dfports/devel/sdl12 does not compile

[Rum <rumko@xxxxxxxxxxxxxxxxxxxxxxxxx>]

when i try to do make install clean in /usr/ports/devel/sdl12 i get:

SDL_yuv_mmx.c: In function `ColorRGBDitherYV12MMX1X':
SDL_yuv_mmx.c:242: syntax error before `['
SDL_yuv_mmx.c: In function `Color565DitherYV12MMX1X':
SDL_yuv_mmx.c:423: syntax error before `['
SDL_yuv_mmx.c: At top level:
SDL_yuv_mmx.c:39: warning: `_MMX_0080w' defined but not used
SDL_yuv_mmx.c:40: warning: `_MMX_00FFw' defined but not used
SDL_yuv_mmx.c:41: warning: `_MMX_FF00w' defined but not used
SDL_yuv_mmx.c:43: warning: `_MMX_Ycoeff' defined but not used
SDL_yuv_mmx.c:45: warning: `_MMX_UbluRGB' defined but not used
SDL_yuv_mmx.c:46: warning: `_MMX_VredRGB' defined but not used
SDL_yuv_mmx.c:47: warning: `_MMX_UgrnRGB' defined but not used
SDL_yuv_mmx.c:48: warning: `_MMX_VgrnRGB' defined but not used
SDL_yuv_mmx.c:50: warning: `_MMX_Ublu5x5' defined but not used
SDL_yuv_mmx.c:51: warning: `_MMX_Vred5x5' defined but not used
SDL_yuv_mmx.c:52: warning: `_MMX_Ugrn555' defined but not used
SDL_yuv_mmx.c:53: warning: `_MMX_Vgrn555' defined but not used
SDL_yuv_mmx.c:54: warning: `_MMX_Ugrn565' defined but not used
SDL_yuv_mmx.c:55: warning: `_MMX_Vgrn565' defined but not used
SDL_yuv_mmx.c:57: warning: `_MMX_red555' defined but not used
SDL_yuv_mmx.c:58: warning: `_MMX_red565' defined but not used
SDL_yuv_mmx.c:59: warning: `_MMX_grn555' defined but not used
SDL_yuv_mmx.c:60: warning: `_MMX_grn565' defined but not used
SDL_yuv_mmx.c:61: warning: `_MMX_blu5x5' defined but not used
*** Error code 1

Stop in /usr/dfports/devel/sdl12/work/SDL-1.2.7/src/video.
*** Error code 1

Stop in /usr/dfports/devel/sdl12/work/SDL-1.2.7/src/video.
*** Error code 1

Stop in /usr/dfports/devel/sdl12/work/SDL-1.2.7/src.
*** Error code 1

Stop in /usr/dfports/devel/sdl12/work/SDL-1.2.7.
*** Error code 1


what to do to fix this?