Import of the watch repository from Pebble

third_party/waf/waf-light/waflib/Tools/perl.py

@@ -0,0 +1,157 @@
+#!/usr/bin/env python
+# encoding: utf-8
+# andersg at 0x63.nu 2007
+# Thomas Nagy 2010 (ita)
+
+"""
+Support for Perl extensions. A C/C++ compiler is required::
+
+	def options(opt):
+		opt.load('compiler_c perl')
+	def configure(conf):
+		conf.load('compiler_c perl')
+		conf.check_perl_version((5,6,0))
+		conf.check_perl_ext_devel()
+		conf.check_perl_module('Cairo')
+		conf.check_perl_module('Devel::PPPort 4.89')
+	def build(bld):
+		bld(
+			features     = 'c cshlib perlext',
+			source       = 'Mytest.xs',
+			target       = 'Mytest',
+			install_path = '${ARCHDIR_PERL}/auto')
+		bld.install_files('${ARCHDIR_PERL}', 'Mytest.pm')
+"""
+
+import os
+from waflib import Task, Options, Utils
+from waflib.Configure import conf
+from waflib.TaskGen import extension, feature, before_method
+
+@before_method('apply_incpaths', 'apply_link', 'propagate_uselib_vars')
+@feature('perlext')
+def init_perlext(self):
+	"""
+	Change the values of *cshlib_PATTERN* and *cxxshlib_PATTERN* to remove the
+	*lib* prefix from library names.
+	"""
+	self.uselib = self.to_list(getattr(self, 'uselib', []))
+	if not 'PERLEXT' in self.uselib: self.uselib.append('PERLEXT')
+	self.env['cshlib_PATTERN'] = self.env['cxxshlib_PATTERN'] = self.env['perlext_PATTERN']
+
+@extension('.xs')
+def xsubpp_file(self, node):
+	"""
+	Create :py:class:`waflib.Tools.perl.xsubpp` tasks to process *.xs* files
+	"""
+	outnode = node.change_ext('.c')
+	self.create_task('xsubpp', node, outnode)
+	self.source.append(outnode)
+
+class xsubpp(Task.Task):
+	"""
+	Process *.xs* files
+	"""
+	run_str = '${PERL} ${XSUBPP} -noprototypes -typemap ${EXTUTILS_TYPEMAP} ${SRC} > ${TGT}'
+	color   = 'BLUE'
+	ext_out = ['.h']
+
+@conf
+def check_perl_version(self, minver=None):
+	"""
+	Check if Perl is installed, and set the variable PERL.
+	minver is supposed to be a tuple
+	"""
+	res = True
+	
+	if minver:
+		cver = '.'.join(map(str,minver))
+	else:
+		cver = ''
+
+	self.start_msg('Checking for minimum perl version %s' % cver)
+
+	perl = getattr(Options.options, 'perlbinary', None)
+
+	if not perl:
+		perl = self.find_program('perl', var='PERL')
+	
+	if not perl:
+		self.end_msg("Perl not found", color="YELLOW")
+		return False
+	
+	self.env['PERL'] = perl
+
+	version = self.cmd_and_log([perl, "-e", 'printf \"%vd\", $^V'])
+	if not version:
+		res = False
+		version = "Unknown"
+	elif not minver is None:
+		ver = tuple(map(int, version.split(".")))
+		if ver < minver:
+			res = False
+
+	self.end_msg(version, color=res and "GREEN" or "YELLOW")
+	return res
+
+@conf
+def check_perl_module(self, module):
+	"""
+	Check if specified perlmodule is installed.
+
+	The minimum version can be specified by specifying it after modulename
+	like this::
+
+		def configure(conf):
+			conf.check_perl_module("Some::Module 2.92")
+	"""
+	cmd = [self.env['PERL'], '-e', 'use %s' % module]
+	self.start_msg('perl module %s' % module)
+	try:
+		r = self.cmd_and_log(cmd)
+	except Exception:
+		self.end_msg(False)
+		return None
+	self.end_msg(r or True)
+	return r
+
+@conf
+def check_perl_ext_devel(self):
+	"""
+	Check for configuration needed to build perl extensions.
+
+	Sets different xxx_PERLEXT variables in the environment.
+
+	Also sets the ARCHDIR_PERL variable useful as installation path,
+	which can be overridden by ``--with-perl-archdir`` option.
+	"""
+
+	env = self.env
+	perl = env.PERL
+	if not perl:
+		self.fatal('find perl first')
+
+	def read_out(cmd):
+		return Utils.to_list(self.cmd_and_log(perl + cmd))
+
+	env['LINKFLAGS_PERLEXT'] = read_out(" -MConfig -e'print $Config{lddlflags}'")
+	env['INCLUDES_PERLEXT'] = read_out(" -MConfig -e'print \"$Config{archlib}/CORE\"'")
+	env['CFLAGS_PERLEXT'] = read_out(" -MConfig -e'print \"$Config{ccflags} $Config{cccdlflags}\"'")
+
+	env['XSUBPP'] = read_out(" -MConfig -e'print \"$Config{privlib}/ExtUtils/xsubpp$Config{exe_ext}\"'")
+	env['EXTUTILS_TYPEMAP'] = read_out(" -MConfig -e'print \"$Config{privlib}/ExtUtils/typemap\"'")
+
+	if not getattr(Options.options, 'perlarchdir', None):
+		env['ARCHDIR_PERL'] = self.cmd_and_log(perl + " -MConfig -e'print $Config{sitearch}'")
+	else:
+		env['ARCHDIR_PERL'] = getattr(Options.options, 'perlarchdir')
+
+	env['perlext_PATTERN'] = '%s.' + self.cmd_and_log(perl + " -MConfig -e'print $Config{dlext}'")
+
+def options(opt):
+	"""
+	Add the ``--with-perl-archdir`` and ``--with-perl-binary`` command-line options.
+	"""
+	opt.add_option('--with-perl-binary', type='string', dest='perlbinary', help = 'Specify alternate perl binary', default=None)
+	opt.add_option('--with-perl-archdir', type='string', dest='perlarchdir', help = 'Specify directory where to install arch specific files', default=None)
+