toolchain: respect CONFIG_VERSION_FILENAMES and add host system suffix
toolchain: respect CONFIG_VERSION_FILENAMES and add host system suffix

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44311 3c298f89-4303-0410-b956-a3cf2f4a3e73

--- a/target/toolchain/Makefile
+++ b/target/toolchain/Makefile
@@ -13,10 +13,7 @@
 
 override MAKEFLAGS=
 
-PKG_OS:=$(word 2,$(subst -, ,$(shell $(HOSTCC) -dumpmachine)))
-PKG_CPU:=$(word 1,$(subst -, ,$(shell $(HOSTCC) -dumpmachine)))
-
-TOOLCHAIN_NAME:=OpenWrt-Toolchain-$(BOARD)-for-$(ARCH)$(ARCH_SUFFIX)-gcc-$(GCCV)$(DIR_SUFFIX)
+TOOLCHAIN_NAME:=OpenWrt-Toolchain-$(if $(CONFIG_VERSION_FILENAMES),$(VERSION_NUMBER)-)$(BOARD)$(if $(SUBTARGET),-$(SUBTARGET))_gcc-$(GCCV)$(DIR_SUFFIX).$(HOST_OS)-$(HOST_ARCH)
 TOOLCHAIN_BUILD_DIR:=$(BUILD_DIR)/$(TOOLCHAIN_NAME)
 EXCLUDE_DIRS:=*/ccache \
 	*/initial \

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