Fix mingw32 build warnings

Work around buffer and ioctlsocket argument type signedness problems
Suppress a prototype which is unused on mingw32
Expand a macro to avoid warnings from some GCC versions

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/misc.c b/misc.c
index 13ceb0c..fd8b764 100644
--- a/misc.c
+++ b/misc.c
@@ -762,7 +762,7 @@ void fd_nonblock(int fd)
 {
 #ifdef FIONBIO
 #ifdef _WIN32
-    long opt = 1;
+    unsigned long opt = 1;
 #else
     int opt = 1;
 #endif
@@ -780,7 +780,11 @@ void fd_nonblock(int fd)
 void fd_block(int fd)
 {
 #ifdef FIONBIO
+#ifdef _WIN32
+    unsigned long opt = 0;
+#else
     int opt = 0;
+#endif
 
     ioctlsocket(fd, FIONBIO, &opt);
 #else