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import os
import platform
import sys
def is_active():
return True
def get_name():
return "X11"
def can_build():
if (os.name != "posix" or sys.platform == "darwin"):
return False
# Check the minimal dependencies
x11_error = os.system("pkg-config --version > /dev/null")
if (x11_error):
print("pkg-config not found.. x11 disabled.")
return False
x11_error = os.system("pkg-config x11 --modversion > /dev/null ")
if (x11_error):
print("X11 not found.. x11 disabled.")
return False
x11_error = os.system("pkg-config xcursor --modversion > /dev/null ")
if (x11_error):
print("xcursor not found.. x11 disabled.")
return False
x11_error = os.system("pkg-config xinerama --modversion > /dev/null ")
if (x11_error):
print("xinerama not found.. x11 disabled.")
return False
x11_error = os.system("pkg-config xrandr --modversion > /dev/null ")
if (x11_error):
print("xrandr not found.. x11 disabled.")
return False
return True
def get_opts():
from SCons.Variables import BoolVariable, EnumVariable
return [
BoolVariable('use_llvm', 'Use the LLVM compiler', False),
BoolVariable('use_static_cpp', 'Link stdc++ statically', False),
BoolVariable('use_sanitizer', 'Use LLVM compiler address sanitizer', False),
BoolVariable('use_leak_sanitizer', 'Use LLVM compiler memory leaks sanitizer (implies use_sanitizer)', False),
BoolVariable('use_lto', 'Use link time optimization', False),
BoolVariable('pulseaudio', 'Detect & use pulseaudio', True),
BoolVariable('udev', 'Use udev for gamepad connection callbacks', False),
EnumVariable('debug_symbols', 'Add debug symbols to release version', 'yes', ('yes', 'no', 'full')),
]
def get_flags():
return [
('builtin_freetype', False),
('builtin_libpng', False),
('builtin_openssl', False),
('builtin_zlib', False),
]
def configure(env):
## Build type
if (env["target"] == "release"):
# -O3 -ffast-math is identical to -Ofast. We need to split it out so we can selectively disable
# -ffast-math in code for which it generates wrong results.
env.Prepend(CCFLAGS=['-O3', '-ffast-math'])
if (env["debug_symbols"] == "yes"):
env.Prepend(CCFLAGS=['-g1'])
if (env["debug_symbols"] == "full"):
env.Prepend(CCFLAGS=['-g2'])
elif (env["target"] == "release_debug"):
env.Prepend(CCFLAGS=['-O2', '-ffast-math', '-DDEBUG_ENABLED'])
if (env["debug_symbols"] == "yes"):
env.Prepend(CCFLAGS=['-g1'])
if (env["debug_symbols"] == "full"):
env.Prepend(CCFLAGS=['-g2'])
elif (env["target"] == "debug"):
env.Prepend(CCFLAGS=['-g3', '-DDEBUG_ENABLED', '-DDEBUG_MEMORY_ENABLED'])
env.Append(LINKFLAGS=['-rdynamic'])
## Architecture
is64 = sys.maxsize > 2**32
if (env["bits"] == "default"):
env["bits"] = "64" if is64 else "32"
## Compiler configuration
if 'CXX' in env and 'clang' in env['CXX']:
# Convenience check to enforce the use_llvm overrides when CXX is clang(++)
env['use_llvm'] = True
if env['use_llvm']:
if ('clang++' not in env['CXX']):
env["CC"] = "clang"
env["CXX"] = "clang++"
env["LD"] = "clang++"
env.Append(CPPFLAGS=['-DTYPED_METHOD_BIND'])
env.extra_suffix = ".llvm" + env.extra_suffix
# leak sanitizer requires (address) sanitizer
if env['use_sanitizer'] or env['use_leak_sanitizer']:
env.Append(CCFLAGS=['-fsanitize=address', '-fno-omit-frame-pointer'])
env.Append(LINKFLAGS=['-fsanitize=address'])
env.extra_suffix += "s"
if env['use_leak_sanitizer']:
env.Append(CCFLAGS=['-fsanitize=leak'])
env.Append(LINKFLAGS=['-fsanitize=leak'])
if env['use_lto']:
env.Append(CCFLAGS=['-flto'])
if not env['use_llvm'] and env.GetOption("num_jobs") > 1:
env.Append(LINKFLAGS=['-flto=' + str(env.GetOption("num_jobs"))])
else:
env.Append(LINKFLAGS=['-flto'])
if not env['use_llvm']:
env['RANLIB'] = 'gcc-ranlib'
env['AR'] = 'gcc-ar'
env.Append(CCFLAGS=['-pipe'])
env.Append(LINKFLAGS=['-pipe'])
## Dependencies
env.ParseConfig('pkg-config x11 --cflags --libs')
env.ParseConfig('pkg-config xcursor --cflags --libs')
env.ParseConfig('pkg-config xinerama --cflags --libs')
env.ParseConfig('pkg-config xrandr --cflags --libs')
# FIXME: Check for existence of the libs before parsing their flags with pkg-config
if not env['builtin_openssl']:
env.ParseConfig('pkg-config openssl --cflags --libs')
if not env['builtin_libwebp']:
env.ParseConfig('pkg-config libwebp --cflags --libs')
# freetype depends on libpng and zlib, so bundling one of them while keeping others
# as shared libraries leads to weird issues
if env['builtin_freetype'] or env['builtin_libpng'] or env['builtin_zlib']:
env['builtin_freetype'] = True
env['builtin_libpng'] = True
env['builtin_zlib'] = True
if not env['builtin_freetype']:
env.ParseConfig('pkg-config freetype2 --cflags --libs')
if not env['builtin_libpng']:
env.ParseConfig('pkg-config libpng --cflags --libs')
if not env['builtin_enet']:
env.ParseConfig('pkg-config libenet --cflags --libs')
if not env['builtin_squish'] and env['tools']:
env.ParseConfig('pkg-config libsquish --cflags --libs')
if not env['builtin_zstd']:
env.ParseConfig('pkg-config libzstd --cflags --libs')
