Hi,

Demo version tutorial build-fail on MacBook Air, 64bit OS X lion 10.7.5, Intel HD Graphics 3000 384 MB (Note: demo version tutorial builds and runs OK on my iMac).

Tutorials fail to build both in Code Editor and I also tried opening and building in Xcode with same fatal error: Undefined symbols for architecture x86_64:
"___sincos_stret", referenced from:
_drft_init in EsenthelEngine.a(smallft.o)
_dradfg in EsenthelEngine.a(smallft.o)
_mdct_init in EsenthelEngine.a(mdct.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

I checked forum for Mac build-fail, and also for threads about this undefined symbol sincos_stret, but nothing.

http://stackoverflow.com/questions/19015...en-linking

I'd recommend upgrading your OS and Xcode to latest version,

hope this helps

Yep; that solved it, thanks. If it helps others, I made sure to first uninstall Xcode before upgrading OSX, after I had read related posts to the stackoverflow link that Esenthel sent me, to make sure the problem wouldn't bleed through upgrades. No problems after that. -a