Configure.pl from tools/dev/create_language.pl doesn't play nice with git

[arnsholt]

The Configure.pl script generated by tools/dev/create_language.pl clones Parrot from GitHub, but it's not quite right. It still thinks build/PARROT_REVISION contains a numeric revision number, not a tag or checksum, which makes it emit this error:

Argument "RELEASE_3_0_0" isn't numeric in addition (+) at Configure.pl line 25, <$REQ> line 1.

The corresponding build/gen_parrot.pl has a similar problem:

Argument "RELEASE_3_0_0" isn't numeric in addition (+) at build/gen_parrot.pl line 31, <$REQ> line 1.

Perhaps the simplest way to fix this would be to adapt the solution used in Rakudo's Configure.pl.

Originally http://trac.parrot.org/parrot/ticket/2003

[jkeenan]

Replying to arnsholt:

Perhaps the simplest way to fix this would be to adapt the solution used in Rakudo's Configure.pl.

Adding link to where that program is stored:  Rakudo's Configure.pl

[jkeenan]

See also TT #2009.

[leto]

This is most of the code that needs to be ported/borrowed:

 https://github.com/rakudo/rakudo/blob/master/build/lib/Parrot/CompareRevisions.pm