IMPORT: slz: declare len to fix debug build when optimal match is enabled
Building with -DFIND_OPTIMAL_MATCH would fail on undeclared "len".
This one likely vanished in some cleanup.
This is libslz upstream commit 1ea20360715e1ad0cd81db83fa4361310716b8cc
diff --git a/src/slz.c b/src/slz.c
index 0ca9d27..1d6032e 100644
--- a/src/slz.c
+++ b/src/slz.c
@@ -578,6 +578,8 @@
int max_lookup = 2; // 0 = no limit
for (scan = pos - 1; scan < pos && (unsigned long)(pos - scan - 1) < 32768; scan--) {
+ int len;
+
if (*(uint32_t *)(in + scan) != word)
continue;