Re: [Boost-build] [Locale] Help Needed with Boost-Build

Subject: Re: [Boost-build] [Locale] Help Needed with Boost-Build
From: Artyom (artyomtnk_at_[hidden])
Date: 2010-09-12 04:31:14

> > Input  Options:
> > 
> > - with icu - turned on by default.
> > - with  iconv (turned off by default in Windows and Solaris)
> > - with  posix-backend (turned on by default on Linux and Mac)
> > - with  winapi-backend (turned on on windows and cygwin)
> > - with std-backend  (turned off by default with SunStudio/stlport)
> 
> How those options are  supposed to be specified?
> Only by user, in any
> combination he might want?

Yes, any option in any combination.

User should be able to specify them to reduce
backends or dependencies he does not need or even
add backends even if they may fail some tests.

Also if ICU is not found, for example, the ICU option should
be turned off automatically.

> Also, by "on XXX and YYY" -- I suppose you
> mean target-os, not  host-os?
> 

Yes, right, target OS

> > Pre-Build Checks:
> > 
> > - if with icu is on, but  no icu found, turn it on
> 
> Did you mean "off" as the last  word?

Yes, you are right, oops.

> 
> >   Note, when building under MSVC/Debug; search for  icuXXXd library 
> >   rather then for icuXXX library.
> > - if  with iconv is on
> >   if iconv is a part of standard C library, use  it
> >   Otherwise find libiconv, if not found, turn iconv  off.
> 
> Would you please either specify code that compiles and links  with
> iconv and does not compile or does not link without?  Alternatively,
> point me at existing checks? CMake does not appear to have  such
> check in 2.6.

I have written my own in CMake with check_cxx_compiles:

  #include <iconv.h>
  int main() 
  { 
    iconv_t v=iconv_open((char *)0,(char *)0);
  }

And if not compiles, search for iconv and iconv.h

> 
> > - if not on Windows and both iconv and icu are  off rise
> >   a error, no - charset conversion tool is given
> > -  if building under SunStudion make sure it uses -library=stlport4
> >    flag
> > - Ensure threading on
> 
> I'm fairly sure you can do this last  one yourself easily, no?

I guess :-)

> > Build Defines:
> > 
> > -  Add BOOST_ALL_NO_LIB
> 
> Why? That would make Boost.Locale different from  every other compiled
> library.

Very simply, latest Boost.Thread allows to use boost::mutex without
linking to the library itself. However if I do include <boost/thread.hpp>
under MSVC it would enforce it to link with library.

So I just want to reduce the dependency I don't need.

> 
> > - if icu is enabled:
> >      Define BOOST_LOCALE_WITH_ICU
> > - if iconv enabled and found 
> >     Define BOOST_LOCALE_WITH_ICONV
> >    else
> >     Define BOOST_LOCALE_NO_ICONV
> > - if posix  backend is NOT enabled
> >     Define  BOOST_LOCALE_NO_POSIX_BACKEND
> > - if std backend is not  enabled
> >     Define BOOST_LOCALE_NO_STD_BACKEND
> > - if  winapi backend is not enabled
> >     Define  BOOST_LOCALE_NO_WINAPI_BACKEND
> 
> You have not said anything about either  posix, or std, or winapi backend, 
> or how they are enabled.

I've mentioned there:

> > - with icu - turned on by default.
> > - with  iconv (turned off by default in Windows and Solaris)
> > - with  posix-backend (turned on by default on Linux and Mac)
> > - with  winapi-backend (turned on on windows and cygwin)
> > - with std-backend  (turned off by default with SunStudio/stlport)

Generally defaults are:

ICU is on unless ICU library not found
POSIX is on on Mac OS X and Linux,
WINAPI is on any windows platform including Cygwin.
STD enabled anywhere unless it is SunCC with STLPort (which is broken)
ICONV turned on by default on POSIX platforms, not including Solaris.

> > 
> > If using boost<= 1.43 link with thread  library
> 
> Why does this depend on Boost version?

Not really important, as I told above, newer versions have header only
Boost.Thread's mutex, older require link.

> I can look into this, but before -- can you give me a  link to "golden" 
sources
> of Boost.Locale, or better still -- to live version  control system where it
> lives. Write access would be slightly  better.

Sorry (I send the link only to Boost and not Boost-Build):

Sources: http://sourceforge.net/projects/cppcms/files/boost_locale/
SVN: 
https://cppcms.svn.sourceforge.net/svnroot/cppcms/boost_locale/branches/rework

Please give me your sourceforge account and I'll add commit permissions
immediately to the project.

Thank you very-very-very much!

Artyom