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39 lines
1.8 KiB
Python
39 lines
1.8 KiB
Python
# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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import os
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from mozbuild.util import FileAvoidWrite
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header_template = """#pragma GCC system_header
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#pragma GCC visibility push(default)
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{includes}
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#pragma GCC visibility pop
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"""
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include_next_template = "#include_next <{header}>"
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# The 'unused' arg is the output file from the file_generate action. We actually
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# generate all the files in header_list
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def gen_wrappers(unused, outdir, *header_list):
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for header in header_list:
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with FileAvoidWrite(os.path.join(outdir, header)) as f:
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includes = include_next_template.format(header=header)
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if header == "wayland-util.h":
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# wayland-util.h in Wayland < 1.12 includes math.h inside an
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# extern "C" block, which breaks including the header from C++.
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# This was fixed in Wayland 1.12, but for versions earlier than
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# that, we work around that by force-including math.h first.
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includes = "#include <math.h>\n" + includes
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elif header == "wayland-client.h":
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# The system wayland-client.h uses quote includes for
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# wayland-util.h, which means wayland-util.h is picked from the
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# directory containing wayland-client.h first, and there's no
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# way around that with -I, -isystem, or other flags. So, we
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# force to include it from our wrapper, before including the
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# system header, so that our wayland-util.h wrapper is picked
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# first.
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includes = '#include "wayland-util.h"\n' + includes
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f.write(header_template.format(includes=includes))
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