--- a/src/netlib.c	2016-04-11 17:16:12.429260405 -0700
+++ b/src/netlib.c.fixed	2016-04-11 17:15:28.112695716 -0700
@@ -3959,8 +3959,12 @@
 #ifdef WIN32
 __forceinline void demo_interval_display(double actual_interval)
 #else
+#ifdef __GNUC_STDC_INLINE__
+  extern inline void demo_interval_display(double actual_interval)
+#else
   inline void demo_interval_display(double actual_interval)
 #endif
+#endif
 {
   static int count = 0;
   struct timeval now;
@@ -4026,8 +4030,12 @@
    inline directive has to appear in netlib.h... */
 void demo_interval_tick(uint32_t units)
 #else
+#ifdef __GNUC_STDC_INLINE__
+  extern inline void demo_interval_tick(uint32_t units)
+#else
   inline void demo_interval_tick(uint32_t units)
 #endif
+#endif
 {
   double actual_interval = 0.0;