--- rzip-2.0/configure.in.orig	2005-09-17 17:10:08.000000000 +0200
+++ rzip-2.0/configure.in	2005-09-17 17:10:21.000000000 +0200
@@ -52,5 +52,6 @@
 
 AC_CHECK_FUNCS(mmap strerror)
 AC_CHECK_FUNCS(getopt_long)
+AC_CHECK_FUNCS(strndup)
 
 AC_OUTPUT(Makefile)
--- rzip-2.0/main.c.orig	2005-09-17 13:54:34.000000000 +0200
+++ rzip-2.0/main.c	2005-09-17 14:02:35.000000000 +0200
@@ -118,7 +118,14 @@
 	fchown(fd_out, st.st_uid, st.st_gid);
 }	
 
-	
+#ifndef HAVE_STRNDUP
+static char* strndup(const char* s, size_t n) {
+	char* ret = malloc(n + 1);
+	if (ret == NULL) return(ret);
+	ret[n] = '\0';
+	return(strncpy(ret, s, n));
+}
+#endif
 
 /*
   decompress one file from the command line