util: Remove include of windows.h in memstream.h

Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18425>

src/util/memstream.c

@@ -27,6 +27,10 @@
 
 #include <stdlib.h>
 
+#ifdef _WIN32
+#include <windows.h>
+#endif
+
 bool
 u_memstream_open(struct u_memstream *mem, char **bufp, size_t *sizep)
 {

src/util/memstream.h

@@ -30,8 +30,13 @@
 
 #include <stdbool.h>
 #include <stdio.h>
-#ifdef _WIN32
-#include <windows.h>
+#include <limits.h> /* PATH_MAX */
+
+#ifdef _MSC_VER
+#include <stdlib.h>
+#ifndef PATH_MAX
+#define PATH_MAX _MAX_PATH /* Equivalent to MAX_PATH from minwindef.h */
+#endif
 #endif
 
 #ifdef __cplusplus
@@ -44,7 +49,7 @@ struct u_memstream
 #ifdef _WIN32
    char **bufp;
    size_t *sizep;
-   char temp[MAX_PATH];
+   char temp[PATH_MAX];
 #endif
 };