X-Git-Url: http://sjero.net/git/?p=wget;a=blobdiff_plain;f=m4%2Fglibc21.m4;fp=m4%2Fglibc21.m4;h=93fbf4745922719a47db7f0300eb1f202310eaf6;hp=0000000000000000000000000000000000000000;hb=3419874b2109f62cf21d63c87e45ae6d819fc243;hpb=f5a5cfad4901ad4bafb29b9f1221c02c47a03ffa

diff --git a/m4/glibc21.m4 b/m4/glibc21.m4
new file mode 100644
index 00000000..93fbf474
--- /dev/null
+++ b/m4/glibc21.m4
@@ -0,0 +1,30 @@
+# glibc21.m4 serial 4
+dnl Copyright (C) 2000-2002, 2004, 2008 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+# Test for the GNU C Library, version 2.1 or newer.
+# From Bruno Haible.
+
+AC_DEFUN([gl_GLIBC21],
+  [
+    AC_CACHE_CHECK([whether we are using the GNU C Library 2.1 or newer],
+      [ac_cv_gnu_library_2_1],
+      [AC_EGREP_CPP([Lucky GNU user],
+	[
+#include <features.h>
+#ifdef __GNU_LIBRARY__
+ #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || (__GLIBC__ > 2)
+  Lucky GNU user
+ #endif
+#endif
+	],
+	[ac_cv_gnu_library_2_1=yes],
+	[ac_cv_gnu_library_2_1=no])
+      ]
+    )
+    AC_SUBST([GLIBC21])
+    GLIBC21="$ac_cv_gnu_library_2_1"
+  ]
+)