--- zzzz-none-000/linux-5.4.213/fs/jffs2/Makefile	2022-09-15 10:04:56.000000000 +0000
+++ alder-5690pro-762/linux-5.4.213/fs/jffs2/Makefile	2024-08-14 09:02:08.000000000 +0000
@@ -19,4 +19,7 @@
 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