build: curvetun: add NACL_LIB variable to configure to be able to set an alternative lib

This way one can simply set an alternative lib like libsodium for
linking the curvetun binary.

The current default linking against libnacl is preserved!

To link curvetun against libsodium you can set NACL_LIB=sodium

Signed-off-by: Christian Wiese <chris@opensde.org>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/configure b/configure
index 9b5ea9e..68291d2 100755
--- a/configure
+++ b/configure
@@ -119,6 +119,10 @@ EOF
 		NACL_LIB_DIR="/usr/lib"
 	fi
 
+	if [ -z $NACL_LIB ] ; then
+		NACL_LIB="nacl"
+	fi
+
 	LDFLAGS="-L $NACL_LIB_DIR"
 	CFLAGS="-I $NACL_INC_DIR"
 
@@ -131,6 +135,7 @@ EOF
 		echo "[YES]"
 		echo "CONFIG_NACL_INC_DIR:=$NACL_INC_DIR" >> Config
 		echo "CONFIG_NACL_LIB_DIR:=$NACL_LIB_DIR" >> Config
+		echo "CONFIG_NACL_LIB:=$NACL_LIB" >> Config
 	fi
 }