Posts Tagged ‘ios

01
Nov
11

How To: Compile and Use Tesseract (3.01) on iOS (SDK 5)

Update

  • I don’t have access to a Mac computer now (actually it has been 3 months) and I couldn’t update the guide to Xcode 4.5 (iOS 6), but the fine gentleman bengl3rt has done so and the updated script is available at: http://goo.gl/wQea5 (I haven’t been able to test it, so some feedback on whether it works or not would be appreciated!)

I never thought that my last post would have so much audience. Among other things, it earned me 3 direct job interview offers (1 of  ’em from Google itself, maintainer of tesseract), an invite to write articles to a TI digital e-magazine and a few digital friends, but that’s something to discuss at other posts. Thank you!

Getting back to what really matters: last post was focused on cross compiling (potentially) any library for iOS (armv6/armv7/i386) and to use as an example I chose Tesseract, which was the library I was using on a work project. But the repercussion was so great and both Tesseract and iOS got newer versions that I’ve decided to write this post specifically about getting Tesseract compiled and using it on your iOS project.

As stated earlier, Tesseract has been officially launched at version 3.01 (that now uses an autogen.sh setup script and an improved configure script ) and iOS has received a major upgrade, version 5.0. As you may guess, these changes broke my script!

Continue reading ‘How To: Compile and Use Tesseract (3.01) on iOS (SDK 5)’

Advertisements
17
Feb
11

How To: Cross compiling libraries for iOS (armv6/armv7/i386)

Update

So, if you’re a smart programmer, when you get asked to solve some new problem (“new” in the “I’ve never done this before” sense) you head over to Chrome (not Opera/Firefox, as I stated earlier, you’re SMART, not FASHION or OUTDATED), hit “CTRL + L” and start typing some keywords related to your problem, hit ENTER and wait for the amazing amount of resources Google (not Bing, because, as I stated earlier, you’re a programmer, not a no-brains) will hand you.

Among those resources, if you’re lucky enough, you’ll find out an OpenSource library that claims to solve exactly, or at least a piece of, your problem. This Library has binary downloadable packages for almost every OS you can imagine and even for OpenSolaris BUT, if you’re a mobile App developer (Android/iOS), they won’t give a fck!ng d@mn $h!t binary for your target OS.

Well, at this point, if you’re in a good day and helped that old lady cross the street a couple of hours earlier, this Library will be ready to compile through one configure script named, ehrm… “configure”.

If you’ve made it through here, maybe I can save your day. I’ve prepared one Bash script that is able to cross-compile one (or more) Static Library in different architectures (armv6/armv7/i386) and pack all different lib*.a into one single FAT FILE (or Universal Binary) so you can link against the same file when compiling for iPhone3G/3GS/4/Simulator.

Continue reading ‘How To: Cross compiling libraries for iOS (armv6/armv7/i386)’