3 files changed, 35 insertions, 2 deletions

diff --git a/meta/recipes-support/lz4/lz4/reproducibility.patch b/meta/recipes-support/lz4/lz4/reproducibility.patch
new file mode 100644
index 0000000000..c138986da8
--- /dev/null
+++ b/meta/recipes-support/lz4/lz4/reproducibility.patch
@@ -0,0 +1,33 @@
+lib/Makefile: Fix static library reproducibility
+
+The static library contents varies depending of the order of the object files on disk meaning
+it isn't reproducible.
+
+To avoid this, use the SRCFILES values which are already sorted, mapped to the object names
+instead.
+
+
+Upstream-Status: Submitted [https://github.com/lz4/lz4/pull/1497]
+Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
+
+Index: git/lib/Makefile
+===================================================================
+--- git.orig/lib/Makefile
++++ git/lib/Makefile
+@@ -55,6 +55,7 @@ CFLAGS   = $(DEBUGFLAGS) $(USERCFLAGS)
+ ALLFLAGS = $(CFLAGS) $(CPPFLAGS) $(LDFLAGS)
+ 
+ SRCFILES := $(sort $(wildcard *.c))
++OBJFILES = $(SRCFILES:.c=.o)
+ 
+ include ../Makefile.inc
+ 
+@@ -102,7 +103,7 @@ liblz4.a: $(SRCFILES)
+ ifeq ($(BUILD_STATIC),yes)  # can be disabled on command line
+        @echo compiling static library
+        $(COMPILE.c) $^
+-       $(AR) rcs $@ *.o
++       $(AR) rcs $@ $(OBJFILES)
+ endif
+ 
+ ifeq ($(WINBASED),yes)
diff --git a/meta/recipes-support/lz4/files/run-ptest b/meta/recipes-support/lz4/lz4/run-ptest
index f4a46a4f2c..f4a46a4f2c 100644
--- a/meta/recipes-support/lz4/files/run-ptest
+++ b/meta/recipes-support/lz4/lz4/run-ptest
diff --git a/meta/recipes-support/lz4/lz4_1.10.0.bb b/meta/recipes-support/lz4/lz4_1.10.0.bb
index 40768fb292..3b98adf42e 100644
--- a/meta/recipes-support/lz4/lz4_1.10.0.bb
+++ b/meta/recipes-support/lz4/lz4_1.10.0.bb
@@ -13,8 +13,8 @@ PE = "1"
 SRCREV = "ebb370ca83af193212df4dcbadcc5d87bc0de2f0"
 
 SRC_URI = "git://github.com/lz4/lz4.git;branch=release;protocol=https \
-           file://run-ptest \
-           "
+           file://reproducibility.patch \
+           file://run-ptest"
 UPSTREAM_CHECK_GITTAGREGEX = "v(?P<pver>.*)"
 
 S = "${WORKDIR}/git"