X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Finet_ntop.m4;h=7ffbbda45be41e9814d6c044879ac0b6ef72a8bc;hb=fa1340adb603e76d7cadfc6d1d6b68ea97e7f7b0;hp=fea429e74bdb7d4a78e900357c6353cbe1defe2e;hpb=f74678545ef70a55cc08b1b06380fba3116ebf4a;p=gnulib.git

diff --git a/m4/inet_ntop.m4 b/m4/inet_ntop.m4
index fea429e74..7ffbbda45 100644
--- a/m4/inet_ntop.m4
+++ b/m4/inet_ntop.m4
@@ -12,5 +12,7 @@ AC_DEFUN([gl_INET_NTOP],
 
 # Prerequisites of lib/inet_ntop.h and lib/inet_ntop.c.
 AC_DEFUN([gl_PREREQ_INET_NTOP], [
+  AC_CHECK_HEADERS_ONCE(sys/types.h arpa/inet.h)
+  AC_CHECK_DECLS([inet_ntop],,,[#include <arpa/inet.h>])
   AC_REQUIRE([gl_SOCKET_FAMILIES])
 ])