Aside from what everyone posted, see also this old post of mine in case you want to get everything to work with stock Debian packages: http://blog.vucica.net/2010/12/getting-objective-c-2-0-to-work-on-debians-gnustep-with-clang.html
I last tried this... back in December 2010, obviously. It would be a really good idea, however, to build as much stuff from source if you want to do GNUstep development. On Sat, Feb 25, 2012 at 18:42, Jens Alfke <[email protected]> wrote: > I’m trying to get started with GNUstep development but running into > problems getting the LLVM compiler and libobjc2 set up correctly. > > My story: I’ve got some Foundation-level Cocoa code (i.e. no UI) that runs > on OS X 10.7 and iOS 5, and I’d like to get it running in GNUstep on Linux. > Syntactically, this code uses properties and blocks pretty heavily (but not > GCD). > > So I’ve installed Ubuntu 11.10 x86 inside VirtualBox on my MacBook Pro, > and installed the following packages via apt-get: > * gnustep > * gnustep-devel > * llvm > * clang > * libobjc2 > > I can build & run a trivial app that calls NSLog (the example from the > makefile tutorial.) And I’ve set up a makefile for my code, but when I try > to build it I run into compiler problems. > > If I just run “make”, GCC [4.6.1] barfs on the first use of the “^” > character. So apparently it doesn’t have the Apple block extensions: > > Source/Header.h:19:11: error: expected identifier or ‘(’ before ‘^’ token > > OK, according to instructions on the gnustep site, I can enter “make > CC=clang LD=gcc” to build with Clang. But when I do this, Clang [2.9] can’t > find objc.h: > > > /usr/include/GNUstep/GNUstepBase/preface.h:112:11: fatal error: > 'objc/objc.h' file not found > > #include <objc/objc.h> > > The only copy of objc.h on my system is > /usr/lib/gcc/i686-linux-gnu/4.6/include/objc/objc.h. > So apparently I either need to > (a) configure Clang to search that directory (which I’m reluctant to do > because it may have GCC-specific stuff in it), or > (b) copy the objc/ header directory into Clang’s header search path > (where?), or > (c) reconfigure libobjc2 to understand that I have Clang installed and put > its headers in the right place > > I’m not sure which of these is appropriate. Actually I’m confused because > it sounds from what I’ve read (i.e. the libobjc2 1.6 announcement) as > though libobjc2 has Clang/LLVM specific functionality, so I expected that > the two would play nicely together if I installed both, without need for > further customization. But I’m fairly clueless about Linux and apt-get so I > may just have done something wrong… > > Thanks! > > —Jens > > > _______________________________________________ > Discuss-gnustep mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnustep > -- Ivan Vučica - [email protected]
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