# From https://github.com/msys2/MINGW-packages/commit/3a51faadb8bacf06c7b7fd84b2ea80775d1a8b0d

# this is an advanced patch to fix building v5.38
# see for details
# this patch should be removed with the next version 
diff --git a/src/compress.c b/src/compress.c
index 33ce2bc..f172eda 100644
--- a/src/compress.c
+++ b/src/compress.c
@@ -378,7 +378,7 @@
 sread(int fd, void *buf, size_t n, int canbepipe __attribute__((__unused__)))
 {
 	ssize_t rv;
-#ifdef FIONREAD
+#if defined(FIONREAD) && !defined(__MINGW32__) && !defined(WIN32)
 	int t = 0;
 #endif
 	size_t rn = n;
@@ -386,7 +386,7 @@
 	if (fd == STDIN_FILENO)
 		goto nocheck;
 
-#ifdef FIONREAD
+#if defined(FIONREAD) && !defined(__MINGW32__) && !defined(WIN32)
 	if (canbepipe && (ioctl(fd, FIONREAD, &t) == -1 || t == 0)) {
 #ifdef FD_ZERO
 		ssize_t cnt;