[Boost-build] PCH on OSX fails

From: Hugo Duncan (hugoduncan_at_[hidden])
Date: 2008-03-07 10:01:01

Hi,

The example at the start of pch.jam produces the following output with
current trunk on OS X 10.5.2.  Any ideas on how to fix this? or, being new
to macs, am I using the wrong toolset (I have "using darwin ;" in my
user-config.jam)?

Thanks,
Hugo

Error: ambiguity found when searching for best transformation
Trying to produce type 'CPP_PCH' from:
   -  { mypch.hpp.HPP }
Generators that succeeded:
   -  pch.default-cpp-pch-generator
   -  darwin.compile.c++.pch
First generator produced:
Second generator produced:
   -  { darwin%darwin.compile.c++.pch-mypch.hpp.pch.CPP_PCH { mypch.hpp.HPP
} }