configure

#!/usr/bin/perl

use strict;
use warnings;

my $prefix = '/usr/local';
my $version = '0.2.0';
my $debug = 0;

for (@ARGV)
{
	if (/^--prefix=(.*)/)
	{
		$prefix = $1;
	}
	elsif (/^--debug/)
	{
		$debug = 1;
	}
	else
	{
		print
"Usage: $0 [OPTION ...]
	--prefix=<prefix>   specify install location (default /usr/local)
	--debug             compile for debugging
";
		exit;
	}
}

unlink 'src/ffind.c';
qx(sed -e "s/\@{VERSION}/$version/" src/ffind.c.in > src/ffind.c);
chmod 0444, 'src/ffind.c';

$prefix .= '/';
$prefix =~ s|/|\\/|g;

my $cflags = ($debug ? '-O0 -g' : '-O2 -fstrict-aliasing -fomit-frame-pointer -DNDEBUG');

unlink 'Makefile';
qx(sed -e "s/\@{PREFIX}/$prefix/g" -e "s/\@{VERSION}/$version/g" -e "s/\@{CFLAGS}/$cflags/g" Makefile.in > Makefile);
chmod 0444, 'Makefile';

#my ($sec, $min, $hour, $mday, $month, $year, $wday, $yday, $dst) = localtime();
#my @months = qw|January February March April May June July August September October November December|;
#my $date = "$mday $months[$month] $year";
my $date = '19 May 2018';

qx(sed -e "s/\@{DATE}/$date/" -e "s/\@{VERSION}/$version/" ffind.1.in > ffind.1);