Add platform-specific int types for MingW32. After a patch from John Edwards.
Add platform-specific int types for MingW32. After a patch from John Edwards.

Jan posted a different patch:

  http://www.xiph.org/archives/vorbis-dev/200402/0039.html

Most everyone (but MSVC) ships stdint types in either stdint.h or inttypes.h these days, but there
can be some tricky collisions with older installations, so I'd rather avoid a new portability
refinement tail this close to release.


git-svn-id: a21e2c1a9f1a66aa2b49a2fb7314df0f83771e9b@5948 0101bb08-14d6-0310-b084-bc0e0c8e3800

OffByOneStudios/ogg,KTXSoftware/ogg,libninjam/libogg,spritebuilder/ogg,pcwalton/ogg,ahmedammar/platform_external_gst_ogg,TechSmith/libogg,wighawag/ogg,libninjam/libogg,KTXSoftware/ogg,Rillke/libogg,OffByOneStudios/ogg,oss-forks/libogg,oss-forks/libogg,ShiftMediaProject/ogg,TechSmith/libogg,Rillke/libogg,spritebuilder/ogg,Distrotech/libogg,TitaniumEagle/libogg,TitaniumEagle/libogg,ahmedammar/platform_external_gst_ogg,pcwalton/ogg,gcp/libogg,wighawag/ogg,Distrotech/libogg,gcp/libogg,ShiftMediaProject/ogg,pcwalton/ogg,oss-forks/libogg