From aef363c7e8e942224e6cffc4398366c6e5d31749 Mon Sep 17 00:00:00 2001 From: Fabrice Fontaine Date: Thu, 11 Jun 2020 00:04:32 +0200 Subject: [PATCH] configure.ac: fix build failure when crypt() does not require libcrypt Since commit 522246d20e4cd92fadc2d760228cb7e78cbeb4c5, the build fails if "none required" is returned by AC_SEARCH_LIBS for libcrypt. Resolves: https://github.com/linux-pam/linux-pam/pull/235 Fixes: http://autobuild.buildroot.org/results/92b3dd7c984d2b843ac9aacacd69eec99f28743e Fixes: v1.4.0~228 ("Use cached 'crypt' library result correctly") Signed-off-by: Fabrice Fontaine [Retrieved from: https://github.com/linux-pam/linux-pam/commit/aef363c7e8e942224e6cffc4398366c6e5d31749] --- configure.ac | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/configure.ac b/configure.ac index ea08a7a3..c1862ea7 100644 --- a/configure.ac +++ b/configure.ac @@ -428,7 +428,11 @@ AS_IF([test "x$ac_cv_header_xcrypt_h" = "xyes"], [crypt_libs="crypt"]) BACKUP_LIBS=$LIBS -AC_SEARCH_LIBS([crypt],[$crypt_libs], LIBCRYPT="${ac_cv_search_crypt}", LIBCRYPT="") +AC_SEARCH_LIBS([crypt],[$crypt_libs]) +case "$ac_cv_search_crypt" in + -l*) LIBCRYPT="$ac_cv_search_crypt" ;; + *) LIBCRYPT="" ;; +esac AC_CHECK_FUNCS(crypt_r crypt_gensalt_r) LIBS=$BACKUP_LIBS AC_SUBST(LIBCRYPT)