godot/platform/x11/detect.py
Rémi Verschelde 1769cbc0e2 SCons: Default to builtin libpng/freetype on Linux
The rationale for keeping those shared by default is that they're typical
dependencies found on any Linux system, and it saves compilation time and
binary size to link their dynamically.

But since official builds default to all-builtin, and Debian/Ubuntu still
don't have libpng16 (which we now require) readily available on all their
supported releases, it's simpler to bundle all the things.

This does not change the fact that those dependencies *can* be unbundled
on Linux, it's only the default option changing.
2019-06-23 10:02:35 +02:00

340 lines
12 KiB
Python

import os
import platform
import sys
from methods import get_compiler_version, using_gcc, using_clang
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):
return False
x11_error = os.system("pkg-config x11 --modversion > /dev/null ")
if (x11_error):
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
x11_error = os.system("pkg-config xrender --modversion > /dev/null ")
if (x11_error):
print("xrender not found.. x11 disabled.")
return False
x11_error = os.system("pkg-config xi --modversion > /dev/null ")
if (x11_error):
print("xi not found.. Aborting.")
return False
return True
def get_opts():
from SCons.Variables import BoolVariable, EnumVariable
return [
BoolVariable('use_llvm', 'Use the LLVM compiler', False),
BoolVariable('use_lld', 'Use the LLD linker', False),
BoolVariable('use_thinlto', 'Use ThinLTO', False),
BoolVariable('use_static_cpp', 'Link libgcc and libstdc++ statically for better portability', False),
BoolVariable('use_ubsan', 'Use LLVM/GCC compiler undefined behavior sanitizer (UBSAN)', False),
BoolVariable('use_asan', 'Use LLVM/GCC compiler address sanitizer (ASAN))', False),
BoolVariable('use_lsan', 'Use LLVM/GCC compiler leak sanitizer (LSAN))', False),
BoolVariable('pulseaudio', 'Detect and use PulseAudio', True),
BoolVariable('udev', 'Use udev for gamepad connection callbacks', False),
EnumVariable('debug_symbols', 'Add debugging symbols to release builds', 'yes', ('yes', 'no', 'full')),
BoolVariable('separate_debug_symbols', 'Create a separate file containing debugging symbols', False),
BoolVariable('touch', 'Enable touch events', True),
BoolVariable('execinfo', 'Use libexecinfo on systems where glibc is not available', False),
]
def get_flags():
return []
def configure(env):
## Build type
if (env["target"] == "release"):
if (env["optimize"] == "speed"): #optimize for speed (default)
env.Prepend(CCFLAGS=['-O3'])
else: #optimize for size
env.Prepend(CCFLAGS=['-Os'])
if (env["debug_symbols"] == "yes"):
env.Prepend(CCFLAGS=['-g1'])
if (env["debug_symbols"] == "full"):
env.Prepend(CCFLAGS=['-g2'])
elif (env["target"] == "release_debug"):
if (env["optimize"] == "speed"): #optimize for speed (default)
env.Prepend(CCFLAGS=['-O2'])
else: #optimize for size
env.Prepend(CCFLAGS=['-Os'])
env.Prepend(CPPFLAGS=['-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'])
env.Prepend(CPPFLAGS=['-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 os.path.basename(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 os.path.basename(env['CXX'])):
env["CC"] = "clang"
env["CXX"] = "clang++"
env["LINK"] = "clang++"
env.Append(CPPFLAGS=['-DTYPED_METHOD_BIND'])
env.extra_suffix = ".llvm" + env.extra_suffix
if env['use_lld']:
if env['use_llvm']:
env.Append(LINKFLAGS=['-fuse-ld=lld'])
if env['use_thinlto']:
# A convenience so you don't need to write use_lto too when using SCons
env['use_lto'] = True
else:
print("Using LLD with GCC is not supported yet, try compiling with 'use_llvm=yes'.")
sys.exit(255)
if env['use_ubsan'] or env['use_asan'] or env['use_lsan']:
env.extra_suffix += "s"
if env['use_ubsan']:
env.Append(CCFLAGS=['-fsanitize=undefined'])
env.Append(LINKFLAGS=['-fsanitize=undefined'])
