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-rw-r--r--configure.in2
1 files changed, 1 insertions, 1 deletions
diff --git a/configure.in b/configure.in
index ae762a2..385f065 100644
--- a/configure.in
+++ b/configure.in
@@ -400,7 +400,7 @@ 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)