How do I get g77 (fortran) ?

John23 · n00b Joined: 15 Dec 2004 Posts: 11

I have compiled gcc with USE=+fortran and there is no g77 executable. How do I get gentoo to install the g77/f77 compilers?

Details: I have sys-devel/gcc-3.3.4-r1 installed. The complete list of flags is " +X -bootstrap -build -debug +fortran -gcj -hardened -multilib +nls -objc -pic -static (-uclibc) "

I want g77 in order to run SciPy.

Thanks,

John

pilla · Posted: Thu Dec 16, 2004 1:08 am Post subject:

are you sure you don't have a g77 compiler?

after compiled it, have you done

Akhouk · Posted: Thu Dec 16, 2004 1:10 am Post subject:

try USE="f77" as some versions of gcc use f77 and others fortran. The one you need for your listed version is f77

codergeek42 · Posted: Thu Dec 16, 2004 1:23 am Post subject:

The 'fortran' USE flag only becomes useful with GCC 3.4, if I remember correctly...
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John23 · n00b Joined: 15 Dec 2004 Posts: 11

Thanks for the suggestions.

I tried the same equery command and it reported fortran not f77 as the USE flag! I tried re-emerging anyway adding USE=f77 and still no g77/f77.

etc-update reports nothing left to do.

Any other ideas?

rhill · Posted: Thu Dec 16, 2004 4:16 am Post subject:

gcc-config -l
?

John23 · n00b Joined: 15 Dec 2004 Posts: 11

rhill · Posted: Thu Dec 16, 2004 4:37 am Post subject:

hrm, i thought we might turn up a second unused copy.

and you're right, it is USE=fortran for gcc 3.3.4-r1, at least in the current ebuild. it must have changed.

do you have slocate emerged? could you try a updatedb and then locate g77?

John23 · n00b Joined: 15 Dec 2004 Posts: 11

Akhouk · Posted: Thu Dec 16, 2004 8:34 am Post subject:

So...it seems that g77 is on your system just that somehow the paths or environment variables are mucked up.....

What is the contents of your /etc/env.d/05gcc file?

Does ldoconfig -v give any errors?
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rhill · Posted: Thu Dec 16, 2004 8:46 am Post subject:

actually, i see mine is the same.

John23 · n00b Joined: 15 Dec 2004 Posts: 11

preston · n00b Joined: 11 Jun 2005 Posts: 2

I also tried to get g77 working, since it didn't work after emerge gcc with USE="fortran". Then I found this discussion.

Now I think I can explain why the fortran compiler may be missing by default. It is due to "slotted" gcc. My interpretation of "slotted" is that the gcc package exists in several versions in parallell. When I emerged gcc with USE="fortran ..." I got a new slotted version of gcc with g77 support, but the system was still using the old gcc version!
I discovered that the old gcc version was active by a coincedence when I gave the command:

appetitus · Apprentice Joined: 28 Sep 2003 Posts: 210

Currently, g77 appears to have been renamed 'gfortran' and no longer handles my fortran source.

Some youngster probably forced a change to the latest code version, but the reason for fortran being around this long is all the old code written to 'ancient' version -- in my case a simple $ALIAS no longer works.
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Silent-Hunter · Apprentice Joined: 07 Jul 2013 Posts: 166

I too desire f77, for some old games I want to play that I found. They don't work with the new gfortran, and the makefile has f77 mentioned all over the place.