Merge pull request #1984 from jefferyto/host-python-package

python: add capability to install python packages for the host

lang/python/Makefile

@@ -138,7 +138,10 @@ define Build/InstallDev
 	$(INSTALL_DIR) $(STAGING_DIR)/mk/
 	$(INSTALL_DIR) $(1)/usr/include/ $(1)/usr/lib/ $(1)/usr/lib/pkgconfig
 	$(INSTALL_DIR) $(1)/usr/lib/python$(PYTHON_VERSION)/
-	$(INSTALL_DATA) ./files/python-package.mk $(STAGING_DIR)/mk/
+	$(INSTALL_DATA) \
+		./files/python-package.mk \
+		./files/python-host.mk \
+		$(STAGING_DIR)/mk/
 	$(CP) \
 		$(PKG_INSTALL_DIR)/usr/include/python$(PYTHON_VERSION) \
 		$(1)/usr/include/

lang/python/files/python-host.mk

@@ -0,0 +1,53 @@
+#
+# Copyright (C) 2015 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+HOST_PYTHON_INC_DIR:=$(STAGING_DIR_HOST)/include/python$(PYTHON_VERSION)
+
+HOST_PYTHON_PKG_DIR:=/lib/python$(PYTHON_VERSION)/site-packages
+
+HOST_PYTHONPATH:=$(HOST_PYTHON_LIB_DIR):$(STAGING_DIR_HOST)/$(HOST_PYTHON_PKG_DIR)
+define HostHostPython
+	(	export PYTHONPATH="$(HOST_PYTHONPATH)"; \
+		export PYTHONOPTIMIZE=""; \
+		export PYTHONDONTWRITEBYTECODE=1; \
+		export _python_sysroot="$(STAGING_DIR_HOST)"; \
+		export _python_prefix=""; \
+		export _python_exec_prefix=""; \
+		$(1) \
+		$(HOST_PYTHON_BIN) $(2); \
+	)
+endef
+
+# These configure args are needed in detection of path to Python header files
+# using autotools.
+HOST_CONFIGURE_ARGS += \
+	_python_sysroot="$(STAGING_DIR_HOST)" \
+	_python_prefix="" \
+	_python_exec_prefix=""
+
+# $(1) => build subdir
+# $(2) => additional arguments to setup.py
+# $(3) => additional variables
+define Build/Compile/HostPyMod
+	$(call HostHostPython, \
+		cd $(HOST_BUILD_DIR)/$(strip $(1)); \
+		CC="$(HOSTCC)" \
+		CCSHARED="$(HOSTCC) $(HOST_FPIC)" \
+		CXX="$(HOSTCXX)" \
+		LD="$(HOSTCC)" \
+		LDSHARED="$(HOSTCC) -shared" \
+		CFLAGS="$(HOST_CFLAGS)" \
+		CPPFLAGS="$(HOST_CPPFLAGS) -I$(HOST_PYTHON_INC_DIR)" \
+		LDFLAGS="$(HOST_LDFLAGS) -lpython$(PYTHON_VERSION)" \
+		_PYTHON_HOST_PLATFORM=linux2 \
+		__PYVENV_LAUNCHER__="/usr/bin/$(PYTHON)" \
+		$(3) \
+		, \
+		./setup.py $(2) \
+	)
+endef
+