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-rw-r--r--acinclude.m42
1 files changed, 1 insertions, 1 deletions
diff --git a/acinclude.m4 b/acinclude.m4
index 6b02776..e9690a7 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -98,7 +98,7 @@ AC_DEFUN([CARES_CHECK_LIB_XNET], [
AC_LANG_SOURCE([[
int main (void)
{
-#if defined(__hpux) && defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE >= 600)
+#if defined(__hpux) && defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE >= 600)
return 0;
#elif defined(__hpux) && defined(_XOPEN_SOURCE_EXTENDED)
return 0;