From a35daea1b8be768d1b0be6eae157fbf3e5380f92 Mon Sep 17 00:00:00 2001
From: Yousong Zhou <yszhou4tech@gmail.com>
Date: Wed, 17 Jun 2015 18:22:31 +0800
Subject: [PATCH 4/7] build: fix build when crypt() is not part of crypt_libs.

* configure.ac: ditto.

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
---
 configure.ac |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index ca4bf5b..6553c78 100644
--- a/configure.ac
+++ b/configure.ac
@@ -408,7 +408,7 @@ AS_IF([test "x$ac_cv_header_xcrypt_h" = "xyes"],
   [crypt_libs="crypt"])
 
 BACKUP_LIBS=$LIBS
-AC_SEARCH_LIBS([crypt],[$crypt_libs], LIBCRYPT="-l$ac_lib", LIBCRYPT="")
+AC_SEARCH_LIBS([crypt],[$crypt_libs], LIBCRYPT="${ac_lib:+-l$ac_lib}", LIBCRYPT="")
 AC_CHECK_FUNCS(crypt_r crypt_gensalt_r)
 LIBS=$BACKUP_LIBS
 AC_SUBST(LIBCRYPT)
-- 
1.7.10.4

