Re: [cpp-netlib-devel] Compile-time Reduction Effort

[Nelson, E. - 2 <eri...@ba...>]

> Dean Michael Berris wrote on Monday, October 25, 2010
> ... I've made some steps to start
> reducing the compile-times of release 0.8. One of the first casualties
> in the compile-time reduction effort is the Boost.Concept_check stuff
> on the fundamental accessors/wrappers.
> 

Just to throw it out there, maybe some of this could be controlled with
a BOOST_CPP_NETLIB_COMPILE_FAST macro, enabling it to be optional.

> Now there are still a lot of other things I can do to start reducing
> compile-times. One is incorporating precompiled headers into the
> build, and start pre-compiling almost every single header in the
> library.

Pre-compiled headers seem like they are going to be a mess, and
conceptually similar to going to a non-header-only implementation.  I
like the idea of header-only, but maybe a more library-based one would
help the compile time.

> Has anyone played around with CMake and how to make precompiled
> headers part of the build process? I have seen some Google results on
> the matter but I currently have no time/patience to muck around with
> that.
> 

Nothing else in Boost requires CMake, as far as I know.  Boost-devel has
had some rumblings about a change, but right now Boost.Build is the
Boost standard.

> I'm nearing the completion of the asynchronous server that invokes
> request handlers in a thread pool and although the compile times have
> been reduced in the HTTP client side of things I would really
> appreciate some CMake kung-fu from people on the list to incorporate
> precompiled-headers (so that we can make that part of the install step
> in 0.8).
> 

Compile time *is* an important issue, but the beauty of a header library
is that there is no install step- you just copy the files into your
directory tree.

Erik

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