`file` is used by the perl script.
```
sub _get_file_type($) {
my $file=shift;
open(FILE, '-|') # handle all filenames safely
|| exec('file', $file)
|| die "can't exec file: $!";
my $type=<FILE>;
close FILE;
return $type;
}
```
This script is very handy to run within a `nix-build` context,
specifically during the fixupPhase.
Unfortunately, file is not propagated, and does not exist causing the
build to fail. Fix it by adding it.
Co-authored-by: Jonathan Ringer <jonringer@users.noreply.github.com>
this takes care of the following folders in pkgs/development:
* arduino
* chez-modules
* go-packages
* guile-modules
* idris-modules
* perl-modules
* r-modules
* ruby-modules
dependencies:
perlPackages.AltCryptRSABigInt: init at 0.06
perlPackages.ConvertASCIIArmour: init at 1.4
perlPackages.CryptCAST5_PP: init at 1.04
perlPackages.CryptDES_EDE3: init at 0.01
perlPackages.CryptDSA: init at 1.17
perlPackages.CryptRIPEMD160: init at 0.06
perlPackages.CryptTwofish: init at 2.17
perlPackages.DataBuffer: init at 0.04
perlPackages.DigestMD2: init at 2.04
perlPackages.MathPrimeUtil: init at 0.73
perlPackages.MathPrimeUtilGMP: init at 0.52
perlPackages.TieEncryptedHash: init at 1.24
Since 2.44_01, the behaviour for `check_lib` in their `Makefile.PL` has
been "fixed" to fail when the `assert_lib` function fails to build the
test.
* 2bc1e90c04
Now, this wouldn't be so bad, since it's good to actually test what
stuff is being compiled against.
Except that *something* is wonky with the cross-compilation build-time
Perl.
```
Undefined subroutine &File::Temp::mktemp called at inc/Devel/CheckLib.pm line 236.
```
As far as I know, this is a built-in function from Perl.
* https://perldoc.perl.org/File/Temp.html
Though, something *else* is wrong with `Checklib.pm`. Side-stepping the
issue by (eww) shelling out to `mktemp`, we get these errors:
```
/nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-armv7l-unknown-linux-gnueabihf-binutils-2.31.1/bin/armv7l-unknown-linux-gnueabihf-ld: assertlib_src1_0.553056903257133: file not recognized: file truncated
collect2: error: ld returned 1 exit status
-I/nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-expat-2.2.8-armv7l-unknown-linux-gnueabihf-dev/include -L/nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-expat-2.2.8-armv7l-unknown-linux-gnueabihf/lib -lexpat
/nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-armv7l-unknown-linux-gnueabihf-binutils-2.31.1/bin/armv7l-unknown-linux-gnueabihf-ld: assertlib_src2_0.262169388446154: file not recognized: file truncated
collect2: error: ld returned 1 exit status
Can't link/include C library 'expat.h', 'expat', aborting.
```
Meanwhile, the actual build, while building the library, seemingly has
no issues building using those paths. `¯\_(ツ)_/¯`
Fixes#71296 (Po4a build get stuck in a loop)
Term::ReadKey is an optional dependency. From upstream:
> This module is used to retrieve the terminal's line width.
> If it is not present, the line width can be specified with the COLUMN environment variable.
