From f37fa9a41f248fa41dd74a41c66cb41a291c03d2 Mon Sep 17 00:00:00 2001
From: Andre McCurdy <armccurdy@gmail.com>
Date: Fri, 16 Sep 2016 12:18:23 -0700
Subject: [PATCH] fix libtomcrypt/libtommath ordering

To prevent build failures when using system libtom libraries and
linking with --as-needed, LIBTOM_LIBS should be in the order
-ltomcrypt -ltommath, not the other way around, ie libs should be
prepended to LIBTOM_LIBS as they are found, not appended.

Note that LIBTOM_LIBS is not used when linking with the bundled
libtom libs.

Upstream-Status: Backport [ https://github.com/mkj/dropbear/commit/f9e6bc2aecab0f4b5b529e07a92cc63c8a66cd4b ]

Signed-off-by: Andre McCurdy <armccurdy@gmail.com>
Signed-off-by: Dengke Du <dengke.du@windriver.com>
---
 configure.ac | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/configure.ac b/configure.ac
index 245408d..d624853 100644
--- a/configure.ac
+++ b/configure.ac
@@ -393,16 +393,16 @@ AC_ARG_ENABLE(bundled-libtom,
 			AC_MSG_NOTICE(Forcing bundled libtom*)
 		else
 			BUNDLED_LIBTOM=0
-			AC_CHECK_LIB(tommath, mp_exptmod, LIBTOM_LIBS="$LIBTOM_LIBS -ltommath", 
+			AC_CHECK_LIB(tommath, mp_exptmod, LIBTOM_LIBS="-ltommath $LIBTOM_LIBS",
 				[AC_MSG_ERROR([Missing system libtommath and --disable-bundled-libtom was specified])] )
-			AC_CHECK_LIB(tomcrypt, register_cipher, LIBTOM_LIBS="$LIBTOM_LIBS -ltomcrypt", 
+			AC_CHECK_LIB(tomcrypt, register_cipher, LIBTOM_LIBS="-ltomcrypt $LIBTOM_LIBS",
 				[AC_MSG_ERROR([Missing system libtomcrypt and --disable-bundled-libtom was specified])] )
 		fi
 	],
 	[
 		BUNDLED_LIBTOM=0
-		AC_CHECK_LIB(tommath, mp_exptmod, LIBTOM_LIBS="$LIBTOM_LIBS -ltommath", BUNDLED_LIBTOM=1)
-		AC_CHECK_LIB(tomcrypt, register_cipher, LIBTOM_LIBS="$LIBTOM_LIBS -ltomcrypt", BUNDLED_LIBTOM=1)
+		AC_CHECK_LIB(tommath, mp_exptmod, LIBTOM_LIBS="-ltommath $LIBTOM_LIBS", BUNDLED_LIBTOM=1)
+		AC_CHECK_LIB(tomcrypt, register_cipher, LIBTOM_LIBS="-ltomcrypt $LIBTOM_LIBS", BUNDLED_LIBTOM=1)
 	]
 )
 
-- 
2.8.1