl #`
			`AC_DEFUN([ZFS_AC_CONFIG_USER_FRAME_LARGER_THAN], [`
			`AC_MSG_CHECKING([for -Wframe-larger-than=<size> support])`

			`saved_flags="$CFLAGS"`
			`CFLAGS="$CFLAGS -Wframe-larger-than=1024"`

config: compile test rather than run test When testing compiler flags, we only need to do compile test. Otherwise, configure will fail with "configure: error: cannot run test program while cross compiling" when cross compiling. Signed-off-by: Chunwei Chen <tuxoko@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #2191 2014-03-15 06:24:40 +00:00			`AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])],`
Add build system Add autoconf style build infrastructure to the ZFS tree. This includes autogen.sh, configure.ac, m4 macros, some scripts/*, and makefiles for all the core ZFS components. 2010-08-26 18:22:58 +00:00			`[`
			`FRAME_LARGER_THAN=-Wframe-larger-than=1024`
			`AC_MSG_RESULT([yes])`
			`],`
			`[`
			`FRAME_LARGER_THAN=`
			`AC_MSG_RESULT([no])`
			`])`

			`CFLAGS="$saved_flags"`
			`AC_SUBST([FRAME_LARGER_THAN])`
			`])`