[xmlsec] Minor bug in windows build environment

[Zlatkovic, Igor]

> Igor,
> 
> compiling xmlsec1.0.3 on Windows, not using Xslt
> will cause a compile error because the flag /DXMLSEC_NO_XSLT=1
> is not correctly set.
> 
> This flag is added to the global CFLAGS variable before 
> common settings 
> are done.
> Adding common settings to CFLAGS will overwrite the no xslt 
> definition.
> 
> See:
> CFLAGS = /nologo /D "WIN32" /D "_WINDOWS" /D "_MBCS" /D 
> "_REENTRANT" /W3 
> $(XMLSEC_CRYPTO_CFLAGS)
> 
> Fixing this is quite simple (CFLAGS = $(CFLAGS) /nologo ...... ).
> Just wanted to mention it.
> 
> Cheers
> 
>     Matthias

Thanks.  I'll fix it.

Ciao,
Igor