Add support for libtomcrypt

configure

@@ -163,6 +163,7 @@ feat_readline=1
 try_readline=1
 try_editline=1
 try_nss=1
+try_tomcrypt=1
 feat_rtc=1
 try_rtc=0
 feat_linuxcaps=1
@@ -249,6 +250,9 @@ do
     --without-nss )
       try_nss=0
     ;;
+    --without-tomcrypt )
+      try_tomcrypt=0
+    ;;
     --host-system=* )
       OPERATINGSYSTEM=`echo $option | sed -e 's/^.*=//;'`
     ;;
@@ -493,6 +497,16 @@ if [ $try_nss = "1" ]; then
   fi
 fi
 
+if [ "x$HASH_LINK" = "x" ] && [ $try_tomcrypt = "1" ]; then
+  if test_code 'tomcrypt' 'tomcrypt.h' '-I/usr/include/tomcrypt' '-ltomcrypt' \
+    'hash_memory_multi(find_hash("md5"), NULL, NULL, NULL, 0, NULL, 0);'
+  then
+    HASH_OBJ="hash_tomcrypt.o"
+    HASH_COMPILE="-I/usr/include/tomcrypt"
+    HASH_LINK="-ltomcrypt"
+  fi
+fi
+
 SYSCONFDIR=/etc
 if [ "x$SETSYSCONFDIR" != "x" ]; then
   SYSCONFDIR=$SETSYSCONFDIR