Re: [AD] Problem compiling Allegro with ACE networking library.

[aj <aj@xxxxxxxxxx>]

Kirk Black wrote:
> I'm building a multi-platform Allegro application that uses the ACE 
> networking library.  Everything works on Mac and Linux builds, 
> however, Allegro and ACE libraries don't play nice together and won't 
> compile properly on Windows.  As a workaround, I build the Windows 
> application using winsock but it would be nice if I didn't have this 
> exception.  I'm sending a similar bug report to the ACE developers and 
> see if one or both parties can help figure out the problem.
>
> The general problem is one of an order of include files.  If you 
> compile the code below as-is, you will get a bunch of errors 
> complaining about macro and struct redefinitions such as the following 
> (I've only included a sampling. There are a total of 71 of these errors):
> c:\Program Files\Microsoft Visual Studio .NET 
> 2003\Vc7\PlatformSDK\Include\WinSock2.h(467): warning C4005: 
> 'SO_DONTLINGER' : macro redefinition
> c:\Program Files\Microsoft Visual Studio .NET 
> 2003\Vc7\PlatformSDK\Include\WinSock2.h(558): error C2011: 'sockaddr' 
> : 'struct' type redefinition
> c:\ACE\ACE_wrappers\ace\OS_main.h(176): warning C4005: 'main' : macro 
> redefinition



looks like ACE is including WinSock2.h  twice... for each instance of 
#include "WinSock2.h"  place an inclusion guard around it.
like this:

#ifndef _WINSOCK2API_
#include "WinSock2.h"
#endif







> If you move the ace/Log_Msg.h header file to be compiled first, you 
> get a single error:
> c:\Program Files\Microsoft Visual Studio .NET 
> 2003\Vc7\include\allegro\system.h(31): fatal error C1001: INTERNAL 
> COMPILER ERROR
>        (compiler file 'msc1.cpp', line 2701)
>         Please choose the Technical Support command on the Visual C++
>         Help menu, or open the Technical Support help file for more 
> information
>
> If you try to put the allegro.h header first, then the ace/Log_msg.h 
> and then the winalleg.h (or alternatively don't even include the 
> winalleg.h header) you get the following errors with this program:
>
> c:\Program Files\Microsoft Visual Studio .NET 
> 2003\Vc7\PlatformSDK\Include\WinGDI.h(541): error C2371: 'BITMAP' : 
> redefinition; different basic types
> c:\Program Files\Microsoft Visual Studio .NET 
> 2003\Vc7\PlatformSDK\Include\WinGDI.h(3587): error C2229: struct 
> 'tagDIBSECTION' has an illegal zero-sized array
> c:\ACE\ACE_wrappers\ace\OS_main.h(176): warning C4005: 'main' : macro 
> redefinition
> c:\Documents and Settings\Kirk\My Documents\Visual Studio 
> Projects\AllegroAceTest\main.cpp(14): error C2065: '_mangled_main' : 
> undeclared identifier
>
>
> I've created a simple program to illustrate the problem.
>
> #include <allegro.h>
> #include <winalleg.h>
> #include "ace/Log_Msg.h"
> int main(int argc, char* argv[])
> {
>    allegro_message("Allegro Message: Testing ACE and Allegro library 
> integration" );
>    ACE_DEBUG((LM_DEBUG, "ACE_DEBUG: Testing ACE and Allegro Library 
> integration\n" ));
> }
> END_OF_MAIN();
>
> In order to attempt to build this simple application and see the 
> errors reported, you first need to build the ACE networking library on 
> a Windows machine.  I currently am building this application and 
> getting the errors with MSVC7 compiler.
>
> 1. Download ACE. http://deuce.doc.wustl.edu/ACE.zip.
>
> 2. Follow the build instructions for building ACE on Windows with 
> MSVC++ 
> http://www.cs.wustl.edu/~schmidt/ACE_wrappers/ACE-INSTALL.html#msvc
>
> 3. Create a simple MSVC7 project with one file and copy/paste the code 
> in this post.
>
> 4. Set the project properties to be able to find the ACE include file 
> and use the ACE dll for linking.
>
> Thanks in advance!
> Kirk Black
>
>
>
>
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