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-rw-r--r--lib/zstd/Makefile18
1 files changed, 18 insertions, 0 deletions
diff --git a/lib/zstd/Makefile b/lib/zstd/Makefile
new file mode 100644
index 000000000000..dd0a359c135b
--- /dev/null
+++ b/lib/zstd/Makefile
@@ -0,0 +1,18 @@
+obj-$(CONFIG_ZSTD_COMPRESS) += zstd_compress.o
+obj-$(CONFIG_ZSTD_DECOMPRESS) += zstd_decompress.o
+
+ccflags-y += -O3
+
+# Object files unique to zstd_compress and zstd_decompress
+zstd_compress-y := fse_compress.o huf_compress.o compress.o
+zstd_decompress-y := huf_decompress.o decompress.o
+
+# These object files are shared between the modules.
+# Always add them to zstd_compress.
+# Unless both zstd_compress and zstd_decompress are built in
+# then also add them to zstd_decompress.
+zstd_compress-y += entropy_common.o fse_decompress.o zstd_common.o
+
+ifneq ($(CONFIG_ZSTD_COMPRESS)$(CONFIG_ZSTD_DECOMPRESS),yy)
+ zstd_decompress-y += entropy_common.o fse_decompress.o zstd_common.o
+endif