mirror of
				https://github.com/godotengine/godot.git
				synced 2025-11-04 07:31:16 +00:00 
			
		
		
		
	This is meant for users making custom builds to match the options used on
optimized, official builds.
This enables, on the platforms which support them:
- `use_static_cpp=yes` (portable binaries for Linux and Windows)
- `use_lto=yes` (link time optimizations - note: requires a lot of RAM!)
- `debug_symbols=no` (no debug symbols, smaller binaries)
Also abort when using MSVC with `production=yes`, as:
- It cannot optimize the GDScript VM like GCC or Clang do, leading to
  significant performance drops.
- Its LTO support is unreliable, at least used to trigger crashes last
  we tried it extensively.
All options can still be overridden if specified, and the `dev=yes` option
was changed to also support overrides.
(cherry picked from commit db26871210)
		
	
			
		
			
				
	
	
		
			244 lines
		
	
	
	
		
			8.2 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			244 lines
		
	
	
	
		
			8.2 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
import os
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import platform
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import sys
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# This file is mostly based on platform/x11/detect.py.
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# If editing this file, make sure to apply relevant changes here too.
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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 "Server"
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def get_program_suffix():
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    if sys.platform == "darwin":
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        return "osx"
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    return "x11"
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def can_build():
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    if os.name != "posix":
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        return False
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    return True
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def get_opts():
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    from SCons.Variables import BoolVariable, EnumVariable
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    return [
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        BoolVariable("use_llvm", "Use the LLVM compiler", False),
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        BoolVariable("use_static_cpp", "Link libgcc and libstdc++ statically for better portability", True),
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        BoolVariable("use_ubsan", "Use LLVM/GCC compiler undefined behavior sanitizer (UBSAN)", False),
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        BoolVariable("use_asan", "Use LLVM/GCC compiler address sanitizer (ASAN))", False),
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        BoolVariable("use_lsan", "Use LLVM/GCC compiler leak sanitizer (LSAN))", False),
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        BoolVariable("use_tsan", "Use LLVM/GCC compiler thread sanitizer (TSAN))", False),
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        BoolVariable("debug_symbols", "Add debugging symbols to release/release_debug builds", True),
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        BoolVariable("separate_debug_symbols", "Create a separate file containing debugging symbols", False),
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        BoolVariable("execinfo", "Use libexecinfo on systems where glibc is not available", False),
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    ]
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def get_flags():
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    return []
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def configure(env):
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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.Prepend(CCFLAGS=["-O3"])
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        else:  # optimize for size
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            env.Prepend(CCFLAGS=["-Os"])
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        if env["debug_symbols"] == "yes":
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            env.Prepend(CCFLAGS=["-g2"])
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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.Prepend(CCFLAGS=["-O2"])
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        else:  # optimize for size
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            env.Prepend(CCFLAGS=["-Os"])
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        env.Prepend(CPPDEFINES=["DEBUG_ENABLED"])
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        if env["debug_symbols"] == "yes":
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            env.Prepend(CCFLAGS=["-g2"])
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    elif env["target"] == "debug":
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        env.Prepend(CCFLAGS=["-g3"])
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        env.Prepend(CPPDEFINES=["DEBUG_ENABLED"])
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        env.Append(LINKFLAGS=["-rdynamic"])
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    ## Architecture
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    is64 = sys.maxsize > 2 ** 32
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    if env["bits"] == "default":
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        env["bits"] = "64" if is64 else "32"
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    ## Compiler configuration
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    if "CXX" in env and "clang" in os.path.basename(env["CXX"]):
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        # Convenience check to enforce the use_llvm overrides when CXX is clang(++)
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        env["use_llvm"] = True
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    if env["use_llvm"]:
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        if "clang++" not in os.path.basename(env["CXX"]):
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            env["CC"] = "clang"
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            env["CXX"] = "clang++"
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        env.extra_suffix = ".llvm" + env.extra_suffix
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    if env["use_ubsan"] or env["use_asan"] or env["use_lsan"] or env["use_tsan"]:
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        env.extra_suffix += "s"
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        if env["use_ubsan"]:
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            env.Append(CCFLAGS=["-fsanitize=undefined"])
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            env.Append(LINKFLAGS=["-fsanitize=undefined"])
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        if env["use_asan"]:
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            env.Append(CCFLAGS=["-fsanitize=address"])
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            env.Append(LINKFLAGS=["-fsanitize=address"])
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        if env["use_lsan"]:
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            env.Append(CCFLAGS=["-fsanitize=leak"])
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            env.Append(LINKFLAGS=["-fsanitize=leak"])
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        if env["use_tsan"]:
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            env.Append(CCFLAGS=["-fsanitize=thread"])
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            env.Append(LINKFLAGS=["-fsanitize=thread"])
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    if env["use_lto"]:
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        env.Append(CCFLAGS=["-flto"])
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        if not env["use_llvm"] and env.GetOption("num_jobs") > 1:
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            env.Append(LINKFLAGS=["-flto=" + str(env.GetOption("num_jobs"))])
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        else:
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            env.Append(LINKFLAGS=["-flto"])
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        if not env["use_llvm"]:
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            env["RANLIB"] = "gcc-ranlib"
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            env["AR"] = "gcc-ar"
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    env.Append(CCFLAGS=["-pipe"])
