GCC can't find header files

[Miguel Lacerda]

On Sat, Mar 3, 2012 at 10:47 PM, Daniel Ericsson <deric at macports.org> wrote:

> On 3 mar 2012, at 20:48, Ryan Schmidt wrote:
>
> > On Mar 3, 2012, at 10:38, Miguel Lacerda wrote:
> >
> >> I am trying to compile source code that I downloaded from a developer's
> website. I have installed the lastest version of MacPorts (after installing
> Xcode 4.3) and port installed cmake and gcc46 as required. Cmake completes
> without any errors. However, it seems that the compiler is unable to find
> standard header files (e.g. string.h, stdio.h, etc) when I issue the "make"
> command (see error messages below). I have checked that /opt/local/include
> is in my path
> >
> > If you're talking about the $PATH environment variable, then it only
> contains paths to executable programs; it does not have anything to do with
> paths to libraries or include files (headers).
>
> Ryan is right here even though I think Cmake, if I remember correctly,
> searches the PATH as well when building it's Makefile. The two environment
> variables that actually do affect header search paths when compiling are
> C_INCLUDE_PATH and CPLUS_INCLUDE_PATH.
>
> > This file is on my Snow Leopard system as /usr/include/string.h. Is it
> there on your system? If not, have you installed the Xcode command line
> tools? If not, do so.
>
> When you find the headers I'm fairly certain you might need to add the
> path they're at to the environment variables above if there is any
> dependency being built as part of the project, as Ryan says above you
> should find them in "/usr/include".
>
> -- Daniel
>

Hi Daniel,

Thanks so much for your reply. You were absolutely right - setting those
environment variables solved the problem!

Thanks again,
Miguel
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