Re: [Mingw-users] Building pwlib/ptlib on Windows XP - Problem with Configure script?

[David <dav...@ar...>]

Greg Chicares schrieb:
> On 2009-05-01 06:28Z, David wrote:
>   
>> I want to build PWLib - package ptlib-2.4.1.tar.gz - and libOPAL on 
>> Windows XP to study and understand how Videoconferencing and VoIP 
>> applications are functioning.
>>
>> As I could not find a terminal in MSYS, I used the Cygwin xterm and did 
>> the following things:
>>     
>
> Does this package's 'configure' script require a terminal?
>   

No, it only requires an UNIX shell, because the Windows command prompt 
does not understand the commands.

When calling - from the dosprompt - \MSYS\bin\bash --login -i ,

the shell does not correctly start, it seems to terminate immediately. I 
will try with File - Run from the start menu.
>   
>> I assumed I need to download and install the Microsoft DirectX SDK, and 
>> I did that.
>>
>> Then in the cygwin xterm I did the following thing:
>>
>> export PATH=/cygdrive/c/MinGW/bin:$PATH
>>     
>
> The risk here is that $PATH will include Cygwin libraries
> along with MinGW tools: e.g., you might be mixing incompatible
> C runtime libraries.
>
>   
>> The call  to the configure script:
>>
>> ./configure --host=mingw32 
>> --with-directx-includedir=/cygdrive/c/Programme/Microsoft\ DirectX\ SDK\ 
>> \(March\ 2009\)/Include
>>     
>
> Pathnames with spaces create another risk: they don't always
> work well with *nixy tools.
>
>   
>> Among the messages were:
>>
>> checking for DirectX includes in /cygdrive/c/Programme/Microsoft DirectX 
>> SDK (March 2009)/Include...
>> checking mingw_dshow_port.h usability... no
>> checking mingw_dshow_port.h presence... no
>> checking for mingw_dshow_port.h... no
>>     
>
> That file's name seems to suggest that it might be needed for a
> MinGW build. Just a guess, though.
>
>   
>> checking dsound.h usability... no
>> checking dsound.h presence... no
>>
>> File dsound.h IS there, in the DirectX include dir. Why isn't it found?
>>     
>
> Is it found if you eliminate spaces from the pathname?
>   
No,
>   
>> What else must I do?
>>     
>
> Probably I'd first search for others' successes building these
> libraries with MinGW or Cygwin--and, if any are found, then try
> to reproduce them. Otherwise, I'd try building them with Cygwin
> tools alone; if that works, then it might guide an effort to
> build with MinGW.
I found the following: http://www.voxgratia.org/docs/pwlib_windows.html

It seems to say that never a Windows build has been made, except with 
commercial software such as MS VisualC++ 2005 - maybe I will buy it next 
month???

Why is dsound.h not found but dxerr9.h found?

With cygwin, that is *not* giving --host=mingw32 in the configure call, 
it does not even look for DirectShow,
but for OSS, ALSA, and V4L2 which of course are not there.

David