c2a669a9f0
Many contributors (me included) did not fully understand what CCFLAGS, CXXFLAGS and CPPFLAGS refer to exactly, and were thus not using them in the way they are intended to be. As per the SCons manual: https://www.scons.org/doc/HTML/scons-user/apa.html - CCFLAGS: General options that are passed to the C and C++ compilers. - CFLAGS: General options that are passed to the C compiler (C only; not C++). - CXXFLAGS: General options that are passed to the C++ compiler. By default, this includes the value of $CCFLAGS, so that setting $CCFLAGS affects both C and C++ compilation. - CPPFLAGS: User-specified C preprocessor options. These will be included in any command that uses the C preprocessor, including not just compilation of C and C++ source files [...], but also [...] Fortran [...] and [...] assembly language source file[s]. TL;DR: Compiler options go to CCFLAGS, unless they must be restricted to either C (CFLAGS) or C++ (CXXFLAGS). Preprocessor defines go to CPPFLAGS.
373 lines
14 KiB
Python
373 lines
14 KiB
Python
import methods
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import os
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def is_active():
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return True
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def get_name():
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return "Windows"
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def can_build():
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if (os.name == "nt"):
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# Building natively on Windows
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# If VCINSTALLDIR is set in the OS environ, use traditional Godot logic to set up MSVC
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if (os.getenv("VCINSTALLDIR")): # MSVC, manual setup
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return True
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# Otherwise, let SCons find MSVC if installed, or else Mingw.
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# Since we're just returning True here, if there's no compiler
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# installed, we'll get errors when it tries to build with the
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# null compiler.
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return True
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if (os.name == "posix"):
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# Cross-compiling with MinGW-w64 (old MinGW32 is not supported)
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mingw32 = "i686-w64-mingw32-"
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mingw64 = "x86_64-w64-mingw32-"
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if (os.getenv("MINGW32_PREFIX")):
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mingw32 = os.getenv("MINGW32_PREFIX")
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if (os.getenv("MINGW64_PREFIX")):
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mingw64 = os.getenv("MINGW64_PREFIX")
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test = "gcc --version > /dev/null 2>&1"
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if (os.system(mingw64 + test) == 0 or os.system(mingw32 + test) == 0):
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return True
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return False
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def get_opts():
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from SCons.Variables import BoolVariable, EnumVariable
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mingw32 = ""
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mingw64 = ""
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if (os.name == "posix"):
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mingw32 = "i686-w64-mingw32-"
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mingw64 = "x86_64-w64-mingw32-"
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if (os.getenv("MINGW32_PREFIX")):
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mingw32 = os.getenv("MINGW32_PREFIX")
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if (os.getenv("MINGW64_PREFIX")):
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mingw64 = os.getenv("MINGW64_PREFIX")
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return [
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('mingw_prefix_32', 'MinGW prefix (Win32)', mingw32),
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('mingw_prefix_64', 'MinGW prefix (Win64)', mingw64),
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# Targeted Windows version: 7 (and later), minimum supported version
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# XP support dropped after EOL due to missing API for IPv6 and other issues
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# Vista support dropped after EOL due to GH-10243
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('target_win_version', 'Targeted Windows version, >= 0x0601 (Windows 7)', '0x0601'),
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EnumVariable('debug_symbols', 'Add debugging symbols to release builds', 'yes', ('yes', 'no', 'full')),
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BoolVariable('separate_debug_symbols', 'Create a separate file containing debugging symbols', False),
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('msvc_version', 'MSVC version to use. Ignored if VCINSTALLDIR is set in shell env.', None),
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BoolVariable('use_mingw', 'Use the Mingw compiler, even if MSVC is installed. Only used on Windows.', False),
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]
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def get_flags():
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return [
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]
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def build_res_file(target, source, env):
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if (env["bits"] == "32"):
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cmdbase = env['mingw_prefix_32']
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else:
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cmdbase = env['mingw_prefix_64']
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cmdbase = cmdbase + 'windres --include-dir . '
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import subprocess
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for x in range(len(source)):
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cmd = cmdbase + '-i ' + str(source[x]) + ' -o ' + str(target[x])
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try:
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out = subprocess.Popen(cmd, shell=True, stderr=subprocess.PIPE).communicate()
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if len(out[1]):
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return 1
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except:
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return 1
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return 0
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def setup_msvc_manual(env):
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"""Set up env to use MSVC manually, using VCINSTALLDIR"""
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if (env["bits"] != "default"):
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print("""
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Bits argument is not supported for MSVC compilation. Architecture depends on the Native/Cross Compile Tools Prompt/Developer Console
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(or Visual Studio settings) that is being used to run SCons. As a consequence, bits argument is disabled. Run scons again without bits
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argument (example: scons p=windows) and SCons will attempt to detect what MSVC compiler will be executed and inform you.
