Try PG_LDFALGS

Author: mkgrgis

Makefile

@@ -17,7 +17,7 @@ DATA = sqlite_fdw--1.0.sql sqlite_fdw--1.0--1.1.sql
 
 # Use local downloaded and compiles SQLite library instead of system
 ifdef CI_ENV
-override PG_CFLAGS += -L/usr/local/lib
+override PG_LDFLAGS += -L/usr/local/lib
 endif
 
 ifdef ENABLE_GIS