Log Message:
Update to SDL-1.2.7.

Changes:
* SDL no longer sets a fatal signal handler for SIGPIPE
* Fixed modifier key state on MacOS X
* Added support for remote XVideo
* Fixed static linking on MacOS X
* Fixed compiling with broken Linux 2.6 headers
* Fixed mouse cursor visibility and focus events on MacOS X
* Added support for /dev/joy* on Free/Net/OpenBSD
* Fixed problems with CD-ROM audio playback on MacOS X 10.1
* Added dynamic GL library loading to MacOS Carbon support
* Added function to create RWops from const memory: SDL_RWFromConstMem()
* Fixed build problems with newer versions of automake
* Fixed MacOS X libtool framework support
* Added CPU feature detection functions to SDL_cpuinfo.h
* Fixed illegal instruction crash using 3DNow on Intel processors
* Fixed asm issues with mmx.h and gcc 3.3
* Fixed crash calling app defined window proc
* Fixed long long constant warnings in GCC 3.3.1
* Fixed joystick open problems on BSD
* Fixed X11 mode line crash with only one video mode

Fixes PR pkg/22462.

Okayed by wiz@.