Fix and improve the build system
- Fix automatic architecture detection - Fix compiling with MinGW on Linux - MinGW on Windows is still not working though - Default to Clang on macOS - Remove redundant `use_custom_api_file` option - Format SConstruct using Flake8 This closes #245.pull/261/head
Hugo Locurcio
parent
df04c4097f
commit
976a188837
151
SConstruct
151
SConstruct
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@ -1,6 +1,7 @@
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#!python
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#!/usr/bin/env python
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import os, subprocess, platform, sys
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import os
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import sys
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def add_sources(sources, dir, extension):
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@ -8,7 +9,8 @@ def add_sources(sources, dir, extension):
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if f.endswith('.' + extension):
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sources.append(dir + '/' + f)
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# Try to detect the host platform automatically
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# Try to detect the host platform automatically.
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# This is used if no `platform` argument is passed
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if sys.platform.startswith('linux'):
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host_platform = 'linux'
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@ -17,50 +19,86 @@ elif sys.platform == 'darwin':
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elif sys.platform == 'win32':
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host_platform = 'windows'
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else:
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raise ValueError('Could not detect platform automatically, please specify with platform=<platform>')
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raise ValueError(
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'Could not detect platform automatically, please specify with '
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'platform=<platform>'
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)
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opts = Variables([], ARGUMENTS)
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opts.Add(EnumVariable('platform', 'Target platform', host_platform,
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opts.Add(EnumVariable(
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'platform',
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'Target platform',
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host_platform,
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allowed_values=('linux', 'osx', 'windows'),
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ignorecase=2))
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opts.Add(EnumVariable('bits', 'Target platform bits', 'default', ('default', '32', '64')))
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opts.Add(BoolVariable('use_llvm', 'Use the LLVM compiler - only effective when targeting Linux', False))
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opts.Add(BoolVariable('use_mingw', 'Use the MinGW compiler - only effective on Windows', False))
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ignorecase=2
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))
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opts.Add(EnumVariable(
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'bits',
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'Target platform bits',
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'default',
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('default', '32', '64')
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))
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opts.Add(BoolVariable(
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'use_llvm',
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'Use the LLVM compiler - only effective when targeting Linux',
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False
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))
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opts.Add(BoolVariable(
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'use_mingw',
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'Use the MinGW compiler instead of MSVC - only effective on Windows',
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False
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))
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# Must be the same setting as used for cpp_bindings
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opts.Add(EnumVariable('target', 'Compilation target', 'debug',
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opts.Add(EnumVariable(
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'target',
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'Compilation target',
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'debug',
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allowed_values=('debug', 'release'),
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ignorecase=2))
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opts.Add(PathVariable('headers_dir', 'Path to the directory containing Godot headers', 'godot_headers', PathVariable.PathIsDir))
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opts.Add(BoolVariable('use_custom_api_file', 'Use a custom JSON API file', False))
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opts.Add(PathVariable('custom_api_file', 'Path to the custom JSON API file', None, PathVariable.PathIsFile))
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opts.Add(BoolVariable('generate_bindings', 'Generate GDNative API bindings', False))
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unknown = opts.UnknownVariables()
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if unknown:
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print("Unknown variables:" + unknown.keys())
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Exit(1)
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ignorecase=2
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))
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opts.Add(PathVariable(
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'headers_dir',
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'Path to the directory containing Godot headers',
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'godot_headers',
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PathVariable.PathIsDir
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))
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opts.Add(PathVariable(
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'custom_api_file',
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'Path to a custom JSON API file',
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None,
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PathVariable.PathIsFile
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))
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opts.Add(BoolVariable(
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'generate_bindings',
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'Generate GDNative API bindings',
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False
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))
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env = Environment()
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opts.Update(env)
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Help(opts.GenerateHelpText(env))
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# This makes sure to keep the session environment variables on Windows
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# This way, you can run SCons in a Visual Studio 2017 prompt and it will find all the required tools
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if env['platform'] == 'windows':
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is64 = sys.maxsize > 2**32
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if (
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env['TARGET_ARCH'] == 'amd64' or
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env['TARGET_ARCH'] == 'emt64' or
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env['TARGET_ARCH'] == 'x86_64'
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):
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is64 = True
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if env['bits'] == 'default':
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env['bits'] = '64' if is64 else '32'
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# This makes sure to keep the session environment variables on Windows.