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""")
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raise SCons.Errors.UserError("Bits argument should not be used when using VCINSTALLDIR")
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# Force bits arg
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# (Actually msys2 mingw can support 64-bit, we could detect that)
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env["bits"] = "32"
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env["x86_libtheora_opt_vc"] = True
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# find compiler manually
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compiler_version_str = methods.detect_visual_c_compiler_version(env['ENV'])
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print("Found MSVC compiler: " + compiler_version_str)
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# If building for 64bit architecture, disable assembly optimisations for 32 bit builds (theora as of writing)... vc compiler for 64bit can not compile _asm
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if(compiler_version_str == "amd64" or compiler_version_str == "x86_amd64"):
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env["bits"] = "64"
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env["x86_libtheora_opt_vc"] = False
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print("Compiled program architecture will be a 64 bit executable (forcing bits=64).")
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elif (compiler_version_str == "x86" or compiler_version_str == "amd64_x86"):
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print("Compiled program architecture will be a 32 bit executable. (forcing bits=32).")
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else:
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print("Failed to manually detect MSVC compiler architecture version... Defaulting to 32bit executable settings (forcing bits=32). Compilation attempt will continue, but SCons can not detect for what architecture this build is compiled for. You should check your settings/compilation setup, or avoid setting VCINSTALLDIR.")
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def setup_msvc_auto(env):
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"""Set up MSVC using SCons's auto-detection logic"""
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# If MSVC_VERSION is set by SCons, we know MSVC is installed.
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# But we may want a different version or target arch.
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# The env may have already been set up with default MSVC tools, so
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# reset a few things so we can set it up with the tools we want.
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# (Ideally we'd decide on the tool config before configuring any
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# environment, and just set the env up once, but this function runs
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# on an existing env so this is the simplest way.)
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env['MSVC_SETUP_RUN'] = False # Need to set this to re-run the tool
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env['MSVS_VERSION'] = None
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env['MSVC_VERSION'] = None
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env['TARGET_ARCH'] = None
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if env['bits'] != 'default':
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env['TARGET_ARCH'] = {'32': 'x86', '64': 'x86_64'}[env['bits']]
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if env.has_key('msvc_version'):
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env['MSVC_VERSION'] = env['msvc_version']
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env.Tool('msvc')
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env.Tool('mssdk') # we want the MS SDK
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# Note: actual compiler version can be found in env['MSVC_VERSION'], e.g. "14.1" for VS2015
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# Get actual target arch into bits (it may be "default" at this point):
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if env['TARGET_ARCH'] in ('amd64', 'x86_64'):
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env['bits'] = '64'
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else:
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env['bits'] = '32'
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print(" Found MSVC version %s, arch %s, bits=%s" % (env['MSVC_VERSION'], env['TARGET_ARCH'], env['bits']))
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if env['TARGET_ARCH'] in ('amd64', 'x86_64'):
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env["x86_libtheora_opt_vc"] = False
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def setup_mingw(env):
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"""Set up env for use with mingw"""
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# Nothing to do here
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print("Using Mingw")
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pass
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def configure_msvc(env, manual_msvc_config):
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"""Configure env to work with MSVC"""
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# Build type
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if (env["target"] == "release"):
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if (env["optimize"] == "speed"): #optimize for speed (default)
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env.Append(CCFLAGS=['/O2'])
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else: # optimize for size
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env.Append(CCFLAGS=['/O1'])
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env.Append(LINKFLAGS=['/SUBSYSTEM:WINDOWS'])
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env.Append(LINKFLAGS=['/ENTRY:mainCRTStartup'])
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env.Append(LINKFLAGS=['/OPT:REF'])
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elif (env["target"] == "release_debug"):
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if (env["optimize"] == "speed"): #optimize for speed (default)
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env.Append(CCFLAGS=['/O2'])
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else: # optimize for size
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env.Append(CCFLAGS=['/O1'])
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env.AppendUnique(CPPDEFINES = ['DEBUG_ENABLED'])
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env.Append(LINKFLAGS=['/SUBSYSTEM:CONSOLE'])
