Move toolchain from /tools to /tools_${arch}

This will allow us to run multiple builds on the same
system at the same time (or at least have them on disk).

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

lfs/gcc

@@ -50,7 +50,7 @@ ifeq "$(BUILD_ARCH)" "armv5tel"
 	FULL_BOOTSTRAP = 1
 endif
 
-# Normal build or /tools build.
+# Normal build or $(TOOLS_DIR) build.
 #
 ifeq "$(ROOT)" ""
   TARGET = $(DIR_INFO)/$(THISAPP)
@@ -71,10 +71,10 @@ ifeq "$(PASS)" "1"
   TARGET = $(DIR_INFO)/$(THISAPP)-tools1
   EXTRA_CONFIG = \
 	--target=$(CROSSTARGET) \
-	--prefix=/tools \
+	--prefix=$(TOOLS_DIR) \
 	--with-sysroot=$(ROOT) \
-	--with-local-prefix=/tools \
-	--with-native-system-header-dir=/tools/include \
+	--with-local-prefix=$(TOOLS_DIR) \
+	--with-native-system-header-dir=$(TOOLS_DIR)/include \
 	--disable-nls \
 	--disable-shared \
 	--disable-decimal-float \
@@ -107,9 +107,9 @@ ifeq "$(PASS)" "2"
 	RANLIB="$(CROSSTARGET)-ranlib"
   EXTRA_CONFIG = \
 	--build=$(BUILDTARGET) \
-	--prefix=/tools \
-	--with-local-prefix=/tools \
-	--with-native-system-header-dir=/tools/include \
+	--prefix=$(TOOLS_DIR) \
+	--with-local-prefix=$(TOOLS_DIR) \
+	--with-native-system-header-dir=$(TOOLS_DIR)/include \
 	--enable-languages=c,c++ \
 	--disable-libstdcxx-pch \
 	--disable-libgomp
@@ -130,13 +130,13 @@ else
 	RANLIB="$(CROSSTARGET)-ranlib"
   EXTRA_CONFIG = \
 	--host=$(CROSSTARGET) \
-	--prefix=/tools \
+	--prefix=$(TOOLS_DIR) \
 	--with-sysroot=$(ROOT) \
 	--disable-shared \
 	--disable-nls \
 	--disable-libstdcxx-threads \
 	--disable-libstdcxx-pch \
-	--with-gxx-include-dir=/tools/$(CROSSTARGET)/include/c++/$(VER)
+	--with-gxx-include-dir=$(TOOLS_DIR)/$(CROSSTARGET)/include/c++/$(VER)
   EXTRA_MAKE = 
   EXTRA_INSTALL = 
 endif
@@ -234,18 +234,18 @@ ifeq "$(TOOLCHAIN)" "1"
 
 ifeq "$(PASS)" "2"
 	cd $(DIR_APP) && cat gcc/limitx.h gcc/glimits.h gcc/limity.h > \
-			`dirname $$(/tools/bin/$(CROSSTARGET)-gcc -print-libgcc-file-name)`/include-fixed/limits.h
+			`dirname $$($(TOOLS_DIR)/bin/$(CROSSTARGET)-gcc -print-libgcc-file-name)`/include-fixed/limits.h
 endif
 
 	for file in $$(find $(DIR_APP)/gcc/config -name linux64.h -o -name linux.h \
 			-o -name sysv4.h -o -name linux-eabi.h -o -name linux-elf.h -o -name aarch64-linux.h); do \
 		echo "Processing $${file}..."; \
 		sed -i $${file} \
-			-e 's@/lib\(64\)\?\(32\)\?/ld@/tools&@g' \
-			-e 's@/usr@/tools@g'; \
+			-e 's@/lib\(64\)\?\(32\)\?/ld@$(TOOLS_DIR)&@g' \
+			-e 's@/usr@$(TOOLS_DIR)@g'; \
 		echo '#undef STANDARD_STARTFILE_PREFIX_1' >> $${file}; \
 		echo '#undef STANDARD_STARTFILE_PREFIX_2' >> $${file}; \
-		echo '#define STANDARD_STARTFILE_PREFIX_1 "/tools/lib/"' >> $${file}; \
+		echo '#define STANDARD_STARTFILE_PREFIX_1 "$(TOOLS_DIR)/lib/"' >> $${file}; \
 		echo '#define STANDARD_STARTFILE_PREFIX_2 ""' >> $${file}; \
 	done
 endif
@@ -271,18 +271,18 @@ endif
 
 ifeq "$(TOOLCHAIN)" "1"
  ifeq "$(PASS)" "1"
-	ln -svf libgcc.a $$(/tools/bin/$(CROSSTARGET)-gcc -print-libgcc-file-name | sed 's/libgcc/&_eh/')
+	ln -svf libgcc.a $$($(TOOLS_DIR)/bin/$(CROSSTARGET)-gcc -print-libgcc-file-name | sed 's/libgcc/&_eh/')
  endif
 
  ifeq "$(PASS)" "2"
-	ln -svf gcc /tools/bin/cc
+	ln -svf gcc $(TOOLS_DIR)/bin/cc
 	# remove gdb python files from libdir
-	rm -rf /tools/lib/*-gdb.py
+	rm -rf $(TOOLS_DIR)/lib/*-gdb.py
  endif
 
  ifeq "$(PASS)" "L"
 	# Workaround for https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70936
-	sed -e "s/^#include_next/#include/" -i /tools/$(CROSSTARGET)/include/c++/$(VER)/cstdlib
+	sed -e "s/^#include_next/#include/" -i $(TOOLS_DIR)/$(CROSSTARGET)/include/c++/$(VER)/cstdlib
  endif
 
 else # NON-TOOLCHAIN