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