[GRASS-dev] New OSX configure option for architectures (ie universal)

[William Kyngesburye]

Well, I dug into autoconfig docs and figured out configure options to  
set architectures and SDK for OSX.

--with-macosx-archs="i386 ppc x86_64 ppc64"

just include a list of architectures you want (above is quad-arch).

It also checks GUI toolkits (tcltk, wxpython) for available  
architectures, and substitutes them in makefiles as needed, so you can  
build a 64bit arch for GRASS, when you only have a 32bit wxpython  
(just make sure to specify both 32 and 64bit archs in configure, so  
32bit GUI stuff can link to GRASS libraries).

--with-macosx-sdk=/Developer/SDKs/MacOSX10.4u.sdk

Necessary when compiling on a PPC Mac with OSX 10.4, or when compiling  
on a later system for an earlier system (like I do for by binary  
distributions).


No more need to add arch flags and isysroot to CFLAGS & friends ^_^

Try it out.  I tested on Snow Leopard (Xcode 3.2).  I don't think I  
broke configure for other platforms.

-----
William Kyngesburye <kyngchaos*at*kyngchaos*dot*com>
http://www.kyngchaos.com/

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