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    env.Append(LINKFLAGS=["-pipe"])
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    ## Dependencies
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    # FIXME: Check for existence of the libs before parsing their flags with pkg-config
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    # freetype depends on libpng and zlib, so bundling one of them while keeping others
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    # as shared libraries leads to weird issues
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    if env["builtin_freetype"] or env["builtin_libpng"] or env["builtin_zlib"]:
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        env["builtin_freetype"] = True
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        env["builtin_libpng"] = True
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        env["builtin_zlib"] = True
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    if not env["builtin_freetype"]:
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        env.ParseConfig("pkg-config freetype2 --cflags --libs")
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    if not env["builtin_libpng"]:
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        env.ParseConfig("pkg-config libpng16 --cflags --libs")
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    if not env["builtin_bullet"]:
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        # We need at least version 2.89
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        import subprocess
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        bullet_version = subprocess.check_output(["pkg-config", "bullet", "--modversion"]).strip()
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        if str(bullet_version) < "2.89":
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            # Abort as system bullet was requested but too old
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            print(
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                "Bullet: System version {0} does not match minimal requirements ({1}). Aborting.".format(
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                    bullet_version, "2.89"
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                )
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            )
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            sys.exit(255)
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        env.ParseConfig("pkg-config bullet --cflags --libs")
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    if False:  # not env['builtin_assimp']:
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        # FIXME: Add min version check
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        env.ParseConfig("pkg-config assimp --cflags --libs")
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    if not env["builtin_enet"]:
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        env.ParseConfig("pkg-config libenet --cflags --libs")
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    if not env["builtin_squish"]:
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        env.ParseConfig("pkg-config libsquish --cflags --libs")
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    if not env["builtin_zstd"]:
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        env.ParseConfig("pkg-config libzstd --cflags --libs")
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    # Sound and video libraries
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    # Keep the order as it triggers chained dependencies (ogg needed by others, etc.)
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    if not env["builtin_libtheora"]:
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        env["builtin_libogg"] = False  # Needed to link against system libtheora
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        env["builtin_libvorbis"] = False  # Needed to link against system libtheora
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        env.ParseConfig("pkg-config theora theoradec --cflags --libs")
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    else:
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        list_of_x86 = ["x86_64", "x86", "i386", "i586"]
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        if any(platform.machine() in s for s in list_of_x86):
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            env["x86_libtheora_opt_gcc"] = True
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    if not env["builtin_libvpx"]:
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        env.ParseConfig("pkg-config vpx --cflags --libs")
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    if not env["builtin_libvorbis"]:
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        env["builtin_libogg"] = False  # Needed to link against system libvorbis
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        env.ParseConfig("pkg-config vorbis vorbisfile --cflags --libs")
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    if not env["builtin_opus"]:
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        env["builtin_libogg"] = False  # Needed to link against system opus
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        env.ParseConfig("pkg-config opus opusfile --cflags --libs")
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    if not env["builtin_libogg"]:
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        env.ParseConfig("pkg-config ogg --cflags --libs")
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    if not env["builtin_libwebp"]:
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        env.ParseConfig("pkg-config libwebp --cflags --libs")
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    if not env["builtin_mbedtls"]:
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        # mbedTLS does not provide a pkgconfig config yet. See https://github.com/ARMmbed/mbedtls/issues/228
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        env.Append(LIBS=["mbedtls", "mbedcrypto", "mbedx509"])
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    if not env["builtin_wslay"]:
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        env.ParseConfig("pkg-config libwslay --cflags --libs")
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    if not env["builtin_miniupnpc"]:
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        # No pkgconfig file so far, hardcode default paths.
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        env.Prepend(CPPPATH=["/usr/include/miniupnpc"])
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        env.Append(LIBS=["miniupnpc"])
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    # On Linux wchar_t should be 32-bits
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    # 16-bit library shouldn't be required due to compiler optimisations
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    if not env["builtin_pcre2"]:
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        env.ParseConfig("pkg-config libpcre2-32 --cflags --libs")
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    ## Flags
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    # Linkflags below this line should typically stay the last ones
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    if not env["builtin_zlib"]:
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        env.ParseConfig("pkg-config zlib --cflags --libs")
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    env.Prepend(CPPPATH=["#platform/server"])
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    env.Append(CPPDEFINES=["SERVER_ENABLED", "UNIX_ENABLED"])
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    if platform.system() == "Darwin":
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        env.Append(LINKFLAGS=["-framework", "Cocoa", "-framework", "Carbon", "-lz", "-framework", "IOKit"])
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    env.Append(LIBS=["pthread"])
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    if platform.system() == "Linux":
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        env.Append(LIBS=["dl"])
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    if platform.system().find("BSD") >= 0:
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        env["execinfo"] = True
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    if env["execinfo"]:
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        env.Append(LIBS=["execinfo"])
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    # Link those statically for portability
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    if env["use_static_cpp"]:
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        env.Append(LINKFLAGS=["-static-libgcc", "-static-libstdc++"])
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