lib/json: make build nitcc if required

Signed-off-by: Jean Privat <jean@pryen.org>

diff --git a/lib/json/Makefile b/lib/json/Makefile
index 8d10e1e..8d0650f 100644 (file)
--- a/lib/json/Makefile
+++ b/lib/json/Makefile
@@ -1,2 +1,7 @@
-compile-parser:
-       ../../contrib/nitcc/src/nitcc ../../contrib/nitcc/examples/json.sablecc
+NITCCDIR=../../contrib/nitcc/
+
+compile-parser: $(NITCCDIR)src/nitcc
+       $(NITCCDIR)src/nitcc $(NITCCDIR)examples/json.sablecc
+
+$(NITCCDIR)src/nitcc:
+       make -C $(NITCCDIR)