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Date:	Wed, 12 Jun 2013 23:51:25 +0100 (GMT Daylight Time)
From:	Arthur Norman <acn1 AT cam DOT ac DOT uk>
To:	cygwin AT cygwin DOT com
Subject:	Re: [64bit] Xlib.h not available in cross-compile-to-self usage
In-Reply-To:	<alpine.WNT.2.00.1306120819310.1460@panamint>
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Thanks. I am building the code from reduce-algebra.sourceforge.net and in 
particular updating the build system there so that anybody who fetches 
will be able to build. The part that I am mostly concerned with uses 
either the FOX toolkit for its GUI stuff or wxWidgets (each built from 
source) so in the native cygwin case that is just a bunch of X11 stuff 
with Xft, Xrandr, fontconfig and the like. At present I can build a 32-bit 
set of binaries if I am using a 32-bit cygwin shell and compile using just 
"gcc" (rather than trying i686-pc-cygwin-gcc which exists but its sys-root 
is less populated) and I can build a 64-bit one if I use a 64-bit cygwin 
shell. But eventually it would feel tidy to be able to build i686-cygwin, 
x86_64-cygwin, i686-mingw32 and x86_64-mingw binaries all using just one 
host machine - and at present I can do that if I do not try to build the 
GUI versions.

So I can in fact build all I want at present - but I have to build some 
versions from a 32-bit cygwin shell and some from a 64-bit one, and the 
facility that arises using "--host=i686-pc-cygwin" on a 32-bit cygwin 
platform exists enough to feel tempting (to leave me a set of build 
scripts consistent wherever I run them) but is unexpectedly deficient 
compared to omitting the "--host" - and ditto in the 64-bit world.

So my note here is more a note of incompleteness and a hope that 
eventually eveything that can be built by plain "gcc" on regugar 32-bit 
cygwin will be buildable using either i686-pc-cygwin-gcc or 
x86_64-pc-cygwin-gcc - with X11, Xft, Xranrd, fontconfig being the 
components I am most waiting for but not feeling a need to make my request 
an urgent one!
                   Arthur






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