Error: Unable to open port: can't set "compiler.blacklist": couldn't determine build number of compiler "gcc-4.2"

[Ryan Schmidt]

On Nov 3, 2013, at 19:47, Brickle Macho wrote:

> Not sure how it got there.  I am at the limit of my Mac Ports knowledge.   Do I need to uninstall something?         Here is the output from the command:
> 
> 
> $gcc-4.2 -v
> Using built-in specs.
> COLLECT_GCC=gcc-4.2
> COLLECT_LTO_WRAPPER=/opt/local/libexec/gcc/x86_64-apple-darwin13/4.7.3/lto-wrapper
> Target: x86_64-apple-darwin13
> Configured with: /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gcc47/gcc47/work/gcc-4.7.3/configure --prefix=/opt/local --build=x86_64-apple-darwin13 --enable-languages=c,c++,objc,obj-c++,lto,fortran,java --libdir=/opt/local/lib/gcc47 --includedir=/opt/local/include/gcc47 --infodir=/opt/local/share/info --mandir=/opt/local/share/man --datarootdir=/opt/local/share/gcc-4.7 --with-libiconv-prefix=/opt/local --with-local-prefix=/opt/local --with-system-zlib --disable-nls --program-suffix=-mp-4.7 --with-gxx-include-dir=/opt/local/include/gcc47/c++/ --with-gmp=/opt/local --with-mpfr=/opt/local --with-mpc=/opt/local --with-ppl=/opt/local --with-cloog=/opt/local --enable-cloog-backend=isl --disable-cloog-version-check --enable-stage1-checking --disable-multilib --enable-lto --enable-libstdcxx-time --with-as=/opt/local/bin/as --with-ld=/opt/local/bin/ld --with-ar=/opt/local/bin/ar --with-bugurl=https://trac.macports.org/newticket --disable-ppl-version-check --with-pkgversion='MacPorts gcc47 4.7.3_3'
> Thread model: posix
> gcc version 4.7.3 (MacPorts gcc47 4.7.3_3)
> $

Where is “gcc-4.2”? Type “which gcc-4.2” to find out. It appears that “gcc-4.2” is a symlink to MacPorts gcc 4.7, which is definitely wrong and if so you should delete that symlink.