make header flag

[James E Wilson]

Lucaz _ wrote:
> Hello everybody, I'm new here, and I just like to share an idea for gcc.
> I was thinking why I need to write headers "manually", this task (most 
> of times) is very mechanic.

It looks like this has been mostly answered in the thread you referred 
too.  It is easy enough to generate automatic prototypes, but C programs 
also contains variable declarations and definitions, defines, types, 
typedefs, etc.  You won't be able to compile a file to generate the 
prototypes unless you put all of this stuff in the .c file, but then 
once you have the .h file, some of this stuff needs to be moved over, 
and the compiler in general won't be able to know which stuff to put in 
the .h file.  Plus, once you have this stuff in the .h file, it needs to 
be removed from the .c file or else you will get duplicate definition 
errors, and you probably don't want your compiler to be editing your .c 
files behind your back.  There is too much risk that it could break 
something.

It is simpler to write the .h files by hand.  That is the way the 
language is intended to be used.

As for the prototypes, the -aux-info option will do that.  This was 
designed for the protoize program, and may not do execatly what you 
want.  You can probably get the result you want if you run the aux-info 
output through a sed/python/perl/whatever script.
-- 
Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com