Built SDL2_image and _mixer static

libsdl2_mixer/external/opusfile-0.10/001-opusfile.git-567165a.patch

@@ -0,0 +1,40 @@
+From 567165a7feb9b4e540dc9d257fd276849d660060 Mon Sep 17 00:00:00 2001
+From: James Zern <jzern@google.com>
+Date: Thu, 7 Dec 2017 15:24:48 -0800
+Subject: [PATCH] op_pcm_seek: Fix int64 overflow
+
+Calculate discard_count directly with op_granpos_diff. this works
+because _pcm_offset == (target_gp - pcm_start) and diff == (gp -
+pcm_start).
+
+Signed-off-by: Timothy B. Terriberry <tterribe@xiph.org>
+---
+ src/opusfile.c | 7 +++----
+ 1 file changed, 3 insertions(+), 4 deletions(-)
+
+diff --git a/src/opusfile.c b/src/opusfile.c
+index 72f1272..140503e 100644
+--- a/src/opusfile.c
++++ b/src/opusfile.c
+@@ -2597,15 +2597,14 @@ int op_pcm_seek(OggOpusFile *_of,ogg_int64_t _pcm_offset){
+     ogg_int64_t gp;
+     gp=_of->prev_packet_gp;
+     if(OP_LIKELY(gp!=-1)){
+-      int nbuffered;
++      ogg_int64_t discard_count;
++      int         nbuffered;
+       nbuffered=OP_MAX(_of->od_buffer_size-_of->od_buffer_pos,0);
+       OP_ALWAYS_TRUE(!op_granpos_add(&gp,gp,-nbuffered));
+       /*We do _not_ add cur_discard_count to gp.
+         Otherwise the total amount to discard could grow without bound, and it
+          would be better just to do a full seek.*/
+-      if(OP_LIKELY(!op_granpos_diff(&diff,gp,pcm_start))){
+-        ogg_int64_t discard_count;
+-        discard_count=_pcm_offset-diff;
++      if(OP_LIKELY(!op_granpos_diff(&discard_count,target_gp,gp))){
+         /*We use a threshold of 90 ms instead of 80, since 80 ms is the
+            _minimum_ we would have discarded after a full seek.
+           Assuming 20 ms frames (the default), we'd discard 90 ms on average.*/
+-- 
+2.1.4
+