https://bugs.gentoo.org/show_bug.cgi?id=467322
Patch-by: Helmut Jarausch <jarausch@igpm.rwth-aachen.de>
Fixes pkgconfig name for new json-c (since 0.11)

--- brushlib/SConscript.ORIG	2012-12-31 18:03:38.000000000 +0100
+++ brushlib/SConscript	2013-04-26 11:47:27.008232199 +0200
@@ -73,7 +73,7 @@
 
 env.Append(CPPPATH='./')
 
-pkg_deps = ['json']
+pkg_deps = ['json-c']
 libs = ['m']
 linkflags = []