Re: [ruby-fltk-devel] How to choose alternate C++ compiler?

[Jeremy H. <je...@ch...>]

On Fri, Apr 21, 2006 at 06:22:26AM -0500, Albert Chin wrote:

> Unfortunately, neither the Solaris C compiler will recognize .cc as
> a C++ file and call CC nor will the HP-UX C compiler.

According to a discussion on the fltk-dev list .cxx is more portable.

  The fact is that ".cxx" is the ONLY extension that can be used on
  all the platforms that FLTK supports.  ".cpp" is *not* supported by
  a large number of commercial UNIX C++ compilers, ".C" is *not*
  supported by Windows or MacOS X, and ".cc" is *not* supported by
  Windows.

I have attached a version of extconf.rb that uses conftest.cxx for the
feature tests.  Does it work for you?

> That's why we need a way to explicitly set the C++ compiler

I'm studying how to do that, unfortunately it depends on the details
of rbconfig.rb and mkmf.rb which are very messy (that's why I'm
*really* hoping the attached version of extconf.rb will fix things and
save me the trouble).  I have also asked for help on comp.lang.ruby .  

If the attached extconf.rb doesn't work, can you send me your system's
versions of rbconfig.rb and mkmf.rb , plus the Makefile and mkmf.rb
created by "ruby extconf.rb"?  Also, can you confirm that running
"fltk-config --cxx" on the command line prints the name of the correct
C++ compiler?  If it does then extconf.rb will be able to determine
the right compiler automatically and I won't need to add a build flag.

Sorry to bother you for these details but this is messy OS-dependent
stuff and I don't (yet) have a quick fix.

Regards, 

Jeremy Henty