macOS Header files not found on Mac

[gladif]

I have a piece of code in C with header files included.
I run it on Mac OS X Maverick with XCode 4.6.2 installed. GCC is also installed. Note that Command Line Tools in XCode are already installed.

When I compile it, the error I receive says something like this:
add.c:1:19: error: stdio.h: No such file or directory
add.c:2:20: error: stdlib.h: No such file or directory
add.c:3:20: error: unistd.h: No such file or directory

However when I run it on Ubuntu, it compiles without a problem.


what to do?

 

[chown33]

Post your code.

http://www.mikeash.com/getting_answers.html

 

[mrichmon]

Mavericks with XCode in some cases does not setup the correct path to the active developer tools. You can correct this by running the following command at a Terminal prompt:

xcode-select install

Then try compiling your code using gcc on the command-line.