I am trying to compile as a universal binary a framework that links
with a UNIX .a library. The framework in question is EPEGWrapper,
distributed by Marc Liyanage. More info here:
The download package includes libjpeg.a, compiled for PowerPC, with
its associated headers. The Xcode project for the framework links
with this library. I can't compile as a universal binary because
there's no i386 version of the library.
Fortunately, libjpeg is open source. I can download the source
(http://freeware.sgi.com/source/libjpeg/), configure/make on the
command line, and build a PowerPC version of libjpeg.a.
First of all, is it even possible to compile a UNIX .a library as a
universal binary? If so, what kind of modifications to the makefile
and other command-line tricks would I need to perform? I've read that
gcc on the command line can't be made to link against SDKs.
Would it be possible to compile libjpeg.a on an Intel computer
(Developer Transition Kit or Linux PC?) and then incorporate both a
PowerPC and an Intel version of the library into the project for the
framework? Perhaps I could build with two targets and then join them
on the command line?
I should mention that my application builds with gcc 4.0 and targets
10.3.9 on PowerPC and 10.4 on Intel. I have a PowerBook (PowerPC!)
running 10.4.2 and Xcode 2.2.
Thanks all.
Andrew
KavaSoft
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