Build an SQLite dylib from an amalgamation directory, automatically parsing out the version

buildsqlite

#!/usr/bin/env perl

# Run from inside an SQLite amalgamation directory
# (i.e., extracted from an amalgamation archive).

use warnings;
use strict;
use Cwd;

my $macosxminversion = "10.12";

my ($dir) = getcwd() =~ m#([^/]+)$#;

if (my ($major, $minor, $patch) = $dir =~ m#sqlite-amalgamation-(\d)(\d{2})(\d{2})#) {
	$major = int($major);
	$minor = int($minor);
	$patch = int($patch);
	my $version = "$major.$minor.$patch";
	
	print "SQLite version $version\n";
	
	my @args = ('clang', '-dynamiclib', '-Os',
		'-arch', 'x86_64',
		'-arch', 'arm64',
		"-Wl,-install_name,\@rpath/libsqlite3.dylib,-current_version,$version,-compatibility_version,$major",
		"-mmacosx-version-min=$macosxminversion",
		'-o', 'libsqlite3.dylib',
		'sqlite3.c');
		
	system(@args);
} else {
	print qq("$dir" is not an SQLite amalgamation directory.\n)
}