[xine-cvs] CVS: gnome-xine/m4 _gxine.m4,NONE,1.1

[Darren S. <ds...@us...>]

Update of /cvsroot/xine/gnome-xine/m4
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv7795/m4

Added Files:
	_gxine.m4 
Log Message:
Define always_inline using the GCC 'always_inline' attribute (where supported).


--- NEW FILE: _gxine.m4 ---
dnl AC_C_ALWAYS_INLINE
dnl Define inline to something appropriate, including the new always_inline
dnl attribute from gcc 3.1
dnl Based on code by Michel LESPINASSE <wa...@zo...>
dnl This variant leaves inline unchanged and defines always_inline.
AC_DEFUN([AC_C_ALWAYS_INLINE],
    [AC_C_INLINE
    if test x"$GCC" = x"yes" -a x"$ac_cv_c_inline" = x"inline"; then
	AC_MSG_CHECKING([for always_inline])
	SAVE_CFLAGS="$CFLAGS"
	CFLAGS="$CFLAGS -Wall -Werror"
	AC_TRY_COMPILE([],[inline __attribute__ ((__always_inline__)) void f (void);],
	    [ac_cv_always_inline=yes],[ac_cv_always_inline=no])
	CFLAGS="$SAVE_CFLAGS"
	AC_MSG_RESULT([$ac_cv_always_inline])
	if test x"$ac_cv_always_inline" = x"yes"; then
	    always_inline='inline __attribute__ ((__always_inline__))'
	else
	    always_inline=inline
	fi
    else
	always_inline=''
    fi
    AC_DEFINE_UNQUOTED([always_inline],[$always_inline],[use to force inlining (if possible)])
    ])