From 40b6fce4a15c12e548c0b4fbcff29d35dd2c9557 Mon Sep 17 00:00:00 2001
From: nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Sat, 30 Jun 2012 18:12:15 +0000
Subject: [PATCH] toolchain: keep the initial gcc around for later uclibc
 rebuilds

testing uclibc changes is tricky because the final gcc tends to miscompile
uclibc code or barf up internal compiler errors.
install binutils into $(TOOLCHAIN_DIR)/initial (without changing the configure
prefix) and copy it from there to $(TOOLCHAIN_DIR)/ so that the initial gcc
can be put into $(PATH) for the uclibc build, even if the final gcc
is already installed.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@32553 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 toolchain/binutils/Makefile    | 6 +++++-
 toolchain/gcc/initial/Makefile | 5 ++++-
 toolchain/uClibc/Makefile      | 2 +-
 3 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/toolchain/binutils/Makefile b/toolchain/binutils/Makefile
index 0022202d4..9d12721de 100644
--- a/toolchain/binutils/Makefile
+++ b/toolchain/binutils/Makefile
@@ -79,7 +79,11 @@ define Host/Compile
 endef
 
 define Host/Install
-	$(MAKE) -C $(HOST_BUILD_DIR) install
+	mkdir -p $(TOOLCHAIN_DIR)/initial
+	$(MAKE) -C $(HOST_BUILD_DIR) \
+		prefix=$(TOOLCHAIN_DIR)/initial \
+		install
+	$(CP) $(TOOLCHAIN_DIR)/initial/. $(TOOLCHAIN_DIR)/
 	$(CP) $(TOOLCHAIN_DIR)/bin/$(REAL_GNU_TARGET_NAME)-readelf $(REAL_STAGING_DIR_HOST)/bin/readelf
 endef
 
diff --git a/toolchain/gcc/initial/Makefile b/toolchain/gcc/initial/Makefile
index f3f78b0b2..3d8ab61cd 100644
--- a/toolchain/gcc/initial/Makefile
+++ b/toolchain/gcc/initial/Makefile
@@ -19,14 +19,17 @@ endef
 
 define Host/Install
 	$(GCC_MAKE) -C $(GCC_BUILD_DIR) \
+		prefix="$(TOOLCHAIN_DIR)/initial" \
 		install-gcc \
 		$(if $(GCC_BUILD_TARGET_LIBGCC),install-target-libgcc)
 
 	# XXX: glibc insists on linking against libgcc_eh
-	( cd $(TOOLCHAIN_DIR)/lib/gcc/$(REAL_GNU_TARGET_NAME)/$(PKG_VERSION) ; \
+	( cd $(TOOLCHAIN_DIR)/initial/lib/gcc/$(REAL_GNU_TARGET_NAME)/$(PKG_VERSION) ; \
 		[ -e libgcc_eh.a ] || ln -sf libgcc.a libgcc_eh.a ; \
 		cp libgcc.a libgcc_initial.a; \
 	)
+
+	$(CP) $(TOOLCHAIN_DIR)/initial/. $(TOOLCHAIN_DIR)/
 endef
 
 $(eval $(call HostBuild))
diff --git a/toolchain/uClibc/Makefile b/toolchain/uClibc/Makefile
index 6e7e9ddd8..315e0446c 100644
--- a/toolchain/uClibc/Makefile
+++ b/toolchain/uClibc/Makefile
@@ -93,7 +93,7 @@ CPU_CFLAGS = \
 	--std=gnu99 -ffunction-sections -fdata-sections \
 	$(TARGET_CFLAGS)
 
-UCLIBC_MAKE = PATH='$(TARGET_PATH)' $(MAKE) -C $(HOST_BUILD_DIR) \
+UCLIBC_MAKE = PATH='$(TOOLCHAIN_DIR)/initial/bin:$(TARGET_PATH)' $(MAKE) -C $(HOST_BUILD_DIR) \
 	$(TARGET_CONFIGURE_OPTS) \
 	DEVEL_PREFIX=/ \
 	RUNTIME_PREFIX=/ \