readd workaround, needed f.e. for mips targets

toolchain/gcc/Makefile

@@ -160,6 +160,8 @@ $(WRKBUILD)/.compiled: $(GCC_BUILD_DIR_FINAL)/.configured
 
 $(WRKBUILD)/.installed: $(WRKBUILD)/.compiled
 	PATH='$(TARGET_PATH)' $(MAKE) -C $(GCC_BUILD_DIR_FINAL) install
+	# workaround if you cross-compile binutils
+	@-rm $(STAGING_TARGET_DIR)/lib/libiberty.a $(STAGING_TARGET_DIR)/usr/lib/libiberty.a
 	# Set up the symlinks to enable lying about target name.
 	set -e; \
 	(cd $(STAGING_HOST_DIR); \