Tried to install Bison, for whatever reason it wont install...see below. Any help? Macintosh:~ jswelch$ sudo port clean Can't map the URL 'file://.' to a port description file ("Could not find Portfile in /Users/jswelch"). Please verify that the directory and portfile syntax are correct. To use the current port, you must be in a port's directory. (you might also see this message if a pseudo-port such as outdated or installed expands to no ports). Error: Unable to open port: Could not find Portfile in /Users/jswelch Macintosh:~ jswelch$ sudo port install bison ---> Configuring expat Error: Target org.macports.configure returned: configure failure: shell command " cd "/opt/local/var/macports/build/ _opt_local_var_macports_sources_rsync .macports.org_release_ports_textproc_expat/work/expat-2.0.1" && ./ configure --prefix=/opt/local --mandir=/opt/local/share/man " returned error 77 Command output: checking build system type... i386-apple-darwin9.1.0 checking host system type... i386-apple-darwin9.1.0 checking for gcc... gcc checking for C compiler default output file name... configure: error: C compiler cannot create executables See `config.log' for more details. Error: The following dependencies failed to build: gettext expat libiconv m4 Error: Status 1 encountered during processing.