From 36bdf4c529cf89bfe54841e82c837503fd1065fe Mon Sep 17 00:00:00 2001
From: Martins Mozeiko <martins.mozeiko@gmail.com>
Date: Sat, 28 Oct 2017 12:24:12 -0700
Subject: [PATCH] fix warning in VS2017 build

---
 build.cmd     | 2 +-
 pkg2zip_zip.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/build.cmd b/build.cmd
index b206389..949cf34 100644
--- a/build.cmd
+++ b/build.cmd
@@ -3,7 +3,7 @@
 call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\Common7\Tools\VsDevCmd.bat" -arch=amd64 -host_arch=amd64
 cd "%~dp0"
 
-set CL=/nologo /errorReport:none /Gm- /GF /GS- /MT /W4 /wd4324
+set CL=/nologo /errorReport:none /Gm- /GF /GS- /MT /W4 /WX /wd4324
 set LINK=/errorReport:none /INCREMENTAL:NO
 
 set CL=%CL% /Ox
diff --git a/pkg2zip_zip.c b/pkg2zip_zip.c
index 5aaad4b..8b1de1c 100644
--- a/pkg2zip_zip.c
+++ b/pkg2zip_zip.c
@@ -287,7 +287,7 @@ void zip_close(zip* z)
         set16le(extra + 0, 1);
         // size of this "extra" block
         uint32_t extra_offset = 2 * sizeof(uint16_t);
-        set16le(extra + 2, extra_size - extra_offset);
+        set16le(extra + 2, (uint16_t)(extra_size - extra_offset));
         if (size > 0xffffffff)
         {
             // original uncompressed file size