installation/metadata-collect-agent/Makefile: Add J's trick.

installation/metadata-collect-agent/Makefile

-ifneq ($(PYTHON_PATH),) # this is for buildouts
-	INCLUDE_PYTHON=-I$(shell python3 -c "import sysconfig; print(sysconfig.get_path('include'))")
+INCLUDE_PYTHON=-I$(shell python3 -c "import sysconfig; print(sysconfig.get_path('include'))")
+#ifneq ($(PYTHON_PATH),) # this is for buildouts
+	#INCLUDE_PYTHON=-I$(shell python3 -c "import sysconfig; print(sysconfig.get_path('include'))")
 	#INCLUDE_PYTHON=-I$(shell $(PYTHON_PATH)/bin/python3 -c "from sysconfig import get_paths; print(get_paths()['include'])")
-endif
-ifeq ($(INCLUDE_PYTHON),) # default behavior to get python includes path
-	INCLUDE_PYTHON = $(shell pkg-config --cflags python3 | cut -f 1 -d " ")
-endif
+#endif
+#ifeq ($(INCLUDE_PYTHON),) # default behavior to get python includes path
+#	INCLUDE_PYTHON = $(shell pkg-config --cflags python3 | cut -f 1 -d " ")
+#endif
 
 ifneq ($(FMTLIB_PATH),)
 	INCLUDE_FMTLIB = -I$(FMTLIB_PATH)/include