1 files changed, 49 insertions, 0 deletions
diff --git a/m4/rmdir-errno.m4 b/m4/rmdir-errno.m4
new file mode 100644
index 0000000..7693bc7
--- /dev/null
+++ b/m4/rmdir-errno.m4
@@ -0,0 +1,49 @@
+#serial 8
+
+# Copyright (C) 2000, 2001, 2005, 2006 Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# When rmdir fails because the specified directory is not empty, it sets
+# errno to some value, usually ENOTEMPTY.  However, on some AIX systems,
+# ENOTEMPTY is mistakenly defined to be EEXIST.  To work around this, and
+# in general, to avoid depending on the use of any particular symbol, this
+# test runs a test to determine the actual numeric value.
+AC_DEFUN([gl_FUNC_RMDIR_NOTEMPTY],
+[dnl
+  AC_CHECK_HEADERS_ONCE(unistd.h)
+  AC_CACHE_CHECK([for rmdir-not-empty errno value],
+    gl_cv_func_rmdir_errno_not_empty,
+    [
+      # Arrange for deletion of the temporary directory this test creates.
+      ac_clean_files="$ac_clean_files confdir2"
+      mkdir confdir2; : > confdir2/file
+      AC_TRY_RUN([
+#include <stdio.h>
+#include <errno.h>
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+	int main ()
+	{
+	  FILE *s;
+	  int val;
+	  rmdir ("confdir2");
+	  val = errno;
+	  s = fopen ("confdir2/errno", "w");
+	  fprintf (s, "%d\n", val);
+	  return 0;
+	}
+	],
+      gl_cv_func_rmdir_errno_not_empty=`cat confdir2/errno`,
+      gl_cv_func_rmdir_errno_not_empty='configure error in rmdir-errno.m4',
+      gl_cv_func_rmdir_errno_not_empty=ENOTEMPTY
+      )
+    ]
+  )
+
+  AC_DEFINE_UNQUOTED([RMDIR_ERRNO_NOT_EMPTY],
+    $gl_cv_func_rmdir_errno_not_empty,
+    [the value to which errno is set when rmdir fails on a nonempty directory])
+])