xcb-proto: add upstream patch for python3.5 build failure

Since we run compileall on all python files in TARGET_DIR as part of
the finalization, the align.py from xcb-proto will be compiled (it is
not compiled as part of the package build). This file contains mixed
tab-spaces indentation, which python 3.5 no longer allows.

Add an upstream patch that cleans up the indentation in this file.

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/x11r7/xcb-proto/0001-Make-whitespace-use-consistent.patch

@@ -0,0 +1,212 @@
+From ea7a3ac6c658164690e0febb55f4467cb9e0bcac Mon Sep 17 00:00:00 2001
+From: Thomas Klausner <wiz@NetBSD.org>
+Date: Thu, 19 May 2016 17:30:04 +0200
+Subject: [PATCH] Make whitespace use consistent.
+
+At least python-3.5.x complains about this forcefully.
+
+Signed-off-by: Thomas Klausner <wiz@NetBSD.org>
+Signed-off-by: Uli Schlachter <psychon@znc.in>
+Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
+---
+ xcbgen/align.py | 96 ++++++++++++++++++++++++++++-----------------------------
+ 1 file changed, 48 insertions(+), 48 deletions(-)
+
+diff --git a/xcbgen/align.py b/xcbgen/align.py
+index 5e31838..d4c12ee 100644
+--- a/xcbgen/align.py
++++ b/xcbgen/align.py
+@@ -16,12 +16,12 @@ class Alignment(object):
+         return self.align == other.align and self.offset == other.offset
+ 
+     def __str__(self):
+-	return "(align=%d, offset=%d)" % (self.align, self.offset)
++        return "(align=%d, offset=%d)" % (self.align, self.offset)
+ 
+     @staticmethod
+     def for_primitive_type(size):
+-	# compute the required start_alignment based on the size of the type
+-	if size % 8 == 0:
++        # compute the required start_alignment based on the size of the type
++        if size % 8 == 0:
+             # do 8-byte primitives require 8-byte alignment in X11?
+             return Alignment(8,0)
+         elif size % 4 == 0:
+@@ -33,7 +33,7 @@ class Alignment(object):
+ 
+ 
+     def align_after_fixed_size(self, size):
+-	new_offset = (self.offset + size) % self.align
++        new_offset = (self.offset + size) % self.align
+         return Alignment(self.align, new_offset)
+ 
+ 
+@@ -41,7 +41,7 @@ class Alignment(object):
+         '''
+         Assuming the given external_align, checks whether
+         self is fulfilled for all cases.
+-	Returns True if yes, False otherwise.
++        Returns True if yes, False otherwise.
+         '''
+         if self.align == 1 and self.offset == 0:
+             # alignment 1 with offset 0 is always fulfilled
+@@ -55,9 +55,9 @@ class Alignment(object):
+             # the external align guarantees less alignment -> not guaranteed
+             return False
+ 
+-	if external_align.align % self.align != 0:
++        if external_align.align % self.align != 0:
+             # the external align cannot be divided by our align
+-	    # -> not guaranteed
++            # -> not guaranteed
+             # (this can only happen if there are alignments that are not
+             # a power of 2, which is highly discouraged. But better be
+             # safe and check for it)
+@@ -72,7 +72,7 @@ class Alignment(object):
+ 
+     def combine_with(self, other):
+         # returns the alignment that is guaranteed when
+-	# both, self or other, can happen
++        # both, self or other, can happen
+         new_align = gcd(self.align, other.align)
+         new_offset_candidate1 = self.offset % new_align
+         new_offset_candidate2 = other.offset % new_align
+@@ -83,8 +83,8 @@ class Alignment(object):
+             new_align = gcd(new_align, offset_diff)
+             new_offset_candidate1 = self.offset % new_align
+             new_offset_candidate2 = other.offset % new_align
+-	    assert new_offset_candidate1 == new_offset_candidate2
+-	    new_offset = new_offset_candidate1
++            assert new_offset_candidate1 == new_offset_candidate2
++            new_offset = new_offset_candidate1
+         # return the result
+         return Alignment(new_align, new_offset)
+ 
+@@ -92,44 +92,44 @@ class Alignment(object):
+ class AlignmentLog(object):
+ 
+     def __init__(self):
+-	self.ok_list = []
+-	self.fail_list = []
+-	self.verbosity = 1
++        self.ok_list = []
++        self.fail_list = []
++        self.verbosity = 1
+ 
+     def __str__(self):
+-	result = ""
++        result = ""
+ 
+-	# output the OK-list
+-	for (align_before, field_name, type_obj, callstack, align_after) in self.ok_list:
+-	    stacksize = len(callstack)
++        # output the OK-list
++        for (align_before, field_name, type_obj, callstack, align_after) in self.ok_list:
++            stacksize = len(callstack)
+             indent = '  ' * stacksize
+-	    if self.ok_callstack_is_relevant(callstack):
