compiling gcc 4.1.2 to get gfortran-4.1.2

I need to do this to use thermocalc tq on my linux computer (debian squeeze).

1) Download
I think I downloaded and untarred (I had these on my computer from previous time)
gcc-fortran-4.1.2.tar.gz (not sure this is needed — I think other folder contains everything!?)

2) Install prerequisites

3) Make a new directory in which you will compile gcc (first trick you can learn from reading the documentation — unlike most other packages it is not intended to build gcc in the src directory)

4) Configure
enter DIR and run

/blah/blah/gcc-4.1.2/configure --prefix=/opt/gcc412 
--program-suffix=412 --enable-shared 
--enable-threads=posix --enable-checking=release 
--with-system-zlib --disable-libunwind-exceptions 
--enable-__cxa_atexit --disable-multilib

5) Avoid a bug
then edit the make file to remove error about makeinfo

MAKEINFO = /blah/missing makeinfo
needs to be changed to (make sure you actually have makeinfo! which is in texinfo package I think)
MAKEINFO = makeinfo

6) Compile and install
I think after that you can just compile with make or make all

More sophisticated things are possible build gcc, to bootstrap the compiler. I don’t think this is necessary for what I need.

Making destination be /opt means that gcc should not appear in the PATH with higher priority than /usr/bin, as will happen if you place in /usr/local. Suffix of 412 means you will get binaries with different name than gcc so it should not allow any confusion to occur.

One comment

  1. p.s. you will need to install make if you didn’t have it already.


    …GMP-4.2.2 which I can no longer install on debian wheezy so probably have to compile and build gcc-4.1.2 to make it, to make prerequisites for gfortran.

    ..MPFR which i compiled last time.

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