--- Makefile.orig	2020-05-06 17:26:51 UTC
+++ Makefile
@@ -2,7 +2,7 @@
 include Makefile.common
 
 MVN:=mvn
-SBT:=./sbt
+SBT:=sbt -Dsbt.ivy.home=$(SBT_IVY_HOME) -Dsbt.offline=true -Dsbt.boot.directory=$(SBT_BOOT_DIR) -Dsbt.coursier=false -Dsbt.global.base=$(SBT_GLOBAL_DIR)
 
 all: snappy
 
@@ -25,7 +25,6 @@ BITSHUFFLE_UNPACKED:=$(TARGET)/bitshuffle-extracted.lo
 
 $(BITSHUFFLE_ARCHIVE):
 	@mkdir -p $(@D)
-	curl -L -o$@ https://github.com/kiyo-masui/bitshuffle/archive/$(BITSHUFFLE_VERSION).tar.gz
 
 $(BITSHUFFLE_UNPACKED): $(BITSHUFFLE_ARCHIVE)
 	$(TAR) xvfz $< -C $(TARGET)
@@ -65,26 +64,25 @@ endif
 
 $(SNAPPY_ARCHIVE):
 	@mkdir -p $(@D)
-	curl -L -o$@ https://github.com/google/snappy/releases/download/$(SNAPPY_VERSION)/snappy-$(SNAPPY_VERSION).tar.gz
 
 $(SNAPPY_UNPACKED): $(SNAPPY_ARCHIVE)
 	$(TAR) xvfz $< -C $(TARGET)
 	touch $@
 
-$(SNAPPY_GIT_UNPACKED):
-	@mkdir -p $(SNAPPY_OUT)
-	rm -rf $(SNAPPY_SRC_DIR)
-	@mkdir -p $(SNAPPY_SRC_DIR)
-	git clone $(SNAPPY_GIT_REPO_URL) $(SNAPPY_SRC_DIR)
-	git --git-dir=$(SNAPPY_SRC_DIR)/.git --work-tree=$(SNAPPY_SRC_DIR) checkout -b local/snappy-$(SNAPPY_VERSION) $(SNAPPY_GIT_REV)
-	touch $@
+#$(SNAPPY_GIT_UNPACKED):
+#	@mkdir -p $(SNAPPY_OUT)
+#	rm -rf $(SNAPPY_SRC_DIR)
+#	@mkdir -p $(SNAPPY_SRC_DIR)
+#	git clone $(SNAPPY_GIT_REPO_URL) $(SNAPPY_SRC_DIR)
+#	git --git-dir=$(SNAPPY_SRC_DIR)/.git --work-tree=$(SNAPPY_SRC_DIR) checkout -b local/snappy-$(SNAPPY_VERSION) $(SNAPPY_GIT_REV)
+#	touch $@
 
-$(SNAPPY_CMAKE_CACHE): $(SNAPPY_GIT_UNPACKED)
+$(SNAPPY_CMAKE_CACHE): $(SNAPPY_UNPACKED)
 	@mkdir -p $(SNAPPY_OUT)
 	cd $(SNAPPY_OUT) && cmake $(SNAPPY_CMAKE_OPTS) ../../$(SNAPPY_SRC_DIR)
 	touch $@
 
-jni-header: $(SNAPPY_GIT_UNPACKED) $(BITSHUFFLE_UNPACKED) $(SRC)/org/xerial/snappy/SnappyNative.h $(SRC)/org/xerial/snappy/BitShuffleNative.h
+jni-header: $(SNAPPY_UNPACKED) $(BITSHUFFLE_UNPACKED) $(SRC)/org/xerial/snappy/SnappyNative.h $(SRC)/org/xerial/snappy/BitShuffleNative.h
 
 snappy-header: $(SNAPPY_CMAKE_CACHE)
 
@@ -100,7 +98,7 @@ $(TARGET)/jni-classes/org/xerial/snappy/BitShuffleNati
 
 $(SRC)/org/xerial/snappy/BitShuffleNative.h: $(TARGET)/jni-classes/org/xerial/snappy/BitShuffleNative.class
 
-$(SNAPPY_SRC): $(SNAPPY_GIT_UNPACKED)
+$(SNAPPY_SRC): $(SNAPPY_UNPACKED)
 
 # aarch64 can use big-endian optimzied code
 ifeq ($(OS_ARCH),aarch64)