From 1ca6f8dfdf0f62051839ee46d28038570212352e Mon Sep 17 00:00:00 2001
From: Imbus <aa>
Date: Sat, 21 Feb 2026 08:06:37 +0100
Subject: [PATCH] Fix warning in musl related to ioctl

Ioctl's in musl take ints, while glibc take unsigned longs. When not
using glibc, default to casting the ioctl number to an int. Tests
passing.
---
 writeimg.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/writeimg.c b/writeimg.c
index f0139ad..2219acb 100644
--- a/writeimg.c
+++ b/writeimg.c
@@ -278,7 +278,11 @@ int main(int argc, char *argv[]) {
             exit(EXIT_FAILURE);
         }
 
+#ifdef __GLIBC__
         if (ioctl(fd, BLKGETSIZE64, &device_size) < 0) {
+#else /* With musl, ioctl's take ints, kheaders provide unsigned longs. Passes tests. */
+        if (ioctl(fd, (int)BLKGETSIZE64, &device_size) < 0) {
+#endif
             perror("ioctl");
             close(fd);
             exit(EXIT_FAILURE);