$NetBSD: patch-configure,v 1.1.44.1 2020/07/30 18:48:39 bsiegert Exp $

Check for res_ndestroy(), __res_init(), and __res_ndestroy().

--- configure.orig	2015-02-23 20:32:13.000000000 +0000
+++ configure
@@ -12971,6 +12971,184 @@ $as_echo "#define HAVE_RES_NINIT 1" >>co
 
 fi
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing res_ndestroy" >&5
+$as_echo_n "checking for library containing res_ndestroy... " >&6; }
+if ${ac_cv_search_res_ndestroy+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char res_ndestroy ();
+int
+main ()
+{
+return res_ndestroy ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' resolv; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi 
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_res_ndestroy=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_res_ndestroy+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_res_ndestroy+:} false; then :
+
+else
+  ac_cv_search_res_ndestroy=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_res_ndestroy" >&5
+$as_echo "$ac_cv_search_res_ndestroy" >&6; }
+ac_res=$ac_cv_search_res_ndestroy
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+$as_echo "#define HAVE_RES_NDESTROY 1" >>confdefs.h    
+
+fi
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing __res_ninit" >&5
+$as_echo_n "checking for library containing __res_ninit... " >&6; }
+if ${ac_cv_search___res_ninit+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char __res_ninit ();
+int
+main ()
+{
+return __res_ninit ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' resolv; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search___res_ninit=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search___res_ninit+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search___res_ninit+:} false; then :
+
+else
+  ac_cv_search___res_ninit=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search___res_ninit" >&5
+$as_echo "$ac_cv_search___res_ninit" >&6; }
+ac_res=$ac_cv_search___res_ninit
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+$as_echo "#define HAVE_RES_NINIT 1" >>confdefs.h
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing __res_ndestroy" >&5
+$as_echo_n "checking for library containing __res_ndestroy... " >&6; }
+if ${ac_cv_search___res_ndestroy+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS 
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char __res_ndestroy (); 
+int
+main ()
+{
+return __res_ndestroy ();
+  ; 
+  return 0;
+} 
+_ACEOF
+for ac_lib in '' resolv; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib 
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"  
+  fi  
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search___res_ndestroy=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search___res_ndestroy+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search___res_ndestroy+:} false; then :
+
+else
+  ac_cv_search___res_ndestroy=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search___res_ndestroy" >&5
+$as_echo "$ac_cv_search___res_ndestroy" >&6; }
+ac_res=$ac_cv_search___res_ndestroy
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+$as_echo "#define HAVE_RES_NDESTROY 1" >>confdefs.h
+
+fi
+
+
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for idn_free in -lidn" >&5
 $as_echo_n "checking for idn_free in -lidn... " >&6; }
 if ${ac_cv_lib_idn_idn_free+:} false; then :
