--- Makefile.orig	2023-10-08 13:55:19 UTC
+++ Makefile
@@ -4,7 +4,7 @@ include Makefile.common
 $(info OS_NAME:$(OS_NAME), OS_ARCH:$(OS_ARCH))
 
 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
 
@@ -17,7 +17,6 @@ SNAPPY_GIT_REPO_URL:=https://github.com/google/snappy
 # Change this variable to use a specific git commit
 SNAPPY_GIT_REV:=$(SNAPPY_VERSION)
 SNAPPY_UNPACKED:=$(TARGET)/snappy-extracted.log
-SNAPPY_GIT_UNPACKED:=$(TARGET)/snappy-git-extracted.log
 SNAPPY_CMAKE_CACHE=$(SNAPPY_OUT)/CMakeCache.txt
 
 BITSHUFFLE_ARCHIVE:=$(TARGET)/bitshuffle-$(BITSHUFFLE_VERSION).tar.gz
@@ -74,21 +73,12 @@ $(SNAPPY_UNPACKED): $(SNAPPY_ARCHIVE)
 	$(TAR) xvfz $< -C $(TARGET)
 	touch $@
 
-$(SNAPPY_GIT_UNPACKED):
+$(SNAPPY_CMAKE_CACHE): $(SNAPPY_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)
-	cd $(SNAPPY_SRC_DIR) && git submodule update --init
-	touch $@
-
-$(SNAPPY_CMAKE_CACHE): $(SNAPPY_GIT_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)
 
@@ -104,7 +94,7 @@ $(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)