-- Ildar Mulyukov, free SW programmer/designer ================================================ email: [EMAIL PROTECTED]
projects: http://os-development.sourceforge.net/ home: http://www.faki.mipt.ru/~ildar ================================================
This README shows how to build gcc for cygwin environment with Objective-C support. This is generally for GNUstep on top of Cygwin but may be useful for other applications. This README concerns gcc version 2.95.3 (the last official one in 2.x tree) but for 3.0.x you can do similar things. (Note: officially you don't have to use GNUstep' libobjc. I don't know really) I used original gcc sources from http://gcc.gnu.org The reason for this is that cygwin's own gcc tree dropped Obj-C support. So using this you'll probably lose MinGW support and possibly something else I don't know. If you care you should ask in cygwin mailing list. I believe it's possible to use MinGW by hacking specs but don't ask me how, sorry. So (generally) you must choose between ObjC and MinGW. So let's begin. 0. Get Cygwin (http://cygwin.com) :-) I use full fresh distro but it's surely unnecessary. 1. Get gcc sources (e.g. http://gcc.gnu.org/gcc-2.95/) Again: cygwin gcc source obtained by Cygwin setup.exe is NOT ok. You must get original gcc sources. 2. "cd gcc-2.95.3 ; ./configure --prefix=/usr && make" Hope it finished without a error. 3. Install gcc. You can do simply "make install". I use self-made script that produces package (mkpkg.sh) then install it instead of standard gcc 4. Get libobjc - GNUstep version: http://www.gnustep.org/resources/source_prereq.html or "cvs -d:pserver:[EMAIL PROTECTED]:/cvsroot/gnustep login" "cvs -d:pserver:[EMAIL PROTECTED]:/cvsroot/gnustep co gnustep/core/make" "cvs -d:pserver:[EMAIL PROTECTED]:/cvsroot/gnustep co gnustep/dev-apps/libobjc" As you see you must have gnustep-make to build libobjc. If you are going to use GNUstep in Cygwin env. you have to install it anyway. If not, you can remove it when you finished. 5. Build & install gnustep/core/make (see instructions there) 6. "cd gnustep/dev-apps/libobjc ; make" (Don't forget to run ". /usr/GNUstep/System/Makefiles/GNUstep.sh"). Replace manually libobjc.a, all headers in include/objc; put objc.dll into /bin 7. You can (optionally) add -I/usr/include/w32api into your ``specs'' file. Viola! If you are experiencing any troubles with the procedure above, email me! You can also get binaries at http://www.faki.mipt.ru/~ildar/MyFiles/ Sincerely, Ildar <[EMAIL PROTECTED]>
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