And for my last trick... make sure that if gethostbyname_r is exported by a library that it is used.

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@77865 65c4cc65-6c06-0410-ace0-fbb531ad65f3

configure

@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.ac Revision: 74572 .
+# From configure.ac Revision: 77863 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.61.
 #
@@ -14643,6 +14643,90 @@ done
 
 
 # some systems already have gethostbyname_r so we don't need to build ours in main/utils.c
+{ echo "$as_me:$LINENO: checking for library containing gethostbyname_r" >&5
+echo $ECHO_N "checking for library containing gethostbyname_r... $ECHO_C" >&6; }
+if test "${ac_cv_search_gethostbyname_r+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char gethostbyname_r ();
+int
+main ()
+{
+return gethostbyname_r ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' socket nsl; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext &&
+       $as_test_x conftest$ac_exeext; then
+  ac_cv_search_gethostbyname_r=$ac_res
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext
+  if test "${ac_cv_search_gethostbyname_r+set}" = set; then
+  break
+fi
+done
+if test "${ac_cv_search_gethostbyname_r+set}" = set; then
+  :
+else
+  ac_cv_search_gethostbyname_r=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ echo "$as_me:$LINENO: result: $ac_cv_search_gethostbyname_r" >&5
+echo "${ECHO_T}$ac_cv_search_gethostbyname_r" >&6; }
+ac_res=$ac_cv_search_gethostbyname_r
+if test "$ac_res" != no; then
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+fi
+
+
 { echo "$as_me:$LINENO: checking for gethostbyname_r with 6 arguments" >&5
 echo $ECHO_N "checking for gethostbyname_r with 6 arguments... $ECHO_C" >&6; }
 cat >conftest.$ac_ext <<_ACEOF

configure.ac

@@ -262,6 +262,8 @@ AC_FUNC_VPRINTF
 AC_CHECK_FUNCS([asprintf atexit bzero dup2 endpwent floor ftruncate getcwd gethostbyname gethostname getloadavg gettimeofday inet_ntoa isascii localtime_r memchr memmove memset mkdir munmap pow putenv re_comp regcomp rint select setenv socket sqrt strcasecmp strcasestr strchr strcspn strdup strerror strlcat strlcpy strncasecmp strndup strnlen strrchr strsep strspn strstr strtol strtoq unsetenv utime vasprintf])
 
 # some systems already have gethostbyname_r so we don't need to build ours in main/utils.c
+AC_SEARCH_LIBS(gethostbyname_r, [socket nsl])
+
 AC_MSG_CHECKING(for gethostbyname_r with 6 arguments)
 AC_LINK_IFELSE(
         AC_LANG_PROGRAM([#include <netdb.h>],