switch the build system to waf

This commit adds a new build system based on waf. configure and Makefile
are deprecated effective immediately and someday in the future they will be
removed (they are still available by running ./old-configure).

You can find how the choice for waf came to be in `DOCS/waf-buildsystem.rst`.
TL;DR: we couldn't get the same level of abstraction and customization with
other build systems we tried (CMake and autotools).

For guidance on how to build the software now, take a look at README.md
and the cross compilation guide.

CREDITS:
This is a squash of ~250 commits. Some of them are not by me, so here is the
deserved attribution:

 - @wm4 contributed some Windows fixes, renamed configure to old-configure
   and contributed to the bootstrap script. Also, GNU/Linux testing.
 - @lachs0r contributed some Windows fixes and the bootstrap script.
 - @Nikoli contributed a lot of testing and discovered many bugs.
 - @CrimsonVoid contributed changes to the bootstrap script.

1 files changed, 26 insertions, 0 deletions

diff --git a/waftools/inflectors.py b/waftools/inflectors.py
new file mode 100644
index 0000000000..3641de8818
--- /dev/null
+++ b/waftools/inflectors.py
@@ -0,0 +1,26 @@
+import re
+
+class DependencyInflector(object):
+    def __init__(self, dependency):
+        self.dep = dependency
+
+    def storage_key(self):
+        return self.__underscore__(self.dep)
+
+    def define_key(self):
+        return ("have_" + self.storage_key()).upper()
+
+    def define_dict(self):
+        return {'define_name': self.define_key()}
+
+    def storage_dict(self):
+        return {'uselib_store': self.storage_key()}
+
+    def __underscore__(self, word):
+        """ Converts a word "into_it_s_underscored_version"
+        Convert any "CamelCased" or "ordinary Word" into an
+        "underscored_word"."""
+
+        return  re.sub('[^A-Z^a-z^0-9]+', '_', \
+                re.sub('([a-z\d])([A-Z])', '\\1_\\2', \
+                re.sub('([A-Z]+)([A-Z][a-z])', '\\1_\\2', re.sub('::', '/', word)))).lower()