Don't build GDB in canadian build->target

In canadian build->target is built first (eg. in order to build/run
executable on build system to generate table), then host->target.

Don't build GDB in build->target, because GDB doens't need it.  Besides,
--with-python= pointing to "host" header can fail "build"'s gcc.

Change-Id: Ic1a8a9d6fe5974a6747ca4342a336beea9987f47
diff --git a/Makefile.in b/Makefile.in
index 1aefec0..fdb4725 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -253,8 +253,8 @@
 	  mkdir $(CANADIAN_ROOT)) && \
 	($(canadian_build_env) \
 	 cd $(CANADIAN_ROOT) && \
-	 $(abs_srcdir)/configure $(baseargs) --build=$(cur_build) \
-		--host=$(cur_build) --target=$(cur_target)) && \
+	 $(abs_srcdir)/configure $(baseargs) --with-gdb-version=none --build=$(cur_build) \
+		--host=$(cur_build) --target=$(cur_target))  && \
 	$(STAMP) $@
 
 build-canadian-tools: stmp-build-canadian-tools