[GNC] 64-bit Windows nightly installer & GTK dark mode support

[John Ralls]

Unfortunately not. Cygwin (and so MSYS2 packages) uses its own C runtime that’s different from MS’s msvcrt that the MingwXX packages use. Many of our other dependencies are only available in MingwXX. Linking libraries using different C runtimes doesn’t work.

Regards,
John Ralls

> On Oct 10, 2025, at 9:19 AM, Wm Tarr <wm at ilipsis.net> wrote:
> 
> cygwin has guile and libguile v 2.2 and 3.0, might they work?
> 
> On 2025-10-09 17:05, John Ralls wrote:
>> I’m working on a 64-bit Windows package. Aside from 32-bit being pretty obsolete—the last Windows-capable 32-bit computers were built 20 years ago and won’t run Windows 11—the Mingw-w64 project has deprecated it and is slowly killing off libraries that GnuCash needs.  The blocker at the moment is that I can’t get Guile (2.2 or the current 3.0) to successfully run on 64-bit. It builds the C part and then crashes out trying to compile its Scheme components. No Guile, no GnuCash.
>> 
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