File use-pkg-config.patch of Package python-setproctitle

--- a/Makefile.orig	2019-09-15 17:13:27.656631109 +0700
+++ b/Makefile	2019-09-15 17:16:00.458264928 +0700
@@ -7,15 +7,15 @@
 
 # Customize these to select the Python to build/test
 PYTHON ?= python
-PYCONFIG ?= python-config
+PYCONFIG ?= pkg-config
 PY2TO3 ?= 2to3
 
 # PYVER value is 2 or 3
 PYVER := $(shell $(PYTHON) -c "import sys; print(sys.version_info[0])")
 ROOT_PATH := $(shell pwd)
 
-PYINC := $(shell $(PYCONFIG) --includes)
-PYLIB := $(shell $(PYCONFIG) --ldflags) -L$(shell $(PYCONFIG) --prefix)/lib
+PYINC := $(shell $(PYCONFIG) python$(PYVER) --cflags)
+PYLIB := $(shell $(PYCONFIG) python$(PYVER) --libs) -L$(shell $(PYCONFIG) python$(PYVER) --prefix)/lib
 
 BUILD_DIR = build/lib.$(PYVER)