From ae9ac2a1bfb6fa800b99791b6fc36711dd0c1fbc Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Tim-Philipp=20M=C3=BCller?= Date: Sun, 17 Jan 2021 12:51:59 +0000 Subject: meson: fix cross-compilation issues with gperf header file preprocessing Pass c_args to the compiler when preprocessing the gperf header file, they might contain important bits without which compilation/preprocessing might fail (e.g. with clang on Android). cc.cmd_array() does not include the c_args and we can't easily look them up from the meson.build file, so we have to retrieve from the introspection info. This is basically the Meson equivalent to commit 57103773. --- src/cutout.py | 16 ++++++++++++++-- src/meson.build | 5 ++++- 2 files changed, 18 insertions(+), 3 deletions(-) (limited to 'src') diff --git a/src/cutout.py b/src/cutout.py index 96cafd2..323eec8 100644 --- a/src/cutout.py +++ b/src/cutout.py @@ -1,5 +1,6 @@ import argparse import subprocess +import json import os import re @@ -7,12 +8,23 @@ if __name__== '__main__': parser = argparse.ArgumentParser() parser.add_argument('input') parser.add_argument('output') + parser.add_argument('buildroot') args = parser.parse_known_args() - print (args[0].output) + + # c_args might contain things that are essential for crosscompilation, but + # are not included in cc.cmd_array(), so we have to look them up ourselves + host_cargs = [] + buildroot = args[0].buildroot + with open(os.path.join(buildroot, 'meson-info', 'intro-buildoptions.json')) as json_file: + bopts = json.load(json_file) + for opt in bopts: + if opt['name'] == 'c_args' and opt['section'] == 'compiler' and opt['machine'] == 'host': + host_cargs = opt['value'] + break cpp = args[1] - ret = subprocess.run(cpp + [args[0].input], stdout=subprocess.PIPE, check=True) + ret = subprocess.run(cpp + host_cargs + [args[0].input], stdout=subprocess.PIPE, check=True) stdout = ret.stdout.decode('utf8') diff --git a/src/meson.build b/src/meson.build index f2a4861..7f9bf31 100644 --- a/src/meson.build +++ b/src/meson.build @@ -44,10 +44,13 @@ endif cpp += ['-I', join_paths(meson.current_source_dir(), '..')] +# Can use meson.project_build_dir() once we require Meson 0.56 +project_build_dir = meson.current_build_dir() / '..' + fcobjshash_gperf = custom_target('fcobjshash.gperf', input: 'fcobjshash.gperf.h', output: 'fcobjshash.gperf', - command: [python3, files('cutout.py')[0], '@INPUT@', '@OUTPUT@', cpp], + command: [python3, files('cutout.py')[0], '@INPUT@', '@OUTPUT@', project_build_dir, cpp], build_by_default: true, ) -- cgit v1.2.1