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Re: [Texmacs-dev] Qt TeXmacs-, Qt-4.6.3 compilation error

From: Andrey G. Grozin
Subject: Re: [Texmacs-dev] Qt TeXmacs-, Qt-4.6.3 compilation error
Date: Mon, 8 Nov 2010 12:14:54 +0600 (NOVT)
User-agent: Alpine 1.10 (LRH 962 2008-03-14)

On Fri, 5 Nov 2010, Miguel de Benito Delgado wrote:
  I read at qtcentre (http://www.qtcentre.org/archive/index.php/t-7223.html) 
that this problem was due
to duplicate symbol definitions in the preprocessor and then it was related to 
the order of inclusion
of header files.
Thanks! After reading this, I wrote the following patch which fixes the compilation problem in Linux.

diff -r -U1 TeXmacs- 
--- TeXmacs-   2010-10-23 
02:38:02.000000000 +0700
+++ TeXmacs-        2010-11-08 
19:43:16.000000000 +0600
@@ -25,2 +25,5 @@
+#ifdef CursorShape
+#undef CursorShape
 #include "Qt/qt_utilities.hpp"

It seems that the problem is well-known; there is a "standard" solution, namely, /usr/include/fixx11.h (so, instead of these 3 lines, one might just insert 1: #include <fixx11.h>). But this file belongs to kdelibs, and not every Linux user has it installed. So, my patch is more limited but more portable (and it solves the immediate problem).

Hmm. It seems that during the last year nobody has ever compiled TeXmacs with --enable-qt on any kind of Linux. Otherwise, this problem would be encountered by somebody:

#define CursorShape 0

enum CursorShape { ... }

which, of course, becomes

enum 0 { ... }

Not a very encouraging thought...


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