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diff --git a/pugl/waflib/extras/cfg_altoptions.py b/pugl/waflib/extras/cfg_altoptions.py
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+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+# Tool to extend c_config.check_cfg()
+
+__author__ = __maintainer__ = "Jérôme Carretero <cJ-waf@zougloub.eu>"
+__copyright__ = "Jérôme Carretero, 2014"
+
+"""
+
+This tool allows to work around the absence of ``*-config`` programs
+on systems, by keeping the same clean configuration syntax but inferring
+values or permitting their modification via the options interface.
+
+Note that pkg-config can also support setting ``PKG_CONFIG_PATH``,
+so you can put custom files in a folder containing new .pc files.
+This tool could also be implemented by taking advantage of this fact.
+
+Usage::
+
+ def options(opt):
+ opt.load('c_config_alt')
+ opt.add_package_option('package')
+
+ def configure(cfg):
+ conf.load('c_config_alt')
+ conf.check_cfg(...)
+
+Known issues:
+
+- Behavior with different build contexts...
+
+"""
+
+import os
+import functools
+from waflib import Configure, Options, Errors
+
+def name_to_dest(x):
+ return x.lower().replace('-', '_')
+
+
+def options(opt):
+ def x(opt, param):
+ dest = name_to_dest(param)
+ gr = opt.get_option_group("configure options")
+ gr.add_option('--%s-root' % dest,
+ help="path containing include and lib subfolders for %s" \
+ % param,
+ )
+
+ opt.add_package_option = functools.partial(x, opt)
+
+
+check_cfg_old = getattr(Configure.ConfigurationContext, 'check_cfg')
+
+@Configure.conf
+def check_cfg(conf, *k, **kw):
+ if k:
+ lst = k[0].split()
+ kw['package'] = lst[0]
+ kw['args'] = ' '.join(lst[1:])
+
+ if not 'package' in kw:
+ return check_cfg_old(conf, **kw)
+
+ package = kw['package']
+
+ package_lo = name_to_dest(package)
+ package_hi = package.upper().replace('-', '_') # TODO FIXME
+ package_hi = kw.get('uselib_store', package_hi)
+
+ def check_folder(path, name):
+ try:
+ assert os.path.isdir(path)
+ except AssertionError:
+ raise Errors.ConfigurationError(
+ "%s_%s (%s) is not a folder!" \
+ % (package_lo, name, path))
+ return path
+
+ root = getattr(Options.options, '%s_root' % package_lo, None)
+
+ if root is None:
+ return check_cfg_old(conf, **kw)
+ else:
+ def add_manual_var(k, v):
+ conf.start_msg('Adding for %s a manual var' % (package))
+ conf.env["%s_%s" % (k, package_hi)] = v
+ conf.end_msg("%s = %s" % (k, v))
+
+
+ check_folder(root, 'root')
+
+ pkg_inc = check_folder(os.path.join(root, "include"), 'inc')
+ add_manual_var('INCLUDES', [pkg_inc])
+ pkg_lib = check_folder(os.path.join(root, "lib"), 'libpath')
+ add_manual_var('LIBPATH', [pkg_lib])
+ add_manual_var('LIB', [package])
+
+ for x in kw.get('manual_deps', []):
+ for k, v in sorted(conf.env.get_merged_dict().items()):
+ if k.endswith('_%s' % x):
+ k = k.replace('_%s' % x, '')
+ conf.start_msg('Adding for %s a manual dep' \
+ %(package))
+ conf.env["%s_%s" % (k, package_hi)] += v
+ conf.end_msg('%s += %s' % (k, v))
+
+ return True
+