--- setup.cfg.orig	2019-04-08 09:47:56.000000000 -0400
+++ setup.cfg	2019-04-08 09:48:06.000000000 -0400
@@ -1,6 +1,6 @@
 [build_ext]
 define = 
-pg_config = 
+pg_config = @PG_CONFIG@
 mx_include_dir = 
 have_ssl = 0
 static_libpq = 0