[Boost-build] Features conditioned on toolset version and another feature do not work.

From: Jurko Gospodnetiæ (jurko.gospodnetic_at_[hidden])
Date: 2007-12-21 12:28:27

   Hi.

   I'm using Boost Build milestone 12 and I just discovered that 
conditional features conditioned on a toolset version and another 
feaeture do not work.

   Below are the examples tested with MSVC toolset, version 7.1. and 
using features <toolset> and <variant>. We also ran similar tests using 
MSVC 8.0 and all gave exactly the same results.

------------------
Tests that failed.
------------------

Example 1.
----------
   Compiler option applied on msvc-7.1, debug and release builds but 
should be applied only on debug builds. Does not matter whether we 
specify --toolset=msvc or --toolset=msvc-7.1 on the command line.
     <toolset>msvc-7.1,<variant>debug:<cxxflags>/buga-wuga

Example 2.
----------
   Compiler option applied on msvc-7.1, debug and release builds but 
should be applied only on release builds. Does not matter whether we 
specify --toolset=msvc or --toolset=msvc-7.1 on the command line.
     <toolset>msvc-7.1,<variant>release:<cxxflags>/buga-wuga

-------------------
Testes that passed.
-------------------

Example 3:
----------
   Compiler option not applied on msvc-7.1, debug or release build.
     <toolset>unga-bunga:<cxxflags>/buga-wuga

Example 4:
----------
   Compiler option applied on msvc-7.1, debug and release build.
     <toolset>msvc:<cxxflags>/buga-wuga

Example 5:
----------
   Compiler option applied on msvc-7.1, debug and release build.
     <toolset>msvc-7.1:<cxxflags>/buga-wuga

Example 6:
----------
   Compiler option applied on msvc-7.1, debug build but not applied on 
msvc-7.1, release build.
     <toolset>msvc,<variant>debug:<cxxflags>/buga-wuga

Example 7:
----------
   Compiler option not applied on msvc-7.1, debug build but applied on 
msvc-7.1, release build.
     <toolset>msvc,<variant>release:<cxxflags>/buga-wuga

Example 8:
----------
   Correctly recognizes <buhaha> as an unknown feature.
     <toolset>msvc-7.1,<buhaha>shreek:<cxxflags>/buga-wuga

   We really need this feature as one of our project whose build is 
implemented using Boost Build is growing and getting ported to different 
OSs/compilers. If this is a bug and not something we misunderstood, is 
there any chance of it getting fixed for the upcoming Boost 1.35 release?

   Best regards,
     Jurko Gospodnetiæ