Objective-C compiler not installed on this system

rlbrig · rlbrig #1 (**permalink**)

05-19-2011, 07:59 PM

When I try to compile code from the command line
(gcc -framework Foundation Prog1.m -o Prog1),
I receive the message that states Objective-c compiler is not installed. I installed the XCode from the Mac OS X cd, and upgraded to XCode 4.0.2.

I figure there is not a PATH set properly. Anyone have a clue?

vansmith · vansmith #2 (**permalink**)

05-19-2011, 08:37 PM

Installing the development tools (Xcode) will install GCC, the appropriate libraries and will create symlinks where necessary. Execute the following to see what it returns (it should return /usr/bin/gcc):

Code:

whereis gcc

If that returns nothing, try reinstalling Xcode. Someone else here had an issue recently similar to yours and reinstalling fixed it.

rlbrig · rlbrig #3 (**permalink**)

05-19-2011, 09:28 PM

When I enter "whereis gcc", it returns /usr/bin/gcc.

vansmith · vansmith #4 (**permalink**)

05-19-2011, 09:48 PM

You should have all the appropriate tools. I just did it here with a simple hello world app and it worked perfectly fine (I'm using GCC 4.2.1). Have you tried reinstalling the dev tools? Have you tried compiling this through Xcode? Others have noted that compiling through Xcode works when it doesn't work doing it "manually" (by hand at the CLI).

xstep · xstep #5 (**permalink**)

05-20-2011, 05:27 PM

Quote:

Originally Posted by rlbrig

I installed the XCode from the Mac OS X cd, and upgraded to XCode 4.0.2.

I figure there is not a PATH set properly. Anyone have a clue?

Could be. If you did the install, and haven't logged out since then, that may be the trick. That PATH gets setup during login. Yes, you can set it manually.

rlbrig · rlbrig #6 (**permalink**)

05-21-2011, 03:21 PM

I reinstalled X Code 4.0.2. I can create a simple "Hello World" through X Code and it works. If I try to compile with a GCC command, I still get the message "Objective-C not installed. I have rebooted.

Dysfunction · Dysfunction #7 (**permalink**)

05-21-2011, 06:23 PM

is /Developer/usr/bin/ in your path?

rlbrig · rlbrig #8 (**permalink**)

05-21-2011, 07:09 PM

Yup. Result of echo $PATH = /usr/local/gnat/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/opt/X11/bin:/usr/X11/bin

Anybody have a path for a system that works?

Dysfunction · Dysfunction #9 (**permalink**)

05-21-2011, 07:34 PM

well, here's mine. I don't see it as being hugely different.

Code:

mikeMbp:~ mike$ echo $PATH
/sw/bin:/sw/sbin:/Users/mike/scripts:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin:/opt/ibm/dscli:/Developer/usr/bin/:/usr/X11R6/bin
mikeMbp:~ mike$

xstep · xstep #10 (**permalink**)

05-22-2011, 04:14 AM

I've installed both 3.2 and 4.x of Xcode. Here is my path when in the tcsh and the whereis statement result for cc.

[mac:~] xstep% echo $PATH
/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin:/usr/local/mysql/bin

[mac:~] xstep% whereis cc
/usr/bin/cc

rlbrig · rlbrig #11 (**permalink**)

05-24-2011, 07:29 PM

Thanks to all who helped. The problem was in my path. Even though "whereis gcc" returned the correct gcc, "which gcc" follows the path and pointed to the gnat gcc. Once I corrected the path, it worked properly.

vansmith #2 (permalink)
Member Since: Oct 19, 2008 Location: Ottawa Posts: 15,302 Mac Specs: 2012 13" MBP (2.5 i5, 8GB)	05-19-2011, 08:37 PM Installing the development tools (Xcode) will install GCC, the appropriate libraries and will create symlinks where necessary. Execute the following to see what it returns (it should return /usr/bin/gcc): Code: whereis gcc If that returns nothing, try reinstalling Xcode. Someone else here had an issue recently similar to yours and reinstalling fixed it. Important Links: Community Guidelines : Use the reputation system if you've been helped. M-F Blog :: Write for the blog :: M-F IRC Channel - Chats every Sunday at 8PM EST.
	QUOTE Thanks