# Sound and video libraries
# Keep the order as it triggers chained dependencies (ogg needed by others, etc.)
if not env['builtin_libtheora']:
env['builtin_libogg'] = False # Needed to link against system libtheora
env['builtin_libvorbis'] = False # Needed to link against system libtheora
env.ParseConfig('pkg-config theora theoradec --cflags --libs')
if not env['builtin_libvpx']:
env.ParseConfig('pkg-config vpx --cflags --libs')
if not env['builtin_libvorbis']:
env['builtin_libogg'] = False # Needed to link against system libvorbis
env.ParseConfig('pkg-config vorbis vorbisfile --cflags --libs')
if not env['builtin_opus']:
env['builtin_libogg'] = False # Needed to link against system opus
env.ParseConfig('pkg-config opus opusfile --cflags --libs')
if not env['builtin_libogg']:
env.ParseConfig('pkg-config ogg --cflags --libs')
if env['builtin_libtheora']:
list_of_x86 = ['x86_64', 'x86', 'i386', 'i586']
if any(platform.machine() in s for s in list_of_x86):
env["x86_libtheora_opt_gcc"] = True
# On Linux wchar_t should be 32-bits
# 16-bit library shouldn't be required due to compiler optimisations
if not env['builtin_pcre2']:
env.ParseConfig('pkg-config libpcre2-32 --cflags --libs')
## Flags
if (os.system("pkg-config --exists alsa") == 0): # 0 means found
print("Enabling ALSA")
env.Append(CPPFLAGS=["-DALSA_ENABLED"])
env.ParseConfig('pkg-config alsa --cflags --libs')
else:
print("ALSA libraries not found, disabling driver")
if env['pulseaudio']:
if (os.system("pkg-config --exists libpulse-simple") == 0): # 0 means found
print("Enabling PulseAudio")
env.Append(CPPFLAGS=["-DPULSEAUDIO_ENABLED"])
env.ParseConfig('pkg-config --cflags --libs libpulse-simple')
else:
print("PulseAudio development libraries not found, disabling driver")
if (platform.system() == "Linux"):
env.Append(CPPFLAGS=["-DJOYDEV_ENABLED"])
if env['udev']:
if (os.system("pkg-config --exists libudev") == 0): # 0 means found
print("Enabling udev support")
env.Append(CPPFLAGS=["-DUDEV_ENABLED"])
env.ParseConfig('pkg-config libudev --cflags --libs')
else:
print("libudev development libraries not found, disabling udev support")
# Linkflags below this line should typically stay the last ones
if not env['builtin_zlib']:
env.ParseConfig('pkg-config zlib --cflags --libs')
env.Append(CPPPATH=['#platform/x11'])
env.Append(CPPFLAGS=['-DX11_ENABLED', '-DUNIX_ENABLED', '-DOPENGL_ENABLED', '-DGLES2_ENABLED', '-DGLES_OVER_GL'])
env.Append(LIBS=['GL', 'pthread'])
if (platform.system() == "Linux"):
env.Append(LIBS=['dl'])
if (platform.system().find("BSD") >= 0):
env.Append(LIBS=['execinfo'])
## Cross-compilation
if (is64 and env["bits"] == "32"):
env.Append(CPPFLAGS=['-m32'])
env.Append(LINKFLAGS=['-m32', '-L/usr/lib/i386-linux-gnu'])
elif (not is64 and env["bits"] == "64"):
env.Append(CPPFLAGS=['-m64'])
env.Append(LINKFLAGS=['-m64', '-L/usr/lib/i686-linux-gnu'])
if env['use_static_cpp']:
env.Append(LINKFLAGS=['-static-libstdc++'])
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