X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2Fruntime%2Fbacktrace.c;h=5585122c871368d269e34133473ca7d10772c984;hb=961c6bf2eda5d492d5dbb7e275fe4e0931f7adf8;hp=c618ca7b67615f20a1200f3b03e4d23b9f251dcb;hpb=b727b3bff6f2a989e8e20e199945c2bf768214a9;p=sbcl.git

diff --git a/src/runtime/backtrace.c b/src/runtime/backtrace.c
index c618ca7..5585122 100644
--- a/src/runtime/backtrace.c
+++ b/src/runtime/backtrace.c
@@ -13,6 +13,9 @@
  * files for more information.
  */
 
+/* needed if we want dladdr() and Dl_Info from glibc's dlfcn.h */
+#define _GNU_SOURCE
+
 #include <stdio.h>
 #include <signal.h>
 #include "sbcl.h"
@@ -34,11 +37,7 @@
 #include "thread.h"
 
 #ifdef LISP_FEATURE_OS_PROVIDES_DLADDR
-# ifndef __USE_GNU
-/* __USE_GNU needed if we want dladdr() and Dl_Info from glibc. */
-# define __USE_GNU
-# endif
-# include "dlfcn.h"
+# include <dlfcn.h>
 #endif
 
 #if !(defined(LISP_FEATURE_X86) || defined(LISP_FEATURE_X86_64))