use target-libc combination for all builddirs

IMPORTANT: do a make distclean before compiling after
this commit.

The directories for all build and bin directories changed, so
that toolchains for different target-libc combinations can coexist.
This might be usefule in the future for continous compiling after
git commit, without rebuilding the toolchain.
Rework busybox rebuild, when config changes. Not optimal, but at least
working after this change to the directory structure.

2 files changed, 13 insertions, 18 deletions

diff --git a/mk/build.mk b/mk/build.mk
index e7d1f0ae0..5c26ea4c9 100644
--- a/mk/build.mk
+++ b/mk/build.mk
@@ -57,10 +57,7 @@ noconfig_targets:=	menuconfig \
 			distclean \
 			tags
 
-MAKECLEANDIR_SYMBOLS=	ADK_TARGET_LIB_UCLIBC \
-			ADK_TARGET_LIB_GLIBC \
-			ADK_TARGET_LIB_ECLIBC \
-			ADK_DEBUG
+MAKECLEANDIR_SYMBOLS=	ADK_DEBUG
 
 MAKECLEAN_SYMBOLS=	ADK_TARGET_PACKAGE_IPKG \
 			ADK_TARGET_PACKAGE_RPM \
@@ -89,11 +86,7 @@ POSTCONFIG=		-@ \
 		    "$$what' might be required!"; \
 		break; \
 	done; \
-	fi; \
-	if [ "$$(grep ^BUSYBOX .config|md5sum)" != "$$(grep ^BUSYBOX .config.old|md5sum)" ];then \
-		if [ -f build_*/w-busybox*/busybox*/.configure_done ];then \
-			rm build_*/w-busybox*/busybox*/.configure_done; \
-		fi; \
+	if [ -f .busyboxcfg ];then rm .busyboxcfg;fi; \
 	fi; \
 	fi
 
@@ -238,14 +231,15 @@ cleandir:
 	rm -rf $(TOOLCHAIN_BUILD_DIR_PFX) $(STAGING_PARENT_PFX) \
 	    $(TOOLS_BUILD_DIR)
 	rm -f .menu .tmpconfig.h ${TOPDIR}/package/*/info.mk \
-	    ${TOPDIR}/package/Depends.mk ${TOPDIR}/prereq.mk
+	    ${TOPDIR}/package/Depends.mk ${TOPDIR}/prereq.mk \
+	    .busyboxcfg
 
 cleantarget:
 	@$(TRACE) cleantarget
 	@$(MAKE) -C $(CONFIG) clean $(MAKE_TRACE)
 	rm -rf $(BUILD_DIR) $(BIN_DIR) $(TARGET_DIR) ${TOPDIR}/.cfg
 	rm -rf $(TOOLCHAIN_BUILD_DIR) $(STAGING_PARENT) all.config .defconfig
-	rm -f .tmpconfig.h ${TOPDIR}/package/*/info.mk
+	rm -f .tmpconfig.h ${TOPDIR}/package/*/info.mk .busyboxcfg
 
 distclean:
 	@$(TRACE) distclean
@@ -254,7 +248,8 @@ distclean:
 	    ${TOPDIR}/.cfg* ${TOPDIR}/package/pkglist.d $(TOPDIR)/bulkdir
 	@rm -rf $(TOOLCHAIN_BUILD_DIR_PFX) $(STAGING_PARENT_PFX) $(TOOLS_BUILD_DIR)
 	@rm -f .config* .defconfig .tmpconfig.h all.config ${TOPDIR}/prereq.mk \
-	    .menu ${TOPDIR}/package/*/info.mk ${TOPDIR}/package/Depends.mk
+	    .menu ${TOPDIR}/package/*/info.mk ${TOPDIR}/package/Depends.mk \
+	    .busyboxcfg
 
 else # ! ifeq ($(strip $(ADK_HAVE_DOT_CONFIG)),y)
 
diff --git a/mk/vars.mk b/mk/vars.mk
index cba312e2d..53755266e 100644
--- a/mk/vars.mk
+++ b/mk/vars.mk
@@ -18,20 +18,20 @@ TARGET_CFLAGS:=		$(TARGET_OPTIMIZATION) $(TARGET_CFLAGS_ARCH) $(TARGET_DEBUGGING
 
 BASE_DIR:=		$(TOPDIR)
 DISTDIR?=		${BASE_DIR}/dl
-BUILD_DIR:=		${BASE_DIR}/build_${CPU_ARCH}
+BUILD_DIR:=		${BASE_DIR}/build_${ADK_TARGET}_${ADK_LIBC}
 BUILD_DIR_PFX:=		$(BASE_DIR)/build_*
-STAGING_PARENT:=	${BASE_DIR}/cross_${CPU_ARCH}
+STAGING_PARENT:=	${BASE_DIR}/cross_${ADK_TARGET}_${ADK_LIBC}
 STAGING_PARENT_PFX:=	${BASE_DIR}/cross_*
 STAGING_TOOLS:=		${STAGING_PARENT}/host
 STAGING_DIR:=		${STAGING_PARENT}/target
-TOOLCHAIN_BUILD_DIR=	$(BASE_DIR)/toolchain_build_${CPU_ARCH}
+TOOLCHAIN_BUILD_DIR=	$(BASE_DIR)/toolchain_build_${ADK_TARGET}_${ADK_LIBC}
 TOOLCHAIN_BUILD_DIR_PFX=$(BASE_DIR)/toolchain_build_*
 TOOLS_BUILD_DIR=	$(BASE_DIR)/tools_build
 SCRIPT_DIR:=		$(BASE_DIR)/scripts
-BIN_DIR:=		$(BASE_DIR)/bin_${ADK_TARGET}
-BIN_DIR_PFX:=		$(BASE_DIR)/bin_*
+BIN_DIR:=		$(BASE_DIR)/bin/${ADK_TARGET}_${ADK_LIBC}
+BIN_DIR_PFX:=		$(BASE_DIR)/bin
 PACKAGE_DIR:=		$(BIN_DIR)/packages
-TARGET_DIR:=		$(BASE_DIR)/root_${ADK_TARGET}
+TARGET_DIR:=		$(BASE_DIR)/root_${ADK_TARGET}_${ADK_LIBC}
 TARGET_DIR_PFX:=	$(BASE_DIR)/root_*
 TARGET_PATH=		${SCRIPT_DIR}:${STAGING_TOOLS}/bin:${STAGING_DIR}/scripts:${_PATH}
 REAL_GNU_TARGET_NAME=	$(CPU_ARCH)-linux-$(ADK_TARGET_SUFFIX)