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Message-ID: <41BC7466.9010500@cwilson.fastmail.fm>
Date: Sun, 12 Dec 2004 11:40:06 -0500
From: Charles Wilson <cygwin AT cwilson DOT fastmail DOT fm>
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To: cygwin AT cygwin DOT com
Subject: Re: curses.h / termcap.h: conflicting types of tparm
References: <425828462 DOT 20041209231444 AT unexplaineds DOT org> <41BC4D2A DOT 7090702 AT familiehaase DOT de> <41BC51E1 DOT 5080301 AT familiehaase DOT de>
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Gerrit P. Haase wrote:
> 
> curses.h / termcap.h: conflicting types of tparm
> 
> This error happens when compiling the MySQL client v4.1.7 term.c
> because both headers are included.
> 
> There are two locations to report this, the cygwin main list and
> the mysql list, because it may be unusual to include both and so
> the error is in MySQL in doing so, or if it turns out to be a
> problem with termcap or ncurses the cygwin maintainer of these
> packages needs to decide where the problem is and try to push
> it upstreams or find a cygwin specific solution.

(a) it IS unusual to #include both

(b) both cygwin (the package, containing the dll) and ncurses (by 
default) provide a termcap.h file.  I assume that curses.h -- which on 
cygwin is from ncurses -- and ncurses' termcap.h would both agree. 
However, cygwin's termcap.h and ncurses' termcap.h are different. 
Besides, any rational package management system allows each file to ONLY 
be provided by one package -- or the packages must be marked as conflicting.

We can't very well have cygwin's 'ncurses' package conflict with 
cygwin's 'cygwin' package.

So, when I put together the ncurses packages, I rename ncurses' 
termcap.h to avoid conflicts. Because (see (a), above) it is unusual to 
#include both.  FWIW, "termcapn.h" lives in /usr/include/ncurses/, and 
unlike some of the other headers in that subdir, the postinstall script 
does NOT create a symlink to it from /usr/include/.

I suppose one solution would be for me to stop renaming the header file, 
and then you could add -I/usr/include/ncurses/ to your CFLAGS.  That 
way, you'd get the ncurses-derived termcap.h which would, presumably, 
not conflict with the ncurses-derived curses.h...

--
Chuck

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