Re: Parameters to make-invoked script

I can't find any method to pass variables to the Makefile other than by the environment, but

It's simple and clean to pass environment variable to the Makefile
It's simple and clean to use environment variable in the Makefile (in sh, ksh, bash and zsh at least)
The environment variables can be passed to the Perl script as arguments even if they were passed to the Makefile as environment variables.

$ cat echo.pl
#!/usr/bin/perl
print("$ARGV[0]\n");

$ cat Makefile
testing:
        echo.pl $(TEXT) > $@

$ TEXT=moo make testing
echo.pl moo > testing

$ cat testing
moo
[download]

I feel this meets your needs. If not, let us know how it doesn't.

Comment on Re: Parameters to make-invoked script Download Code

Replies are listed 'Best First'.
Re^2: Parameters to make-invoked script by Sixtease (Friar) on Jul 23, 2008 at 09:07 UTC
Thanks for the input! I use `ExtUtils::MakeMaker`, so messing with Makefile itself is something I'd like to avoid. If you think that env variables are something I can use to tweak the details of the build process without shame, then I'm very much satisfied. I'll simply take care of the environment variables in the script, that's no problem. Thank you once again. use strict; use warnings; print "Just Another Perl Hacker\n";	[reply] [d/l]
Re^2: Parameters to make-invoked script by betterworld (Curate) on Jul 23, 2008 at 12:48 UTC
`echo.pl $(TEXT) > $@` Note that you will have a really hard time making sure that there are no shell special characters in TEXT. Unfortunately, there is no such thing as system() with several arguments in make. I believe some make programs provide implementation-specific means for quoting strings. However, if you expect TEXT to have strange characters, you'd be better off using the environment.	[reply] [d/l]