[Qt-interest] Compiling from source

[Israel Brewster]

On Dec 6, 2009, at 7:14 AM, Robert Hairgrove wrote:

> Peter M. Groen wrote:
>> Hi All,
>>
>> I tried compiling Qt 4.6 from sources ( MaxOSX 10.6 Snow Leopard )  
>> but
>> it always breaks on the WebCore.
>>
>> The only success I had on compiling was with the WebCore option
>> disabled. What could be the problem here? What am I missing?
>>
>
> Hello, I just ran into the same problem when compiling Qt 4.6.0 on Mac
> OSX 10.5.8 with a configuration which included MySQL support and  
> WebKit.
> I got the exact error messages which you did, and I can confirm that  
> it
> is indeed a conflicting header file.
>
> The default Mac installation puts all of the MySQL libraries into
> /usr/local/mysql-5.*-osx10.*-x86 and then advises to create an alias
> "mysql" to that directory. Still, the Qt configure program cannot find
> the MySQL include nor the lib directory by itself. However, including
> the include directory as an -I switch will cause this directory to be
> searched before all others, thus causing the conflict.
>
> It seems that the header "plugin.h" is probably the culprit, although
> I'm not 100% sure about it.

It is. I got things building on my machine by simply moving this file  
out of the MySQL include directory. Granted, that might break  
something in MySQL itself, but since I am only using it for building  
Qt, I don't care about that.

> What I did to solve the problem was to add a
> single symbolic link (alias) to the single header file "mysql.h" in  
> the
> /usr/local/include directory and only added an -L switch to the
> configure program so that the linker can find the MySQL libs. Then I
> invoked "make" again (repeatedly) and watched which additional headers
> were claimed as missing. There are about 5 or 6 of these, namely:
>
> mysql.h
> my_alloc.h
> my_list.h
> mysql_com.h
> mysql_time.h
> mysql_version.h
> typelib.h
>
> OK, there are 7 of them total. ... Anyway, once you have these in  
> place,
> and have added the -L switch to the configuration, everything should
> compile and build correctly. But don't make a symlink to the entire
> directory because you will get the conflict with at least one of the
> other header files in that directory; you have to make links to the
> individual files.
>
> Please note that I haven't actually had time to USE anything of the  
> new
> Qt installation yet, so "caveat emptor" applies!
>
> HTH
> _______________________________________________
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> http://lists.trolltech.com/mailman/listinfo/qt-interest

-----------------------------------------------
Israel Brewster
Computer Support Technician II
Frontier Flying Service Inc.
5245 Airport Industrial Rd
Fairbanks, AK 99709
(907) 450-7250 x293
-----------------------------------------------

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