Re: [pdf-devel] Compiling for windows

[Aleksander Morgado]

>    I started the development of FS#15 (Windows host encoding support),
>    and found a small problem in the pdf-stm-file.c file: S_IRGRP and
>    S_IROTH are not defined in windows (no way to deal with permissions
>    for group or others).
>
> Well, it seems we have reached the point where we should introduce
> conditional compilation depending on the plattform.
>
> To use generic code able to compile in all plattform may be a solution
> for this specific issue, but we will surely find situations where we
> will need to use code A for one plattform and code B for another
> plattform. 

The host encoding conversion in the Text Module, for example. `iconv' is 
used for all POSIX, except for Windows, where its own API is used.

> We need some kind of preprocessor definitions determining the host
> plattform.

At least for the text module, I was using these lines to check if the 
host OS was WIN32 (in a similar way as done within the modules imported 
from gnulib):

#if defined _WIN32 || defined __WIN32__
 #define WIN32_NATIVE
#endif


And an example of use:

#ifdef WIN32_NATIVE
 #include <windows.h>
#else
 #include <iconv.h>
 #include <errno.h>
 #include <string.h>
#endif

>    After correcting this bug everything compiles correctly with mingw32
>    cross-compiling.
>
> Please dont commit this patch. Lets solve the problem in a general way
> instead.

IMHO this change should not depend on the platform itself, but in the 
availability of the flags, which is the thing being checked.