lttoolbox: BUILD_TESTING and python port

Author: Dave-Allured

textproc/lttoolbox/Portfile

@@ -36,15 +36,11 @@ checksums               rmd160  81acb8547ecebd9a1ca335ae4cd949bd76e8df8c \
 # https://github.com/apertium/lttoolbox/issues/206
 patchfiles-append       patch-ustring_h.diff
 
+set python_version      313
+
 depends_build-append    path:bin/pkg-config:pkgconfig \
+                        port:python${python_version} \
                         port:utfcpp
 
 depends_lib-append      port:libxml2 \
                         port:icu
-
-# ToDo: Remove this configure line, enable BUILD_TESTING by default.
-# Requires python.  Needs debugging.  This gave strange cmake error:
-#### PortGroup               python 1.0
-#### python.default_version  313
-
-configure.args-append   -DBUILD_TESTING=OFF