if env['use_asan']:
env.Append(CCFLAGS=['-fsanitize=address'])
env.Append(LINKFLAGS=['-fsanitize=address'])
if env['use_lsan']:
env.Append(CCFLAGS=['-fsanitize=leak'])
env.Append(LINKFLAGS=['-fsanitize=leak'])
if env['use_lto']:
if not env['use_llvm'] and env.GetOption("num_jobs") > 1:
env.Append(CCFLAGS=['-flto'])
env.Append(LINKFLAGS=['-flto=' + str(env.GetOption("num_jobs"))])
else:
if env['use_lld'] and env['use_thinlto']:
env.Append(CCFLAGS=['-flto=thin'])
env.Append(LINKFLAGS=['-flto=thin'])
else:
env.Append(CCFLAGS=['-flto'])
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'])
# Check for gcc version >= 6 before adding -no-pie
if using_gcc(env):
version = get_compiler_version(env)
if version != None and version[0] >= '6':
env.Append(CCFLAGS=['-fpie'])
env.Append(LINKFLAGS=['-no-pie'])
# Do the same for clang should be fine with Clang 4 and higher
if using_clang(env):
version = get_compiler_version(env)
if version != None and version[0] >= '4':
env.Append(CCFLAGS=['-fpie'])
env.Append(LINKFLAGS=['-no-pie'])
## 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')
env.ParseConfig('pkg-config xrender --cflags --libs')
env.ParseConfig('pkg-config xi --cflags --libs')
if (env['touch']):
env.Append(CPPFLAGS=['-DTOUCH_ENABLED'])
# FIXME: Check for existence of the libs before parsing their flags with pkg-config
# 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 libpng16 --cflags --libs')
if not env['builtin_bullet']:
# We need at least version 2.89
import subprocess
bullet_version = subprocess.check_output(['pkg-config', 'bullet', '--modversion']).strip()
if str(bullet_version) < "2.89":
# Abort as system bullet was requested but too old
print("Bullet: System version {0} does not match minimal requirements ({1}). Aborting.".format(bullet_version, "2.89"))
sys.exit(255)
env.ParseConfig('pkg-config bullet --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')
else:
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
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 not env['builtin_libwebp']:
env.ParseConfig('pkg-config libwebp --cflags --libs')
if not env['builtin_mbedtls']:
# mbedTLS does not provide a pkgconfig config yet. See https://github.com/ARMmbed/mbedtls/issues/228
env.Append(LIBS=['mbedtls', 'mbedcrypto', 'mbedx509'])
if not env['builtin_libwebsockets']:
env.ParseConfig('pkg-config libwebsockets --cflags --libs')
if not env['builtin_miniupnpc']:
# No pkgconfig file so far, hardcode default paths.
env.Prepend(CPPPATH=["/usr/include/miniupnpc"])
env.Append(LIBS=["miniupnpc"])
# 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", "-DALSAMIDI_ENABLED"])
# Don't parse --cflags, we don't need to add /usr/include/alsa to include path
env.ParseConfig('pkg-config alsa --libs')
else:
print("ALSA libraries not found, disabling driver")
if env['pulseaudio']:
if (os.system("pkg-config --exists libpulse") == 0): # 0 means found
print("Enabling PulseAudio")
env.Append(CPPFLAGS=["-DPULSEAUDIO_ENABLED"])
env.ParseConfig('pkg-config --cflags --libs libpulse')
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.Prepend(CPPPATH=['#platform/x11'])
env.Append(CPPFLAGS=['-DX11_ENABLED', '-DUNIX_ENABLED', '-DOPENGL_ENABLED', '-DGLES_ENABLED'])
env.Append(LIBS=['GL', 'pthread'])
if (platform.system() == "Linux"):
env.Append(LIBS=['dl'])
if (platform.system().find("BSD") >= 0):
env["execinfo"] = True
if env["execinfo"]:
env.Append(LIBS=['execinfo'])
## Cross-compilation
if (is64 and env["bits"] == "32"):
env.Append(CCFLAGS=['-m32'])
env.Append(LINKFLAGS=['-m32', '-L/usr/lib/i386-linux-gnu'])
elif (not is64 and env["bits"] == "64"):
env.Append(CCFLAGS=['-m64'])
env.Append(LINKFLAGS=['-m64', '-L/usr/lib/i686-linux-gnu'])
# Link those statically for portability
if env['use_static_cpp']:
env.Append(LINKFLAGS=['-static-libgcc', '-static-libstdc++'])