vansmith #4 (permalink)
Member Since: Oct 19, 2008 Location: Ottawa Posts: 15,302 Mac Specs: 2012 13" MBP (2.5 i5, 8GB)	05-19-2011, 09:48 PM You should have all the appropriate tools. I just did it here with a simple hello world app and it worked perfectly fine (I'm using GCC 4.2.1). Have you tried reinstalling the dev tools? Have you tried compiling this through Xcode? Others have noted that compiling through Xcode works when it doesn't work doing it "manually" (by hand at the CLI). Important Links: Community Guidelines : Use the reputation system if you've been helped. M-F Blog :: Write for the blog :: M-F IRC Channel - Chats every Sunday at 8PM EST.
	QUOTE Thanks

Dysfunction #7 (permalink)
Member Since: Mar 17, 2008 Location: Tucson, AZ Posts: 6,527 Mac Specs: 2008 and 2011 15" mbps, late 11 iMac, iPhone 4s, and too many ipods and other stuff	05-21-2011, 06:23 PM is /Developer/usr/bin/ in your path? mike This machine kills fascists Got # ? phear the command line!
	QUOTE Thanks

Dysfunction #9 (permalink)
Member Since: Mar 17, 2008 Location: Tucson, AZ Posts: 6,527 Mac Specs: 2008 and 2011 15" mbps, late 11 iMac, iPhone 4s, and too many ipods and other stuff	05-21-2011, 07:34 PM well, here's mine. I don't see it as being hugely different. Code: mikeMbp:~ mike$ echo $PATH /sw/bin:/sw/sbin:/Users/mike/scripts:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin:/opt/ibm/dscli:/Developer/usr/bin/:/usr/X11R6/bin mikeMbp:~ mike$ mike This machine kills fascists Got # ? phear the command line!
	QUOTE Thanks

xstep #10 (permalink)
Member Since: Jun 25, 2005 Location: On the road Posts: 3,231 Mac Specs: 2011 MBP, i7, 16GB RAM, MBP 2.16Ghz Core Duo, 2GB ram, Dual 867Mhz MDD, 1.75GB ram, ATI 9800 Pro vid	05-22-2011, 04:14 AM I've installed both 3.2 and 4.x of Xcode. Here is my path when in the tcsh and the whereis statement result for cc. [mac:~] xstep% echo $PATH /usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin:/usr/local/mysql/bin [mac:~] xstep% whereis cc /usr/bin/cc CameraTime - Time lapse photography for novice and advanced users. When asking questions, post the version of your software. You'll receive better answers. Please post your results to the thread as it is good feedback.
	QUOTE Thanks

Objective-C compiler not installed on this system

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rlbrig #1 (permalink)
Member Since: Mar 31, 2011 Posts: 8	05-19-2011, 07:59 PM When I try to compile code from the command line (gcc -framework Foundation Prog1.m -o Prog1), I receive the message that states Objective-c compiler is not installed. I installed the XCode from the Mac OS X cd, and upgraded to XCode 4.0.2. I figure there is not a PATH set properly. Anyone have a clue?
	QUOTE Thanks

rlbrig #6 (permalink)
Member Since: Mar 31, 2011 Posts: 8	05-21-2011, 03:21 PM I reinstalled X Code 4.0.2. I can create a simple "Hello World" through X Code and it works. If I try to compile with a GCC command, I still get the message "Objective-C not installed. I have rebooted.
	QUOTE Thanks

rlbrig #8 (permalink)
Member Since: Mar 31, 2011 Posts: 8	05-21-2011, 07:09 PM Yup. Result of echo $PATH = /usr/local/gnat/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/opt/X11/bin:/usr/X11/bin Anybody have a path for a system that works?
	QUOTE Thanks

rlbrig #11 (permalink)
Member Since: Mar 31, 2011 Posts: 8	05-24-2011, 07:29 PM Thanks to all who helped. The problem was in my path. Even though "whereis gcc" returned the correct gcc, "which gcc" follows the path and pointed to the gnat gcc. Once I corrected the path, it worked properly.
	QUOTE Thanks

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