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# This way, you can run SCons in a Visual Studio 2017 prompt and it will find
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# all the required tools
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if host_platform == 'windows':
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if env['bits'] == '64':
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env = Environment(TARGET_ARCH='amd64')
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elif env['bits'] == '32':
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env = Environment(TARGET_ARCH='x86')
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else:
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print("Warning: bits argument not specified, target arch is=" + env['TARGET_ARCH'])
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opts.Update(env)
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is64 = False
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if (env['platform'] == 'osx' or env['TARGET_ARCH'] == 'amd64' or env['TARGET_ARCH'] == 'emt64' or env['TARGET_ARCH'] == 'x86_64'):
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is64 = True
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if env['bits'] == 'default':
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env['bits'] = '64' if is64 else '32'
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opts.Update(env)
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if env['platform'] == 'linux':
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if env['use_llvm']:
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@ -82,11 +120,22 @@ if env['platform'] == 'linux':
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env.Append(LINKFLAGS=['-m32'])
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elif env['platform'] == 'osx':
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# Use Clang on macOS by default
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env['CXX'] = 'clang++'
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if env['bits'] == '32':
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raise ValueError('Only 64-bit builds are supported for the macOS target.')
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raise ValueError(
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'Only 64-bit builds are supported for the macOS target.'
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)
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env.Append(CCFLAGS=['-g', '-std=c++14', '-arch', 'x86_64'])
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env.Append(LINKFLAGS=['-arch', 'x86_64', '-framework', 'Cocoa', '-Wl,-undefined,dynamic_lookup'])
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env.Append(LINKFLAGS=[
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'-arch',
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'x86_64',
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'-framework',
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'Cocoa',
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'-Wl,-undefined,dynamic_lookup',
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])
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if env['target'] == 'debug':
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env.Append(CCFLAGS=['-Og'])
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@ -101,40 +150,56 @@ elif env['platform'] == 'windows':
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env.Append(CCFLAGS=['/EHsc', '/D_DEBUG', '/MDd'])
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elif env['target'] == 'release':
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env.Append(CCFLAGS=['/O2', '/EHsc', '/DNDEBUG', '/MD'])
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else:
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# MinGW
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elif host_platform == 'linux':
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# Cross-compilation using MinGW
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if env['bits'] == '64':
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env['CXX'] = 'x86_64-w64-mingw32-g++'
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elif env['bits'] == '32':
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env['CXX'] = 'i686-w64-mingw32-g++'
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# Native or cross-compilation using MinGW
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if host_platform == 'linux' or env['use_mingw']:
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env.Append(CCFLAGS=['-g', '-O3', '-std=c++14', '-Wwrite-strings'])
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env.Append(LINKFLAGS=['--static', '-Wl,--no-undefined', '-static-libgcc', '-static-libstdc++'])
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env.Append(LINKFLAGS=[
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'--static',
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'-Wl,--no-undefined',
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'-static-libgcc',
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'-static-libstdc++',
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])
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env.Append(CPPPATH=['.', env['headers_dir'], 'include', 'include/gen', 'include/core'])
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env.Append(CPPPATH=[
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'.',
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env['headers_dir'],
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'include',
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'include/gen',
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'include/core',
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])
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# Generate bindings?
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json_api_file = ''
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if env['use_custom_api_file']:
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if 'custom_api_file' in env:
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json_api_file = env['custom_api_file']
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else:
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json_api_file = os.path.join(os.getcwd(), 'godot_headers', 'api.json')
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if env['generate_bindings']:
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# Actually create the bindings here
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import binding_generator
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binding_generator.generate_bindings(json_api_file)
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# source to compile
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# Sources to compile
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sources = []
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add_sources(sources, 'src/core', 'cpp')
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add_sources(sources, 'src/gen', 'cpp')
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library = env.StaticLibrary(
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target='bin/' + 'libgodot-cpp.{}.{}.{}'.format(env['platform'], env['target'], env['bits']), source=sources
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target='bin/' + 'libgodot-cpp.{}.{}.{}'.format(
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env['platform'],
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env['target'],
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env['bits'],
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), source=sources
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)
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Default(library)
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@ -1,4 +1,4 @@
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#!python
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#!/usr/bin/env python
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import json
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