patch 8.1.1232: can't build on MS-Windows
Problem: Can't build on MS-Windows.
Solution: Define process_still_running.
diff --git a/src/proto/os_win32.pro b/src/proto/os_win32.pro
index c825c54..f251640 100644
--- a/src/proto/os_win32.pro
+++ b/src/proto/os_win32.pro
@@ -19,7 +19,7 @@
int mch_get_user_name(char_u *s, int len);
void mch_get_host_name(char_u *s, int len);
long mch_get_pid(void);
-int mch_process_running(pid_t pid);
+int mch_process_running(long pid);
int mch_dirname(char_u *buf, int len);
long mch_getperm(char_u *name);
int mch_setperm(char_u *name, long perm);