need-proto.m4 revision 178825
1dnl $Id: need-proto.m4 14166 2004-08-26 12:35:42Z joda $ 2dnl 3dnl 4dnl Check if we need the prototype for a function 5dnl 6 7dnl AC_NEED_PROTO(includes, function) 8 9AC_DEFUN([AC_NEED_PROTO], [ 10if test "$ac_cv_func_$2+set" != set -o "$ac_cv_func_$2" = yes; then 11AC_CACHE_CHECK([if $2 needs a prototype], ac_cv_func_$2_noproto, 12AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[$1 13struct foo { int foo; } xx; 14extern int $2 (struct foo*);]],[[$2(&xx)]])], 15[eval "ac_cv_func_$2_noproto=yes"], 16[eval "ac_cv_func_$2_noproto=no"])) 17if test "$ac_cv_func_$2_noproto" = yes; then 18 AC_DEFINE(AS_TR_CPP(NEED_[]$2[]_PROTO), 1, 19 [define if the system is missing a prototype for $2()]) 20fi 21fi 22]) 23