Home | History | Annotate | Line # | Download | only in cf
proto-compat.m4 revision 1.1 
      1  1.1  elric dnl $Id: proto-compat.m4,v 1.1 2011/04/13 18:14:32 elric Exp $
      2  1.1  elric dnl
      3  1.1  elric dnl
      4  1.1  elric dnl Check if the prototype of a function is compatible with another one
      5  1.1  elric dnl
      6  1.1  elric 
      7  1.1  elric dnl AC_PROTO_COMPAT(includes, function, prototype)
      8  1.1  elric 
      9  1.1  elric AC_DEFUN([AC_PROTO_COMPAT], [
     10  1.1  elric AC_CACHE_CHECK([if $2 is compatible with system prototype],
     11  1.1  elric ac_cv_func_$2_proto_compat,
     12  1.1  elric AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[$1]],[[$3]])],
     13  1.1  elric [eval "ac_cv_func_$2_proto_compat=yes"],
     14  1.1  elric [eval "ac_cv_func_$2_proto_compat=no"]))
     15  1.1  elric define([foo], translit($2, [a-z], [A-Z])[_PROTO_COMPATIBLE])
     16  1.1  elric if test "$ac_cv_func_$2_proto_compat" = yes; then
     17  1.1  elric 	AC_DEFINE(foo, 1, [define if prototype of $2 is compatible with
     18  1.1  elric 	$3])
     19  1.1  elric fi
     20  1.1  elric undefine([foo])
     21  1.1  elric ])