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-rw-r--r--configure.ac5
1 files changed, 4 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac
index 02587e8d7..ec8f50d2d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3969,7 +3969,10 @@ AC_LINK_IFELSE([AC_LANG_PROGRAM([[
3969#include <arpa/nameser.h> 3969#include <arpa/nameser.h>
3970#include <resolv.h> 3970#include <resolv.h>
3971extern struct __res_state _res; 3971extern struct __res_state _res;
3972 ]], [[ ]])], 3972 ]], [[
3973struct __res_state *volatile p = &_res; /* force resolution of _res */
3974return 0;
3975 ]],)],
3973 [AC_MSG_RESULT([yes]) 3976 [AC_MSG_RESULT([yes])
3974 AC_DEFINE([HAVE__RES_EXTERN], [1], 3977 AC_DEFINE([HAVE__RES_EXTERN], [1],
3975 [Define if you have struct __res_state _res as an extern]) 3978 [Define if you have struct __res_state _res as an extern])