Index: configure.ac
==================================================================
--- configure.ac
+++ configure.ac
@@ -846,11 +846,26 @@
 		AC_DEFINE(OF_HAVE_SYMLINK, 1, [Whether we have symlink()])
 	])
 	AC_CHECK_FUNC(readlink, [
 		AC_DEFINE(OF_HAVE_READLINK, 1, [Whether we have readlink()])
 	])
-	AC_CHECK_FUNCS([lstat readdir_r])
+	AC_CHECK_FUNCS([lstat])
+
+	AC_MSG_CHECKING(for readdir_r)
+	AC_TRY_COMPILE([
+		#include <dirent.h>
+	], [
+		DIR *dir = 0;
+		struct dirent entry, *result;
+
+		readdir_r(dir, &entry, &result);
+	], [
+		AC_MSG_RESULT(yes)
+		AC_DEFINE(HAVE_READDIR_R, 1, [Whether we have readdir_r()])
+	], [
+		AC_MSG_RESULT(no)
+	])
 ])
 
 AC_CHECK_FUNCS([sysconf gmtime_r localtime_r nanosleep fcntl])
 
 AC_CHECK_FUNC(pipe, [