[PATCH] Update FAQ listing required packages for building Cygwin

Corinna Vinschen corinna-cygwin@cygwin.com
Wed Jun 29 08:04:00 GMT 2016

Hi Jon,

On Jun 28 15:21, Corinna Vinschen wrote:
> On Jun 28 13:39, Jon Turney wrote:
> > docbook2X is now required for building documentation
> > libiconv differences between x86_64 and x86 no longer exist
> Please apply.

Sorry, but that was not quite correct.  Apparently I only skimmed the
log text, not the actual patch.  Doh.

When building 32 bit Cygwin, you need the 64 bit Mingw compiler for
cyglsa64.dll.  The reason is that 32 bit cyglsa.dll won't work on 64 bit
systems, even if Cygwin itself is running under WOW64.  Since we don't
know if the user runs Cygwin on 32 bit or under WOW64, we have to create
*both* cyglsa DLLs for 32 bit Cygwin, while it's obviously sufficient to
build only the 64 bit version for 64 bit Cygwin.

Care to fix this part of your patch?


Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat
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