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-rw-r--r--toolchain/Makefile12
1 files changed, 12 insertions, 0 deletions
diff --git a/toolchain/Makefile b/toolchain/Makefile
index 6ee881155e..34abda2376 100644
--- a/toolchain/Makefile
+++ b/toolchain/Makefile
@@ -69,6 +69,18 @@ ifneq ($(ARCH),)
endif
endif
+ifdef CONFIG_BUILDBOT
+ $(STAGING_DIR)/.toolchain_ver_check: $(TMP_DIR)/.build
+ cd "$(TOPDIR)"; git log --format=%h -1 > $(TMP_DIR)/.toolchain_ver_check
+ cmp -s $(TMP_DIR)/.toolchain_ver_check $@ || \
+ rm -rf $(BUILD_DIR) $(STAGING_DIR) $(TOOLCHAIN_DIR) $(BUILD_DIR_TOOLCHAIN)
+ mkdir -p $(STAGING_DIR)
+ mv $(TMP_DIR)/.toolchain_ver_check $@
+
+$(STAGING_DIR)/.prepared: $(STAGING_DIR)/.toolchain_ver_check
+$(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed: $(STAGING_DIR)/.prepared
+endif
+
# prerequisites for the individual targets
$(curdir)/ := .config prereq
$(curdir)//compile = $(STAGING_DIR)/.prepared $(TOOLCHAIN_DIR)/info.mk $(tools/stamp-compile)