gcc45 installation fails: seems to be related to fortran

[philip@…]

This fails on fully patched (including xcode) 10.6 on an i7 4 core MBP, default installation of MacPorts:

sudo port install -d gcc45

The only irregularity I'm aware of is commenting out the LLVM check in /opt/local/var/macports/sources/rsync.macports.org/release/tarballs/ports/devel/gmp to enable it to build (this is a suggested work-around).

looking at logs, it seems to fall over here:

/usr/bin/make -j5 -w bootstrap

here's where it seems to realise it's gone wrong:

checking whether the GNU Fortran compiler is working... no
783 configure: error: GNU Fortran is not working; please report a bug in http://gcc.gnu.org/bugzilla, attaching /opt/local/var/macports    /build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gcc45/gcc45/work/build/x86_64-apple-darwin10/    libgfortran/config.log

[ryandesign (Ryan Carsten Schmidt)]

Please attach the entire main.log and/or report this bug to the developers of gcc as the error message stated.

[philip@…]

/opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gcc45/gcc45/main.log

[jmroot (Joshua Root)]

The attached log starts with the build phase already partly complete. Please clean and generate a complete log.

[jmroot (Joshua Root)]

Also check if this happens with an unmodified gmp; the check for llvm-gcc is there for a reason.

[philip@…]

Replying to jmr@…:

Also check if this happens with an unmodified gmp; the check for llvm-gcc is there for a reason.

The gmp was modified in order to get it to build at all... the unmodified gmp wouldn't build.

[philip@…]

Replying to jmr@…:

The attached log starts with the build phase already partly complete. Please clean and generate a complete log.

Hi jmr. Thanks for looking at this. You may have noticed that the bug was posted about 9 months ago. Since then I've moved machines twice. The main one I'm on is on 10.7 - so reproducing this could be a problem. If I recall, I ended up building gcc45 using source obtained directly from the gcc site - it wasn't convenient nor pretty, but it got the job done. As general note, various mac port problems I've had in the past seemed to be fixed by doing port builds using a clean user. I have never managed to figure out what it is about my user account (my .profile and .bashrc files are trivially simple) is causing the problem - is there a known profile leakage/sensitivity issue?

[ryandesign (Ryan Carsten Schmidt)]

No, the problems you describe regarding user accounts are completely unfamiliar to me.

The error shown in the attached log ("configure: error: GNU Fortran is not working; please report a bug") is familiar and is tracked in #40548.