MacBook Pro, Intel CoreDuo, 2 GHz, MacOS 10.5, MacPorts 1.520 Just got my Leopard installed yesterday, checking for outdated ports... coreutils Fine so far, then this happens: Macintosh:~ thorsten$ sudo port upgrade coreutils Password: ---> Configuring coreutils 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_sysutils_coreutils/work/coreutils-6.9" && ./configure --prefix=/opt/local --program-prefix=g --disable-nls " returned error 77 Command output: checking build system type... i386-apple-darwin9.0.0 checking host system type... i386-apple-darwin9.0.0 configure: autobuild project... GNU coreutils configure: autobuild revision... 6.9 configure: autobuild hostname... Macintosh.local configure: autobuild timestamp... 20071031-184539 checking for a BSD-compatible install... /opt/local/bin/ginstall -c checking whether build environment is sane... yes checking for a thread-safe mkdir -p... /opt/local/bin/gmkdir -p checking for gawk... no checking for mawk... no checking for nawk... no checking for awk... awk checking whether make sets $(MAKE)... yes checking for style of include used by make... GNU checking for gcc... gcc checking for C compiler default output file name... configure: error: C compiler cannot create executables See `config.log' for more details. Error: Unable to upgrade port: 1 Macintosh:~ thorsten$ What seems to be the problem? Cheers, Thorsten.