Update RingPostgreSQL - extensions/ringpostgresql/buildclang.sh
-clang -c -fpic ring_pgsql.c -I $PWD/../../include -I /usr/local/include -I /usr/local/pgsql/include
-clang -dynamiclib -o $PWD/../../lib/libring_pgsql.dylib ring_pgsql.o -L $PWD/../../lib -lring -L /usr/local/pgsql/lib -lpq
+clang -c -fpic ring_pgsql.c -I $PWD/../../include -I /usr/local/include -I /usr/local/opt/libpq/include
+clang -dynamiclib -o $PWD/../../lib/libring_pgsql.dylib ring_pgsql.o -L $PWD/../../lib -lring -L /usr/local/opt/libpq/lib -lpq
