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SConstruct
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SConstruct
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#!python
import os
import fnmatch
opts = Variables([], ARGUMENTS)
# Gets the standard flags CC, CCX, etc.
env = DefaultEnvironment()
# use with scons -Q compiledb
env.Tool("compilation_db")
env.Alias("compiledb", env.CompilationDatabase())
# Define our options
opts.Add(EnumVariable('target', "Compilation target", 'debug', ['d', 'debug', 'r', 'release']))
opts.Add(EnumVariable('platform', "Compilation platform", '', ['', 'windows', 'x11', 'linux', 'osx', 'javascript']))
opts.Add(EnumVariable('p', "Compilation target, alias for 'platform'", '', ['', 'windows', 'x11', 'linux', 'osx']))
opts.Add(BoolVariable('use_llvm', "Use the LLVM / Clang compiler", 'no'))
opts.Add(PathVariable('target_path', 'The path where the lib is installed.', 'glome_projection/bin/'))
opts.Add(PathVariable('target_name', 'The library name.', 'libglome_projection', PathVariable.PathAccept))
# Local dependency paths, adapt them to your setup
godot_headers_path = "godot-cpp/godot-headers/"
cpp_bindings_path = "godot-cpp/"
cpp_library = "libgodot-cpp"
glm_include_path = "./vendor/glm"
# only support 64 at this time..
bits = 64
# Updates the environment with the option variables.
opts.Update(env)
# Process some arguments
if env['use_llvm']:
env['CC'] = 'clang'
env['CXX'] = 'clang++'
if env['p'] != '':
env['platform'] = env['p']
if env['platform'] == '':
print("No valid target platform selected.")
quit();
# For the reference:
# - CCFLAGS are compilation flags shared between C and C++
# - CFLAGS are for C-specific compilation flags
# - CXXFLAGS are for C++-specific compilation flags
# - CPPFLAGS are for pre-processor flags
# - CPPDEFINES are for pre-processor defines
# - LINKFLAGS are for linking flags
# Check our platform specifics
if env['platform'] == "osx":
env['target_path'] += 'osx/'
cpp_library += '.osx'
env.Append(CCFLAGS=['-arch', 'x86_64'])
env.Append(CXXFLAGS=['-std=c++17'])
env.Append(LINKFLAGS=['-arch', 'x86_64'])
if env['target'] in ('debug', 'd'):
env.Append(CCFLAGS=['-g', '-O2'])
else:
env.Append(CCFLAGS=['-g', '-O3'])
elif env['platform'] in ('x11', 'linux'):
env['target_path'] += 'x11/'
cpp_library += '.linux'
env.Append(CCFLAGS=['-fPIC'])
env.Append(CXXFLAGS=['-std=c++17'])
if env['target'] in ('debug', 'd'):
env.Append(CCFLAGS=['-g3', '-Og'])
else:
env.Append(CCFLAGS=['-g', '-O3'])
elif env["platform"] == "javascript":
env["RANLIB"] = "emranlib"
env.Append(CPPFLAGS=["-s", "SIDE_MODULE=1"])
env.Append(LINKFLAGS=["-s", "SIDE_MODULE=1"])
env["SHOBJSUFFIX"] = ".bc"
env["SHLIBSUFFIX"] = ".wasm"
# Use TempFileMunge since some AR invocations are too long for cmd.exe.
# Use POSIX-style paths, required with TempFileMunge.
env["ARCOM_POSIX"] = env["ARCOM"].replace("$TARGET", "$TARGET.posix").replace("$SOURCES", "$SOURCES.posix")
env["ARCOM"] = "${TEMPFILE(ARCOM_POSIX)}"
# All intermediate files are just LLVM bitcode.
env["OBJPREFIX"] = ""
env["OBJSUFFIX"] = ".bc"
env["PROGPREFIX"] = ""
# Program() output consists of multiple files, so specify suffixes manually at builder.
env["PROGSUFFIX"] = ""
env["LIBPREFIX"] = "lib"
env["LIBSUFFIX"] = ".a"
env["LIBPREFIXES"] = ["$LIBPREFIX"]
env["LIBSUFFIXES"] = ["$LIBSUFFIX"]
env.Replace(SHLINKFLAGS="$LINKFLAGS")
env.Replace(SHLINKFLAGS="$LINKFLAGS")
env["ENV"] = os.environ
env["CC"] = "emcc"
env["CXX"] = "em++"
env["AR"] = "emar"
env['target_path'] += 'javascript/'
cpp_library += '.javascript'
env.Append(CCFLAGS=['-fPIC'])
env.Append(CXXFLAGS=['-std=c++17'])
if env['target'] in ('debug', 'd'):
env.Append(CCFLAGS=['-g3', '-Og'])
else:
env.Append(CCFLAGS=['-g', '-O3'])
elif env['platform'] == "windows":
env['target_path'] += 'win64/'
cpp_library += '.windows'
# This makes sure to keep the session environment variables on windows,
# that way you can run scons in a vs 2017 prompt and it will find all the required tools
env.Append(ENV=os.environ)
env.Append(CPPDEFINES=['WIN32', '_WIN32', '_WINDOWS', '_CRT_SECURE_NO_WARNINGS'])
env.Append(CCFLAGS=['-W3', '-GR'])
env.Append(CXXFLAGS='/std:c++17')
if env['target'] in ('debug', 'd'):
env.Append(CPPDEFINES=['_DEBUG'])
env.Append(CCFLAGS=['-EHsc', '-MDd', '-ZI'])
env.Append(LINKFLAGS=['-DEBUG'])
else:
env.Append(CPPDEFINES=['NDEBUG'])
env.Append(CCFLAGS=['-O2', '-EHsc', '-MD'])
if env['target'] in ('debug', 'd'):
cpp_library += '.debug'
else:
cpp_library += '.release'
if env["platform"] == "javascript":
cpp_library += '.wasm'
else:
cpp_library += '.' + str(bits)
# make sure our binding library is properly includes
env.Append(CPPPATH=['.', godot_headers_path, cpp_bindings_path + 'include/', cpp_bindings_path + 'include/core/', cpp_bindings_path + 'include/gen/', glm_include_path])
env.Append(LIBPATH=[cpp_bindings_path + 'bin/'])
env.Append(LIBS=[cpp_library])
# tweak this if you want to use different folders, or more folders, to store your source code in.
env.Append(CPPPATH=['src/'])
sources = Glob('src/*.cpp')
sources.extend(Glob('src/*/*.cpp'))
library = env.SharedLibrary(target=env['target_path'] + env['target_name'] , source=sources)
Default(library)
# Generates help for the -h scons option.
Help(opts.GenerateHelpText(env))