Add missing autoconf test for sysctlbyname()

uses specific mib[] tokens iff it is available, but configure wasn't
testing for it to be available.

https://bugzilla.gnome.org/show_bug.cgi?id=689324

diff --git a/configure.ac b/configure.ac
index d5b5376..0304dad 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -901,6 +901,7 @@ AC_CHECK_HEADERS([sys/mount.h sys/sysctl.h], [], [],
  #include <sys/param.h>
  #endif
 ])
+AC_CHECK_FUNCS(sysctlbyname)
 
 AC_CHECK_HEADERS([xlocale.h])