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env.Append(LINKFLAGS=['/OPT:REF'])
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elif (env["target"] == "debug"):
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env.AppendUnique(CCFLAGS=['/Z7', '/Od', '/EHsc'])
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env.AppendUnique(CPPDEFINES = ['DEBUG_ENABLED', 'DEBUG_MEMORY_ENABLED',
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'D3D_DEBUG_INFO'])
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env.Append(LINKFLAGS=['/SUBSYSTEM:CONSOLE'])
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env.Append(LINKFLAGS=['/DEBUG'])
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if (env["debug_symbols"] == "full" or env["debug_symbols"] == "yes"):
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env.AppendUnique(CCFLAGS=['/Z7'])
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env.AppendUnique(LINKFLAGS=['/DEBUG'])
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## Compile/link flags
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env.AppendUnique(CCFLAGS=['/MT', '/Gd', '/GR', '/nologo'])
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if int(env['MSVC_VERSION'].split('.')[0]) >= 14: #vs2015 and later
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env.AppendUnique(CCFLAGS=['/utf-8'])
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env.AppendUnique(CXXFLAGS=['/TP']) # assume all sources are C++
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if manual_msvc_config: # should be automatic if SCons found it
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if os.getenv("WindowsSdkDir") is not None:
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env.Append(CPPPATH=[os.getenv("WindowsSdkDir") + "/Include"])
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else:
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print("Missing environment variable: WindowsSdkDir")
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env.AppendUnique(CPPDEFINES = ['WINDOWS_ENABLED', 'OPENGL_ENABLED',
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'WASAPI_ENABLED', 'WINMIDI_ENABLED',
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'TYPED_METHOD_BIND',
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'WIN32', 'MSVC',
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'WINVER=%s' % env["target_win_version"],
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'_WIN32_WINNT=%s' % env["target_win_version"]])
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env.AppendUnique(CPPDEFINES=['NOMINMAX']) # disable bogus min/max WinDef.h macros
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if env["bits"] == "64":
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env.AppendUnique(CPPDEFINES=['_WIN64'])
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## Libs
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LIBS = ['winmm', 'opengl32', 'dsound', 'kernel32', 'ole32', 'oleaut32',
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'user32', 'gdi32', 'IPHLPAPI', 'Shlwapi', 'wsock32', 'Ws2_32',
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'shell32', 'advapi32', 'dinput8', 'dxguid', 'imm32', 'bcrypt','Avrt']
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env.Append(LINKFLAGS=[p + env["LIBSUFFIX"] for p in LIBS])
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if manual_msvc_config:
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if os.getenv("WindowsSdkDir") is not None:
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env.Append(LIBPATH=[os.getenv("WindowsSdkDir") + "/Lib"])
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else:
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print("Missing environment variable: WindowsSdkDir")
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## LTO
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if (env["use_lto"]):
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env.AppendUnique(CCFLAGS=['/GL'])
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env.AppendUnique(ARFLAGS=['/LTCG'])
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if env["progress"]:
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env.AppendUnique(LINKFLAGS=['/LTCG:STATUS'])
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else:
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env.AppendUnique(LINKFLAGS=['/LTCG'])
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if manual_msvc_config:
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env.Append(CPPPATH=[p for p in os.getenv("INCLUDE").split(";")])
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env.Append(LIBPATH=[p for p in os.getenv("LIB").split(";")])
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# Incremental linking fix
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env['BUILDERS']['ProgramOriginal'] = env['BUILDERS']['Program']
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env['BUILDERS']['Program'] = methods.precious_program
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def configure_mingw(env):
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# Workaround for MinGW. See:
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# http://www.scons.org/wiki/LongCmdLinesOnWin32
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env.use_windows_spawn_fix()
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## Build type
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if (env["target"] == "release"):
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env.Append(CCFLAGS=['-msse2'])
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if (env["optimize"] == "speed"): #optimize for speed (default)
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if (env["bits"] == "64"):
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env.Append(CCFLAGS=['-O3'])
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else:
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env.Append(CCFLAGS=['-O2'])
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else: #optimize for size
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env.Prepend(CCFLAGS=['-Os'])
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env.Append(LINKFLAGS=['-Wl,--subsystem,windows'])
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if (env["debug_symbols"] == "yes"):
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env.Prepend(CCFLAGS=['-g1'])
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if (env["debug_symbols"] == "full"):
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env.Prepend(CCFLAGS=['-g2'])
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elif (env["target"] == "release_debug"):
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env.Append(CCFLAGS=['-O2'])
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env.Append(CPPFLAGS=['-DDEBUG_ENABLED'])
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if (env["debug_symbols"] == "yes"):