++            if self.ok_callstack_is_relevant(callstack):
+                 if field_name is None or field_name == "":
+-	            result += ("    %sok: %s:\n\t%sbefore: %s, after: %s\n"
+-		        % (indent, str(type_obj), indent, str(align_before), str(align_after)))
+-	        else:
+-		    result += ("    %sok: field \"%s\" in %s:\n\t%sbefore: %s, after: %s\n"
+-		        % (indent, str(field_name), str(type_obj),
+-		           indent, str(align_before), str(align_after)))
++                    result += ("    %sok: %s:\n\t%sbefore: %s, after: %s\n"
++                        % (indent, str(type_obj), indent, str(align_before), str(align_after)))
++                else:
++                    result += ("    %sok: field \"%s\" in %s:\n\t%sbefore: %s, after: %s\n"
++                        % (indent, str(field_name), str(type_obj),
++                           indent, str(align_before), str(align_after)))
+                 if self.verbosity >= 1:
+-		    result += self.callstack_to_str(indent, callstack)
++                    result += self.callstack_to_str(indent, callstack)
+ 
+-	# output the fail-list
+-	for (align_before, field_name, type_obj, callstack, reason) in self.fail_list:
+-	    stacksize = len(callstack)
++        # output the fail-list
++        for (align_before, field_name, type_obj, callstack, reason) in self.fail_list:
++            stacksize = len(callstack)
+             indent = '  ' * stacksize
+-	    if field_name is None or field_name == "":
+-	        result += ("    %sfail: align %s is incompatible with\n\t%s%s\n\t%sReason: %s\n"
+-		    % (indent, str(align_before), indent, str(type_obj), indent, reason))
+-	    else:
+-		result += ("    %sfail: align %s is incompatible with\n\t%sfield \"%s\" in %s\n\t%sReason: %s\n"
+-		    % (indent, str(align_before), indent, str(field_name), str(type_obj), indent, reason))
++            if field_name is None or field_name == "":
++                result += ("    %sfail: align %s is incompatible with\n\t%s%s\n\t%sReason: %s\n"
++                    % (indent, str(align_before), indent, str(type_obj), indent, reason))
++            else:
++                result += ("    %sfail: align %s is incompatible with\n\t%sfield \"%s\" in %s\n\t%sReason: %s\n"
++                    % (indent, str(align_before), indent, str(field_name), str(type_obj), indent, reason))
+ 
+             if self.verbosity >= 1:
+-	        result += self.callstack_to_str(indent, callstack)
++                result += self.callstack_to_str(indent, callstack)
+ 
+ 
+-	return result
++        return result
+ 
+ 
+     def callstack_to_str(self, indent, callstack):
+@@ -137,41 +137,41 @@ class AlignmentLog(object):
+         for stack_elem in callstack:
+             result += "\t  %s%s\n" % (indent, str(stack_elem))
+         result += "\t%s]\n" % indent
+-	return result
++        return result
+ 
+ 
+     def ok_callstack_is_relevant(self, ok_callstack):
+         # determine whether an ok callstack is relevant for logging
+-	if self.verbosity >= 2:
+-	    return True
++        if self.verbosity >= 2:
++            return True
+ 
+         # empty callstacks are always relevant
+-	if len(ok_callstack) == 0:
++        if len(ok_callstack) == 0:
+             return True
+ 
+-	# check whether the ok_callstack is a subset or equal to a fail_callstack
++        # check whether the ok_callstack is a subset or equal to a fail_callstack
+         for (align_before, field_name, type_obj, fail_callstack, reason) in self.fail_list:
+             if len(ok_callstack) <= len(fail_callstack):
+                 zipped = zip(ok_callstack, fail_callstack[:len(ok_callstack)])
+-		is_subset = all([i == j for i, j in zipped])
+-		if is_subset:
++                is_subset = all([i == j for i, j in zipped])
++                if is_subset:
+                     return True
+ 
+         return False
+ 
+ 
+     def ok(self, align_before, field_name, type_obj, callstack, align_after):
+-	self.ok_list.append((align_before, field_name, type_obj, callstack, align_after))
++        self.ok_list.append((align_before, field_name, type_obj, callstack, align_after))
+ 
+     def fail(self, align_before, field_name, type_obj, callstack, reason):
+-	self.fail_list.append((align_before, field_name, type_obj, callstack, reason))
++        self.fail_list.append((align_before, field_name, type_obj, callstack, reason))
+ 
+     def append(self, other):
+-	self.ok_list.extend(other.ok_list)
+-	self.fail_list.extend(other.fail_list)
++        self.ok_list.extend(other.ok_list)
++        self.fail_list.extend(other.fail_list)
+ 
+     def ok_count(self):
+-	return len(self.ok_list)
++        return len(self.ok_list)
+ 
+ 
+ 
+-- 
+2.8.1
+