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 EnumVariable return [ ('use_llvm', 'Use the LLVM compiler', 'no'), ('use_static_cpp', 'Link stdc++ statically', 'no'), ('use_sanitizer', 'Use LLVM compiler address sanitizer', 'no'), ('use_leak_sanitizer', 'Use LLVM compiler memory leaks sanitizer (implies use_sanitizer)', 'no'), ('use_lto', 'Use link time optimization', 'no'), ('pulseaudio', 'Detect & use pulseaudio', 'yes'), ('udev', 'Use udev for gamepad connection callbacks', 'no'), 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 (env["use_llvm"] == "yes"): 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"] == "yes" or env["use_leak_sanitizer"] == "yes"): env.Append(CCFLAGS=['-fsanitize=address', '-fno-omit-frame-pointer']) env.Append(LINKFLAGS=['-fsanitize=address']) env.extra_suffix += "s" if (env["use_leak_sanitizer"] == "yes"): env.Append(CCFLAGS=['-fsanitize=leak']) env.Append(LINKFLAGS=['-fsanitize=leak']) if (env["use_lto"] == "yes"): env.Append(CCFLAGS=['-flto']) env.Append(LINKFLAGS=['-flto']) if (env["use_llvm"] == "no"): 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"] == "yes"): 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"] == "yes"): 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']) ## 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"] == "yes"): env.Append(LINKFLAGS=['-static-libstdc++'])