howto compile gnat included in gcc-3.1?

[Marc Espie]

On Mon, Jun 10, 2002 at 03:36:32PM +0200, Nils Radtke wrote:
> # and where, oh, where is the fragment of the configure log that deals with 
> # ada ? Look at it (I assume you've been running your compile under script(1)
> # or some equivalent. If not, try again, you just lost some newbie points.)
> Oh, oh, and where am I supposed to find this couple of bits called
> config.log? Its somewhat not the first time I have to fix a struggled
> source and config.log has always been a verbose friend. But neither in
> gcc-3.1 nor gcc-build there _is_ any config.log!

Funny, I can find quite a few config logs under the build directory.

Hint: try find . -name config.log -print, you'll be enlightened.

Like, gcc-build/gcc/config.log. Hard to find, heh ?

Well, I'll admit that the mix of cygnus configure and gnu autoconf can
be confusing at times, but come on ! Is it really the first time you've
built something with recursive configure invocations ?

> # At a guess, it will say it did not find an ada compiler, or gnatbind...
> # This is where you must look...
> I would really really _like_ to look at this lovely file..
> Can you tell me where I am to find this file?

Read carefully what I wrote... did you see script(1) ?  If you don't know
the script command, learn ! It's the most useful command one can use to 
create complete bug reports.

First you run script.
Then you run configure.
Then you exit the shell.
Then you look at typescript.

> About the perhaps not found ada compiler: the bin dir which holds the
> gcc (ada-comp.) and gnatmake and friends _is_ in PATH. First thing.
> Second: ADAC tells configure where to find and configure stats in
> config.cache:

> # grep -E "gnat|ada" config.cache
> ac_cv_prog_adac_no_long_long=${ac_cv_prog_adac_no_long_long=yes}
> gcc_cv_prog_adac=${gcc_cv_prog_adac=/usr/local/gnat/bin/gcc}
> #

> There _is_ an ada enabled gcc.

Okay, so look for gnatbind as well. It's likely it's not in your path, and
that's what killing the compilation.