https://github.com/intel/QATzip/pull/131 but the patch below is not merged
https://github.com/intel/QATzip/pull/119 using __attribute__((unused))

From d2a9a7694b4785f67d6f95b49c20f6b3984ffe99 Mon Sep 17 00:00:00 2001
From: "Z. Liu" <zhixu.liu@gmail.com>
Date: Fri, 21 Mar 2025 03:01:53 +0000
Subject: [PATCH] silent unused variable warning

such as:
> error: variable 'sleep_cnt' set but not used [-Werror,-Wunused-but-set-variable]

Signed-off-by: Z. Liu <zhixu.liu@gmail.com>

diff --git a/src/qatzip/src/qatzip.c b/src/qatzip/src/qatzip.c
index 1a12973..ac73dcd 100755
--- a/src/qatzip/src/qatzip.c
+++ b/src/qatzip/src/qatzip.c
@@ -1495,6 +1495,7 @@ static void *doCompressOut(void *in)
     CpaDcRqResults *resl;
     CpaStatus sts;
     unsigned int sleep_cnt = 0;
+    (void)sleep_cnt;
     QzSession_T *sess = (QzSession_T *) in;
     QzSess_T *qz_sess = (QzSess_T *) sess->internal;
     long dest_avail_len = (long)(*qz_sess->dest_sz - qz_sess->qz_out_len);
@@ -2124,6 +2125,7 @@ static void *__attribute__((cold)) doDecompressOut(void *in)
     CpaDcRqResults *resl;
     CpaStatus sts;
     unsigned int sleep_cnt = 0;
+    (void)sleep_cnt;
     unsigned int done = 0;
     unsigned int src_send_sz;
     unsigned int dest_avail_len;
diff --git a/src/qatzip/test/main.c b/src/qatzip/test/main.c
index 8ba3384..19ecacb 100755
--- a/src/qatzip/test/main.c
+++ b/src/qatzip/test/main.c
@@ -209,6 +209,7 @@ QzBlock_T *parseFormatOption(char *buf)
     char *saveptr, *sub_saveptr;
 
     int i, j, fmt_idx;
+    (void)j;
     unsigned int fmt_found = 0;
     QzBlock_T *blk = NULL;
     QzBlock_T *head, *prev, *r;
-- 
2.49.1