Trouble porting GHC to Haiku: wrong shebang in Perl boot script

[mcandre]

~> perl boot
Can't exec "/usr/bin/perl": No such file or directory at boot line 8.
Running boot-pkgs failed: -1 at boot line 8.
~> which perl
/boot/common/bin/perl

Please change all instances of /usr/bin/perl to /usr/bin/env perl in GHC. That way the GHC build process doesn't depend on perl being installed in a specific place.

[mcandre]

Changing the two instances of /usr/bin/perl to /usr/bin/env perl isn't enough to fix the problem on Haiku.

But changing both of them to just perl helps.

~> perl boot
Creating libraries
...

[igloo]

The GHC build process will detect the location of perl, and use that.

However, the binary distributions make various assumptions about the system, so will never be fully universal.

If you make Haiku packages of GHC, then they should work fine.

[mcandre]

I don't understand. "Porting GHC to a new platform" ( http://hackage.haskell.org/trac/ghc/wiki/Building/Porting) says to run perl boot . The GHC build process as described in that document does NOT detect the location of Perl, rather it assumes Perl is in /usr/bin . This part of the build process fails on Haiku unless the shebang and system call are changed. And the rest of the build process depends on this.

[igloo]

Oh, hmm. What do these commands say for you?

perl --version

echo '#!/tmp/perl' > q.pl; echo 'print "Hello\n"'>> q.pl; perl q.pl

[mcandre]

~> perl --version

This is perl, v5.10.1 (*) built for BePC-haiku

Copyright 1987-2009, Larry Wall

Perl may be copied only under the terms of either the Artistic License or the
GNU General Public License, which may be found in the Perl 5 source kit.

Complete documentation for Perl, including FAQ lists, should be found on
this system using "man perl" or "perldoc perl".  If you have access to the
Internet, point your browser at http://www.perl.org/, the Perl Home Page.
~> echo '#!/tmp/perl' > q.pl; echo 'print "Hello\n"'>> q.pl; perl q.pl
Hello

A recent Perl is installed in Haiku, it's just in a different place than most Unixes.

~> which perl
/boot/common/bin/perl

That's why I'm asking for Perl shebangs to be changed to the more general /usr/bin/env perl , or even better, simply perl . In the boot script, the system call should also be modified.

[igloo]

Ah, I see. So with perl boot it's not the #! line causing the problem, but the system call when running boot-pkgs.

[mcandre]

Modifies the Perl boot script to work on many more systems

[mcandre]

BOTH lines need to be changed. Patch uploaded.

[igloo]

I believe perl boot will work now (changeset:51bbdda993815fc0c3e55cbfcc60ffd512b9d4bd); please reopen if you still have problems.