X-Git-Url: http://erislabs.net/gitweb/?p=gnulib.git;a=blobdiff_plain;f=m4%2Fcount-trailing-zeros.m4;fp=m4%2Fcount-trailing-zeros.m4;h=617159e35114e6dec8a560b8193b7f344b5f28a3;hp=0000000000000000000000000000000000000000;hb=458c944ddbb41cd6ba34416db2867eb6f17bf61a;hpb=6a8461af29d6ce87d891ca8e1433848f5f4c45b8

diff --git a/m4/count-trailing-zeros.m4 b/m4/count-trailing-zeros.m4
new file mode 100644
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+++ b/m4/count-trailing-zeros.m4
@@ -0,0 +1,12 @@
+# count-trailing-zeros.m4
+dnl Copyright (C) 2013-2014 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.
+
+AC_DEFUN([gl_COUNT_TRAILING_ZEROS],
+[
+  dnl We don't need (and can't compile) count_trailing_zeros_ll
+  dnl unless the type 'unsigned long long int' exists.
+  AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT])
+])