--- Makefile.configure.orig	2021-09-03 20:08:25 UTC
+++ Makefile.configure
@@ -19,7 +19,7 @@ PROGRAM-cjson += \#include <cjson/cJSON.h>\n
 PROGRAM-cjson += int main() { return cJSON_False; }
 CCFLAGS-cjson = -I$(dir $(MAKEFILE))src
 PROGRAM-system-cjson = $(PROGRAM-cjson)
-CCFLAGS-system-cjson = -lcjson
+CCFLAGS-system-cjson = -I$(LOCALBASE)/include -L$(LOCALBASE)/lib -lcjson
 
 sink:
 	@echo >&2 Please run from the top-level Makefile.