install python config

Usable by 3rd party modules.
Fix python3 stuff

configure/CONFIG_PY

@@ -2,19 +2,27 @@ PYMODULE ?= YES
 
 ifneq ($(T_A),)
 
-include $(TOP)/configure/O.$(T_A)/CONFIG_PY
+-include $(dir $(lastword $(MAKEFILE_LIST)))/os/CONFIG_PY.$(EPICS_HOST_ARCH).Common
+-include $(dir $(lastword $(MAKEFILE_LIST)))/os/CONFIG_PY.Common.$(T_A)
+-include $(dir $(lastword $(MAKEFILE_LIST)))/os/CONFIG_PY.$(EPICS_HOST_ARCH).$(T_A)
+
 ifneq ($(PY_OK),YES)
-$(error Unable to get python configuration)
+$(error Unable to get generated python configuration)
 endif
 
-USR_CPPFLAGS += $(PY_INCDIRS:%=-I%)
-USR_LDFLAGS += $(PY_LIBDIRS:%=-L%)
+PYTHON ?= python$(PY_VER)
+
+SHRLIB_DEPLIB_DIRS += $(PY_LIBDIRS)
+PROD_DEPLIB_DIRS += $(PY_LIBDIRS)
+
+INCLUDES += $(PY_INCDIRS:%=-I%)
 
 ifeq ($(HAVE_NUMPY),YES)
-USR_CPPFLAGS += -DHAVE_NUMPY
+TARGET_CPPFLAGS += -DHAVE_NUMPY
 endif
 
-LIB_SYS_LIBS += python$(PY_VER)
+LIB_SYS_LIBS += python$(PY_LD_VER)
+PROD_SYS_LIBS += python$(PY_LD_VER)
 
 PY_INSTALL_DIR = $(INSTALL_LOCATION)/python$(PY_VER)/$(T_A)
 

configure/CONFIG_SITE

@@ -32,4 +32,6 @@ CHECK_RELEASE = YES
 #   take effect.
 #IOCS_APPL_TOP = </IOC/path/to/application/top>
 
+# Module will be build against this version of the
+# Python interpreter
 PYTHON ?= python

configure/Makefile

@@ -3,14 +3,19 @@ TOP=..
 include $(TOP)/configure/CONFIG
 
 TARGETS = $(CONFIG_TARGETS)
-CONFIGS += $(subst ../,,$(wildcard $(CONFIG_INSTALLS)))
 
-TARGETS += CONFIG_PY RULES_PY
+ifdef T_A
+CONFIGS = CONFIG_PY RULES_PY os/CONFIG_PY.Common.$(T_A)
+endif
 
 include $(TOP)/configure/RULES
 
-CONFIG_PY: $(TOP)/makehelper.py
+os/CONFIG_PY.Common.%: $(TOP)/makehelper.py
+	[ -d $(dir $@) ] || $(MKDIR) $(dir $@)
 	$(PYTHON) $< $@
 
-RULES_PY: ../RULES_PY
-	install -m644 $< $@
+realclean:: py_clean
+clean:: py_clean
+
+py_clean:
+	$(RMDIR) os