make-system-wrappers.py (1905B)
1 # This Source Code Form is subject to the terms of the Mozilla Public 2 # License, v. 2.0. If a copy of the MPL was not distributed with this 3 # file, You can obtain one at http://mozilla.org/MPL/2.0/. 4 import os 5 6 from mozbuild.util import FileAvoidWrite 7 8 header_template = """#pragma GCC system_header 9 #pragma GCC visibility push(default) 10 {includes} 11 #pragma GCC visibility pop 12 """ 13 14 include_next_template = "#include_next <{header}>" 15 16 17 # The 'unused' arg is the output file from the file_generate action. We actually 18 # generate all the files in header_list 19 def gen_wrappers(unused, outdir, *header_list): 20 for header in header_list: 21 with FileAvoidWrite(os.path.join(outdir, header)) as f: 22 includes = include_next_template.format(header=header) 23 if header in {"wayland-util.h", "pipewire/pipewire.h"}: 24 # wayland-util.h in Wayland < 1.12 and pipewire.h > 1.4 include 25 # math.h inside an extern "C" block, which breaks including the 26 # header from C++. This was fixed in Wayland 1.12, but for versions 27 # earlier than that, we work around that by force-including math.h 28 # first. 29 includes = "#include <math.h>\n" + includes 30 elif header == "wayland-client.h": 31 # The system wayland-client.h uses quote includes for 32 # wayland-util.h, which means wayland-util.h is picked from the 33 # directory containing wayland-client.h first, and there's no 34 # way around that with -I, -isystem, or other flags. So, we 35 # force to include it from our wrapper, before including the 36 # system header, so that our wayland-util.h wrapper is picked 37 # first. 38 includes = '#include "wayland-util.h"\n' + includes 39 f.write(header_template.format(includes=includes))