configure oddity when run via MacPorts

[Bryan Blackburn]

On Sun, May 31, 2009 at 01:07:48PM -0700, Jeremy Huddleston said:
> I'm trying to update cdparanoia.  I can build it manually, but it fails 
> configure via port (I updated base yesterday):
>
> ...
> --->  Configuring cdparanoia
> checking build system type... powerpc-apple-darwin9.7.0
> checking host system type... powerpc-apple-darwin9.7.0
> checking for ranlib... ranlib
[...]
>
> Does anyone have a clue why this is happening?

It looks like configure.in does

   if test -z "$CC"; then
      AC_PROG_CC
   fi

which means that, since MacPorts sets CC to what should be the right one for
the platform, configure skips all the various stuff from AC_PROG_CC...

Removing that if and always doing AC_PROG_CC at least gets it to configure.

Bryan