[Boost-build] mingw cannot exec 'as'

Subject: [Boost-build] mingw cannot exec 'as'
From: daniel zzz (hawkxz_at_[hidden])
Date: 2010-01-23 21:22:40

Hi. I'm trying to compile boost on windows with mingw, but it errors
on everything:

    "C:/Mingw/bin/g++.exe"  -ftemplate-depth-128 -O0 -fno-inline -Wall -g -mthre
ads -Winvalid-pch -DBOOST_ALL_NO_LIB=1 -DBOOST_BUILD_PCH_ENABLED -DBOOST_MATH_TR
1_DYN_LINK=1 -I"bin.v2\libs\math\build\gcc-mingw-3.4.4\debug\threading-multi\..\
src\tr1" -I"." -I"libs\math\src\tr1" -c -o "bin.v2\libs\math\build\gcc-mingw-3.4
.4\debug\threading-multi\assoc_laguerref.o" "libs\math\build\..\src\tr1\assoc_la
guerref.cpp"

...failed gcc.compile.c++ bin.v2\libs\math\build\gcc-mingw-3.4.4\debug\threading
-multi\assoc_laguerref.o...
gcc.compile.c++ bin.v2\libs\math\build\gcc-mingw-3.4.4\debug\threading-multi\ass
oc_legendref.o
g++.exe: installation problem, cannot exec `as': No such file or directory

It seems to find g++.exe just fine, but it can't find as.exe which is
obviously in the same folder. I suppose this is a problem with using
windows.
Any way to fix it?