mesa: more include fixes

mostly from void-linux (thanks!)

pkgs/development/libraries/mesa/default.nix

@@ -92,7 +92,7 @@ let self = stdenv.mkDerivation {
   patches = [
     ./glx_ro_text_segm.patch # fix for grsecurity/PaX
     ./symlink-drivers.patch
-    ./missing-include.patch # dev_t needs sys/stat.h, fixes build w/musl
+    ./missing-includes.patch # dev_t needs sys/stat.h, time_t needs time.h, etc.-- fixes build w/musl
   ];
 
   outputs = [ "out" "dev" "drivers" "osmesa" ];

pkgs/development/libraries/mesa/missing-includes.patch

@@ -0,0 +1,55 @@
+--- ./src/gallium/winsys/svga/drm/vmw_screen.h.orig
++++ ./src/gallium/winsys/svga/drm/vmw_screen.h
+@@ -34,7 +34,7 @@
+ #ifndef VMW_SCREEN_H_
+ #define VMW_SCREEN_H_
+
+-
++#include <sys/stat.h>
+ #include "pipe/p_compiler.h"
+ #include "pipe/p_state.h"
+
+--- ./src/gallium/state_trackers/nine/threadpool.h.orig	2015-05-07 14:10:53.443337212 +0200
++++ ./src/gallium/state_trackers/nine/threadpool.h	2015-05-07 14:11:04.210307653 +0200
+@@ -24,6 +24,8 @@
+ #ifndef _THREADPOOL_H_
+ #define _THREADPOOL_H_
+
++#include <pthread.h>
++
+ #define MAXTHREADS 1
+
+ struct threadpool {
+--- ./src/util/rand_xor.c.orig	2017-06-20 00:38:57.199474067 +0200
++++ ./src/util/rand_xor.c	2017-06-20 00:40:31.351279557 +0200
+@@ -23,7 +23,9 @@
+  */
+
+ #if defined(__linux__)
++#include <sys/types.h>
+ #include <sys/file.h>
++#include <sys/stat.h>
+ #include <unistd.h>
+ #include <fcntl.h>
+ #else
+--- ./src/mesa/drivers/dri/i965/brw_bufmgr.h
++++ ./src/mesa/drivers/dri/i965/brw_bufmgr.h
+@@ -37,6 +37,7 @@
+ #include <stdbool.h>
+ #include <stdint.h>
+ #include <stdio.h>
++#include <time.h>
+ #include "util/u_atomic.h"
+ #include "util/list.h"
+
+--- ./src/amd/vulkan/winsys/amdgpu/radv_amdgpu_winsys.h
++++ ./src/amd/vulkan/winsys/amdgpu/radv_amdgpu_winsys.h
+@@ -28,6 +28,8 @@
+ #ifndef RADV_AMDGPU_WINSYS_H
+ #define RADV_AMDGPU_WINSYS_H
+
++#include <sys/types.h>
++
+ #include "radv_radeon_winsys.h"
+ #include "ac_gpu_info.h"
+ #include "addrlib/addrinterface.h"<Paste>