libjpeg(-turbo): fix on mingw

By porting a patch from msys2.

pkgs/development/libraries/libjpeg-turbo/default.nix

@@ -8,6 +8,10 @@ stdenv.mkDerivation rec {
     sha256 = "0gi349hp1x7mb98s4mf66sb2xay2kjjxj9ihrriw0yiy0k9va6sj";
   };
 
+  patches =
+    stdenv.lib.optional (stdenv.cross.libc or null == "msvcrt")
+      ./mingw-boolean.patch;
+
   outputs = [ "dev" "out" "doc" "bin" ];
 
   nativeBuildInputs = [ nasm ];

pkgs/development/libraries/libjpeg-turbo/mingw-boolean.patch

@@ -0,0 +1,19 @@
+Ported to updated libjpeg-turbo from
+https://github.com/msys2/MINGW-packages/blob/master/mingw-w64-libjpeg-turbo/jpeg-typedefs.patch
+--- a/jmorecfg.h	2012-02-10 06:47:55 +0300
++++ b/jmorecfg.h	2012-05-03 10:29:13 +0400
+@@ -224,7 +224,13 @@
+  * Defining HAVE_BOOLEAN before including jpeglib.h should make it work.
+  */
+ 
+-#ifndef HAVE_BOOLEAN
++#if defined(_WIN32) && !defined(HAVE_BOOLEAN)
++#ifndef __RPCNDR_H__
++typedef unsigned char boolean;
++#endif
++#define HAVE_BOOLEAN
++#endif
++#if !defined(HAVE_BOOLEAN) && !defined(__RPCNDR_H__)
+ typedef int boolean;
+ #endif
+ #ifndef FALSE			/* in case these macros already exist */