Hello. You are using /usr/local/bin/gcc, which isn’t the standard gcc on OSX. There is something wrong with that gcc, you get this all over: gcc: warning: couldn't understand kern.osversion ’14.0.0 But your gcc has no Objective-C installed: configure:10246: gcc -std=gnu99 -c -g3 -O2 -x objective-c -x objective-c conftest.c >&5 gcc: warning: couldn't understand kern.osversion '14.0.0 gcc: error: language objective-c not recognized So there are multiple problems with your system. Closing this bug. Jan D. > 25 nov 2014 kl. 19:32 skrev Yen Chieh Chern : > > Hi Jan, > > Thanks. I have attached the compressed config.log below. Please let me know if you spot something wrong there. > > CYC > > On Tue, Nov 25, 2014 at 12:24 AM, Jan D. > wrote: > Check out config.log. Compress it and send it here if you don’tsee any error in there. > > Jan D. > >> 24 nov 2014 kl. 21:20 skrev Yen Chieh Chern >: >> >> Hi Jan, >> >> I have already installed command line tools when run the previous compilation. >> >> I also tried compiling with flags '--with-ns --without-x', however it doesn't work, >> >> checking for X... disabled >> checking AppKit/AppKit.h usability... no >> checking AppKit/AppKit.h presence... no >> checking for AppKit/AppKit.h... no >> configure: error: `--with-ns' was specified, but the include >> files are missing or cannot be compiled. >> >> Any further ideas? >> >> Thanks, >> CYC >> >> On Mon, Nov 24, 2014 at 1:09 PM, Jan D. > wrote: >> Do: >> >> xcode-select —install >> >> and run configure with —with-ns —without-x >> >> Jan D. >> >>> 24 nov 2014 kl. 09:54 skrev Yen Chieh Chern >: >>> >>> Hello there, >>> >>> I have the latest Xcode 6.1 installed and Mac OS X 10.10.1. When I compiled from source (git clone -b emacs-24 git://git.savannah.gnu.org/emacs.git ) with flag --with-ns, I got the following error, >>> >>> ... >>> >>> checking for X... libraries /usr/X11/lib, headers /usr/X11/include >>> checking AppKit/AppKit.h usability... no >>> checking AppKit/AppKit.h presence... no >>> checking for AppKit/AppKit.h... no >>> configure: error: `--with-ns' was specified, but the include files are missing or cannot be compiled. >>> >>> I can confirm that AppKit.h exists under >>> >>> /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk/System/Library/Frameworks/AppKit.framework/Versions/C/Headers/AppKit.h >>> >>> I also tried the following as mentioned in bug#18779 but it won't help. >>> >>> ln -s /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk/usr/include /usr/include >>> >>> I am not sure if it is due to 10.10.1 upgrade, please let me know if there is a workaround. >>> >>> Thanks, >>> CYC >> >> > > >