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env.Prepend(CCFLAGS=['-g1'])
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if (env["debug_symbols"] == "full"):
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env.Prepend(CCFLAGS=['-g2'])
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if (env["optimize"] == "speed"): #optimize for speed (default)
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env.Append(CCFLAGS=['-O2'])
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else: #optimize for size
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env.Prepend(CCFLAGS=['-Os'])
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elif (env["target"] == "debug"):
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env.Append(CCFLAGS=['-g3'])
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env.Append(CPPFLAGS=['-DDEBUG_ENABLED', '-DDEBUG_MEMORY_ENABLED'])
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## Compiler configuration
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if (os.name == "nt"):
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env['ENV']['TMP'] = os.environ['TMP'] # way to go scons, you can be so stupid sometimes
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else:
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env["PROGSUFFIX"] = env["PROGSUFFIX"] + ".exe" # for linux cross-compilation
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if (env["bits"] == "default"):
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if (os.name == "nt"):
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env["bits"] = "64" if "PROGRAMFILES(X86)" in os.environ else "32"
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else: # default to 64-bit on Linux
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env["bits"] = "64"
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mingw_prefix = ""
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if (env["bits"] == "32"):
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env.Append(LINKFLAGS=['-static'])
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env.Append(LINKFLAGS=['-static-libgcc'])
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env.Append(LINKFLAGS=['-static-libstdc++'])
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mingw_prefix = env["mingw_prefix_32"]
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else:
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env.Append(LINKFLAGS=['-static'])
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mingw_prefix = env["mingw_prefix_64"]
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env["CC"] = mingw_prefix + "gcc"
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env['AS'] = mingw_prefix + "as"
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env['CXX'] = mingw_prefix + "g++"
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env['AR'] = mingw_prefix + "gcc-ar"
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env['RANLIB'] = mingw_prefix + "gcc-ranlib"
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env['LINK'] = mingw_prefix + "g++"
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env["x86_libtheora_opt_gcc"] = True
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if env['use_lto']:
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env.Append(CCFLAGS=['-flto'])
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env.Append(LINKFLAGS=['-flto=' + str(env.GetOption("num_jobs"))])
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## Compile flags
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env.Append(CCFLAGS=['-mwindows'])
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env.Append(CPPFLAGS=['-DWINDOWS_ENABLED'])
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env.Append(CPPFLAGS=['-DOPENGL_ENABLED'])
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env.Append(CPPFLAGS=['-DWASAPI_ENABLED'])
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env.Append(CPPFLAGS=['-DWINMIDI_ENABLED'])
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env.Append(CPPFLAGS=['-DWINVER=%s' % env['target_win_version'], '-D_WIN32_WINNT=%s' % env['target_win_version']])
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env.Append(LIBS=['mingw32', 'opengl32', 'dsound', 'ole32', 'd3d9', 'winmm', 'gdi32', 'iphlpapi', 'shlwapi', 'wsock32', 'ws2_32', 'kernel32', 'oleaut32', 'dinput8', 'dxguid', 'ksuser', 'imm32', 'bcrypt', 'avrt', 'uuid'])
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env.Append(CPPFLAGS=['-DMINGW_ENABLED'])
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# resrc
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env.Append(BUILDERS={'RES': env.Builder(action=build_res_file, suffix='.o', src_suffix='.rc')})
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def configure(env):
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# At this point the env has been set up with basic tools/compilers.
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env.Append(CPPPATH=['#platform/windows'])
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print("Configuring for Windows: target=%s, bits=%s" % (env['target'], env['bits']))
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if (os.name == "nt"):
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env['ENV'] = os.environ # this makes build less repeatable, but simplifies some things
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env['ENV']['TMP'] = os.environ['TMP']
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# First figure out which compiler, version, and target arch we're using
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if os.getenv("VCINSTALLDIR") and not env["use_mingw"]:
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# Manual setup of MSVC
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setup_msvc_manual(env)
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env.msvc = True
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manual_msvc_config = True
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elif env.get('MSVC_VERSION', '') and not env["use_mingw"]:
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setup_msvc_auto(env)
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env.msvc = True
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manual_msvc_config = False
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else:
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setup_mingw(env)
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env.msvc = False
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# Now set compiler/linker flags
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if env.msvc:
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configure_msvc(env, manual_msvc_config)
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else: # MinGW
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configure_mingw(env)
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