1dnl Id
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