X-Git-Url: https://jxself.org/git/?p=super-star-trek.git;a=blobdiff_plain;f=c-version%2Fm4%2Fglibc21.m4;fp=c-version%2Fm4%2Fglibc21.m4;h=d95fd9861322c3840eb729e27e5992ba464c3a25;hp=0000000000000000000000000000000000000000;hb=1dc3e2e56bd836aa1c9d45417222b4fed6d34c0e;hpb=16a5bbd86d12644c1a613e61e990f76b16a567f0

diff --git a/c-version/m4/glibc21.m4 b/c-version/m4/glibc21.m4
new file mode 100644
index 0000000..d95fd98
--- /dev/null
+++ b/c-version/m4/glibc21.m4
@@ -0,0 +1,30 @@
+# glibc21.m4 serial 3
+dnl Copyright (C) 2000-2002, 2004 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"
+  ]
+)