dnl as-compiler-flag.m4 0.1.0

 dnl autostars m4 macro for detection of compiler flags

 dnl David Schleef <ds@schleef.org>

 dnl $Id: as-compiler-flag.m4,v 1.1.1.1 2005/08/26 00:42:44 andrunko Exp $

 dnl AS_COMPILER_FLAG(CFLAGS, ACTION-IF-ACCEPTED, [ACTION-IF-NOT-ACCEPTED])

 dnl Tries to compile with the given CFLAGS.

 dnl Runs ACTION-IF-ACCEPTED if the compiler can compile with the flags,

 dnl and ACTION-IF-NOT-ACCEPTED otherwise.

 AC_DEFUN([AS_COMPILER_FLAG],

 [

   AC_MSG_CHECKING([to see if compiler understands $1])

   save_CFLAGS="$CFLAGS"

   CFLAGS="$CFLAGS $1"

   AC_TRY_COMPILE([ ], [], [flag_ok=yes], [flag_ok=no])

   CFLAGS="$save_CFLAGS"

   if test "X$flag_ok" = Xyes ; then

     $2

     true

   else

     $3

     true

   fi

   AC_MSG_RESULT([$flag_ok])

 ])