--- zzzz-none-000/linux-4.4.60/fs/jffs2/Makefile	2017-04-08 07:53:53.000000000 +0000
+++ jet-2400-727/linux-4.4.60/fs/jffs2/Makefile	2021-03-17 14:36:41.000000000 +0000
@@ -18,4 +18,7 @@
 jffs2-$(CONFIG_JFFS2_RTIME)	+= compr_rtime.o
 jffs2-$(CONFIG_JFFS2_ZLIB)	+= compr_zlib.o
 jffs2-$(CONFIG_JFFS2_LZO)	+= compr_lzo.o
+jffs2-$(CONFIG_JFFS2_LZMA)      += compr_lzma.o
 jffs2-$(CONFIG_JFFS2_SUMMARY)   += summary.o
+
+CFLAGS_compr_lzma.o += -Iinclude/linux -Ilib/lzma