patch 8.2.0594: MS-Windows: cannot build with WINVER set to 0x0501v8.2.0594

Problem:    MS-Windows: cannot build with WINVER set to 0x0501.
Solution:   Only use inet_ntop() when available. (Ozaki Kiichi, closes #5946)

1 files changed, 11 insertions, 0 deletions

diff --git a/src/auto/configure b/src/auto/configure
index 33bf66322..e72cf70cd 100755
--- a/src/auto/configure
+++ b/src/auto/configure
@@ -7872,6 +7872,17 @@ $as_echo "$vim_cv_ipv6_networking" >&6; }
   if test "x$vim_cv_ipv6_networking" = "xyes"; then
     $as_echo "#define FEAT_IPV6 1" >>confdefs.h
 
+    for ac_func in inet_ntop
+do :
+  ac_fn_c_check_func "$LINENO" "inet_ntop" "ac_cv_func_inet_ntop"
+if test "x$ac_cv_func_inet_ntop" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_INET_NTOP 1
+_ACEOF
+
+fi
+done
+
   else
         { $as_echo "$as_me:${as_lineno-$LINENO}: checking for gethostbyname in -lnsl" >&5
 $as_echo_n "checking for gethostbyname in -lnsl... " >&6; }