Re: zsh-4.0.1-pre-[45] compile problems under AIX

[Jens Schleusener <Jens.Schleusener@debis-sfr.de>]

On Thu, 31 May 2001, Peter Stephenson wrote:

> Jens Schleusener wrote:
> > Hi,
> > 
> > I have problems to compile zsh-4.0.1-pre-4 and zsh-4.0.1-pre-5
> > under AIX 4.1.4 and 4.3.x.
> > 
> > I assume the problem is a local one (local gcc installation etc.) and
> > probably I have overseen something.
> 
> This could be a problem with the configure changes for termcap, so it might
> be serious.  First, however, does this happen with a completely clean
> distribution?  It's possible some of the attempts at fixing termcap/curses

Yes, I used a completely clean distribution.

> in the middle have confused configure.
> 
> Has anybody compiled successfully under AIX with zsh-4.0.1-pre-4 or
> zsh-4.0.1-pre-5?  If not, we need to fix this.
> 
> > Under AIX 4.1.4 (gcc 2.95.3) I got the following error:
> >
> > ...
> > gcc -c -I.  -DHAVE_CONFIG_H -I/usr/local/contrib/include  -o termcap.o
> > termcap.c
> > In file included from termcap.c:61:
> > /usr/include/term.h:1315: parse error before `SGTTY'
> 
> That probably means that curses.h hasn't been included.  Is
> TERM_H_NEEDS_CURSES_H defined in config.h?  If not we need to figure out

That was the point. TERM_H_NEEDS_CURSES_H was undefined. And the reason
seems to be an old curses.h file (63933 Bytes, Feb 14 1996 from a package
named "PDCurses") residing in a directory /usr/local/contrib/include (in
/usr/local/contrib the free software is installed on this machine). 
Compiling configure's "checking if term.h needs curses.h"-test-program
with the additional line

#include <curses.h>

failes with the inappropriate curses.h also. Remains the question why the
file /usr/local/contrib/include/curses.h was used instead of the standard
AIX /usr/include/curses.h? The answer may be (I am not familiar with the
configure process) that I forced (special reasons) for the configure run
the PATH to be PATH="/usr/local/contrib/bin:$PATH". Without that or with
renaming the strange /usr/local/contrib/include/curses.h zsh configures
and compiles well!

> why not.  In the generated file config.log, look for the message `checking
> if term.h needs curses.h'.  You should see some failure messages for an
> attempt to compile a programme which included term.h, but not curses.h
> (just what's happening in the failed compilation above), which triggers the
> symbol being defined.  It should be pretty difficult to get the compilation
> to succeed accidentally, though.
> 
> Looking at termcap.c, I can't see any other way of getting that particular
> error.

Greetings 

Jens

-- 
Dr. Jens Schleusener                T-Systems debis Systemhaus
phone: +49 (551) 709-2493           Solutions for Research
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mail: Jens.Schleusener@debis-sfr.de D-37073 Goettingen