1# -*- mode:python -*-
2
3# Copyright (c) 2013, 2015, 2016 ARM Limited
4# All rights reserved.
5#
6# The license below extends only to copyright in the software and shall
7# not be construed as granting a license to any other intellectual
8# property including but not limited to intellectual property relating

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1326#
1327# This builder and wrapper method are used to set up a directory with
1328# switching headers. Those are headers which are in a generic location and
1329# that include more specific headers from a directory chosen at build time
1330# based on the current build settings.
1331#
1332###################################################
1333
1334def build_switching_header(target, source, env):
1335 path = str(target[0])
1336 subdir = str(source[0])
1337 dp, fp = os.path.split(path)
1338 dp = os.path.relpath(os.path.realpath(dp),
1339 os.path.realpath(env['BUILDDIR']))
1340 with open(path, 'w') as hdr:
1341 print >>hdr, '#include "%s/%s/%s"' % (dp, subdir, fp)

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1350main.Append(BUILDERS = { 'SwitchingHeader': switching_header_builder })
1351
1352def switching_headers(self, headers, source):
1353 for header in headers:
1354 self.SwitchingHeader(header, source)
1355
1356main.AddMethod(switching_headers, 'SwitchingHeaders')
1357
1358# all-isas -> all-deps -> all-environs -> all_targets
1359main.Alias('#all-isas', [])
1360main.Alias('#all-deps', '#all-isas')
1361
1362# Dummy target to ensure all environments are created before telling
1363# SCons what to actually make (the command line arguments). We attach
1364# them to the dependence graph after the environments are complete.
1365ORIG_BUILD_TARGETS = list(BUILD_TARGETS) # force a copy; gets closure to work.

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