X-Git-Url: http://git.openwrt.org/?p=openwrt%2Fopenwrt.git;a=blobdiff_plain;f=tools%2Fmissing-macros%2Fsrc%2Fm4%2Fglibc21.m4;fp=tools%2Fmissing-macros%2Fsrc%2Fm4%2Fglibc21.m4;h=68ada9d4d5b844e3ff5be076ec1156c542f6630e;hp=0000000000000000000000000000000000000000;hb=93cb309a059da73578a77cf81ff74b15064ef244;hpb=9ecd83300705c1b672e8d36e06f936acf77c3858

diff --git a/tools/missing-macros/src/m4/glibc21.m4 b/tools/missing-macros/src/m4/glibc21.m4
new file mode 100644
index 0000000000..68ada9d4d5
--- /dev/null
+++ b/tools/missing-macros/src/m4/glibc21.m4
@@ -0,0 +1,30 @@
+# glibc21.m4 serial 4
+dnl Copyright (C) 2000-2002, 2004, 2008-2010 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"
+  ]
+)