compiling X11 (MesaLib) for alpha failed

[Kurt Schreiner <ks%ub.uni-mainz.de@localhost>]

Hi,

build.sh ... distribution for alpha (on amd64) fails while compiling
MesaLib/dist/src/mesa/drivers/dri/sis:

dependall ===> external/mit/xorg/lib/dri/sis
     create  sis/sis_clear.d
In file included from 
/usr/xsrc/external/mit/MesaLib/dist/src/mesa/drivers/dri/sis/sis_clear.c:35:
/usr/xsrc/external/mit/MesaLib/dist/src/mesa/drivers/dri/sis/sis_context.h:407:2:
 error: #error platform needs WMB
nbmkdep: compile failed.

*** Failed target:  sis_clear.d
*** Failed command: CC=/u/NetBSD/arch/alpha/TOOLS/bin/alpha--netbsd-gcc 
/u/NetBSD/arch/alpha/TOOLS/bin/nbmkdep -f sis_clear.d -- 
-I/usr/xsrc/external/mit/MesaLib/dist/src/mesa/main 
-I/usr/xsrc/external/mit/MesaLib/dist/src/mesa/glapi 
-I/usr/xsrc/external/mit/MesaLib/dist/src/mesa/shader 
-I/usr/xsrc/external/mit/MesaLib/dist/src/mesa/drivers/dri/common 
-I/usr/xsrc/external/mit/MesaLib/dist/src/mesa/drivers/dri/sis/server 
-I/usr/xsrc/external/mit/MesaLib/dist/src/mesa 
-I/usr/xsrc/external/mit/MesaLib/dist/include 
-I/u/NetBSD/arch/alpha/dest/usr/X11R7/include/X11/drm 
-I/u/NetBSD/arch/alpha/dest/usr/X11R7/include/X11 -D_NETBSD_SOURCE -DPTHREADS 
-DUSE_EXTERNAL_DXTN_LIB=1 -DIN_DRI_DRIVER -DGLX_DIRECT_RENDERING 
-DGLX_INDIRECT_RENDERING -DHAVE_ALIAS -DHAVE_POSIX_MEMALIGN -DCSRG_BASED 
-DFUNCPROTO=15 -DNARROWPROTO -I/u/NetBSD/arch/alpha/dest/usr/X11R7/include 
-nostdinc -isystem /u/NetBSD/arch/alpha/dest/usr/include 
/usr/xsrc/external/mit/MesaLib/dist/src/mesa/drivers/dri/sis/sis_clear.c
*** Error code 1

Stop.

Kurt