Re: [Gm2] Building gm2-9.1.0 under Arch Linux

[Gaius Mulley]

Geert Theloosen <address@hidden> writes:

> Hi,
>
> In the recent past I succeeded in building gm2 (8.2.0) under Arch
> Linux, but for me this building was always on a somewhat mysterious
> way. So I tried building a new gm2-9.1.0-branch, and at the end I
> succeeded, but on the same somewhat inexplicable way.
>
> Maybe some Arch Linux users can take advantage of the at the end
> successful build, but for me it's about the hurdles.
>
> After downloading gcc-9.1.0+gm2-git-latest.tar.gz and unpacking it,
> I changed the shebang of
>
> ../gcc-9.1.0+gm2-git-latest/gm2/gcc-versionno/gcc/gm2/tools-src/def2texi.py
>
> because Arch Linux uses Python-3 as the default and the script assumes
> Python-2, to:
>
> #!/usr/bin/python2.
>
> Then I used the Debian gcc-8.2.0 build script and changed the version
> numbering and changed [--enable-languages=c,c++,m2] to
> [...=c,c++,gm2].
> So these are my used commands:
>
> $ mkdir build-9.1.0
> $ cd build-9.1.0
> $ CXXFLAGS=-g BOOT_CFLAGS=-g CFLAGS=-g \
>   ../gcc-9.1.0+gm2-git-latest/gm2/gcc-versionno/configure \
>   --prefix=$HOME/opt \
>   --libexecdir=$HOME/opt/lib \
>   --enable-threads=posix \
>   --enable-clocale=gnu --enable-languages=c,c++,gm2 \
>   --disable-multilib --disable-bootstrap --enable-checking
>
> After doing
>
> $ make
>
> I got the following error message:
> ...
>
> python
> ../../gcc-9.1.0+gm2-git-latest/gm2/gcc-versionno/gcc/gm2/tools-src/def2texi.py
> -uLibraries -s../../gcc-9.1.0+gm2-git-latest/gm2/gcc-versionno/gcc/gm2
> -b/home/geert/Downloads/modula-2/build-9.1.0/gcc/gm2 >
> /home/geert/Downloads/modula-2/build-9.1.0/gcc/gm2/gm2-libs.texi
>   File
> "../../gcc-9.1.0+gm2-git-latest/gm2/gcc-versionno/gcc/gm2/tools-src/def2texi.py",
> line 62
>     print "@node " + l[1] + ", " + next + ", " + previous+ ", " + up
>                  ^
> SyntaxError: Missing parentheses in call to 'print'. Did you mean
> print("@node " + l[1] + ", " + next + ", " + previous + ", " + up)?
> make[2]: ***
> [../../gcc-9.1.0+gm2-git-latest/gm2/gcc-versionno/gcc/gm2/Make-lang.in:237:
> gm2/gm2-libs.texi] Fout 1
> make[2]: Map '/home/geert/Downloads/modula-2/build-9.1.0/gcc' wordt verlaten
> make[1]: *** [Makefile:4354: all-gcc] Fout 2
> make[1]: Map '/home/geert/Downloads/modula-2/build-9.1.0' wordt verlaten
> make: *** [Makefile:970: all] Fout 2
>
> ('Fout' (Dutch) means 'error')
>
> But in a previous step I changed the shebang of def2texi.py. So I
> can't explain the error message. Or, perhaps because python (under
> Arch Linux this is python3) is calling python2?
>
> However, just doing a [make] again without changing anything builds
> everything correctly. How is that possible?
>
> Then, doing a [make install] gives a $HOME/opt directory with the
> binaries, libraries, etc.
>
> Incidentally, I have once before added to my .bashrc: export
> GM2_ROOT=/home/geert/opt
>
> Compiling a simple helloworld.mod with a not recognised Modula command
> ('WritString') with [gm2 -Wall -fmakeall] gives colourized error
> messages, Correcting the error and again compiling the file gives the
> expected a.out.
>
> My question: why does the building succeeds after doing [make] twice
> without correcting anything between the two calls?
>
> Sincerely,
> Geert Theloosen

Hi Geert,

many thanks for the report - the python2/3 prompt is useful thanks will
change to use Python3 now.  I suspect the python program has created an
empty gm2-libs.texi file which allows the second invocation of make to
skip trying to create a new one,


regards,
Gaius