9

How can I find out if I have gcc installed on my machine?

I am trying to run CodeRunner, but it isn't responding. I know you have to have gcc installed in order for it to work properly. I do have Xcode 4.0.2 installed (from what I've read, if Xcode is installed then you already have gcc).

Matthew Rankin
  • 5,240
  • 3
  • 26
  • 25

5 Answers5

8
  1. Type gcc at the Terminal prompt. If it says "command not found", you don't. Otherwise, you do.
  2. If that fails, then install from your OSX CD.
Ernest Friedman-Hill
  • 875
  • 1
  • 7
  • 16
  • 4
    Technically, that is testing to see if gcc is in his PATH. Typing gcc could fail even if it is installed. –  Apr 30 '11 at 02:31
  • @objectiveGeek - Yes, but if it's not in his `$PATH` it's not going to be useful, as most scripts that rely on it being "installed" will probably rely on it also being in `$PATH` and thus callable as `gcc` instead of `/my/dumb/install/location/gcc` –  Apr 30 '11 at 02:33
  • @Ernest: It gave me 'no input files'. Does this mean its installed. I'm assuming yes? –  Apr 30 '11 at 02:36
  • @wilis0924: Yes. Also try `gcc -v` to get the installed version number. – Drew Hall Apr 30 '11 at 02:37
  • @Chris Installing `gcc` under /usr/bin is optional in Xcode’s installer. –  Apr 30 '11 at 02:38
  • @Drew Hall: 'version 4.2.1' is that up to date? –  Apr 30 '11 at 02:42
  • @Bavarious - You can install it wherever you want, but if it's not in your `$PATH` it's going to break most outside scripts (which will expect it to be there.) –  Apr 30 '11 at 02:46
  • @Chris Lutz, ObjecctiveGeek is correct as this is a bad answer because it equates not finding a program with not having the program. I, for example, am having a problem where I need gcc-4.7, but synaptic is telling me I already have it, even though I don't know where it is. – puk Oct 25 '13 at 09:42
4

You could just try to see if a gcc executable is present. Try:

ls /usr/bin/gcc*
highBandWidth
  • 647
  • 5
  • 10
  • 20
3

You can use "locate gcc" to find all filenames with gcc in them.

Xenoactive
  • 1,040
  • 5
  • 7
3

Try any terminal command, like:

$ gcc --help

If gcc isn't installed, you will often see a message with a "how to install it" note, complete with the package manager's command.

Gaff
  • 18,569
  • 15
  • 57
  • 68
141.80
  • 89
  • 4
0

On Terminal type

gcc -v

You will get something like below

Using built-in specs.
 ......
gcc version 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.11.00)

This will show you version of GCC installed on your machine. If gcc is not installed then this command will not work as above

silwar
  • 101
  • 3