[json-glib] build: Add gcov proxy rule

[Emmanuele Bassi <ebassi src gnome org>]

commit c8cc10985c3e7aac5ca1c03a7b443951929ed0cb
Author: Emmanuele Bassi <ebassi linux intel com>
Date:   Fri Jan 1 18:02:03 2010 +0000

    build: Add gcov proxy rule
    
    The gcov rule lives in json-glib/Makefile.am, but it would be nice to
    have a similar rule in the top source directory as well.

 Makefile.am |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index fb2170e..6d659f4 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -36,3 +36,6 @@ dist-hook:
 	else \
 	  echo A git checkout is required to generate a ChangeLog >&2; \
 	fi
+
+gcov:
+	( cd json-glib && $(MAKE) $(AM_MAKEFLAGS) $@ ) || exit $?