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108 lines
3.2 KiB
Python
108 lines
3.2 KiB
Python
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""" SConstruct file fore building Kvazaar with Scons.
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This file defines two targets, x86 and x64, and builds construction
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environments for both.
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TODO:
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- add debug builds
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- whole program optimization for gcc
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"""
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import os
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import platform
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Help("""
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Type: 'scons x86' to build a 32-bit release version,
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'scons x64' to build a 64-bit release version.
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'scons x86 x64 -c' to clear all build directories.
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""")
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# Create construction environments for 32 and 64 bit builds.
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# Visual studio needs the architecture to be set in this stage. It can not be
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# modified later.
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env_x86 = Environment(
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ASCOM='yasm $ASFLAGS -o $TARGET $SOURCES',
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ENV={'PATH': os.environ['PATH']}, # to find yasm on Windows
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TARGET_ARCH='x86', # for Visual Studio
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)
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env_x64 = Environment(
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ASCOM='yasm $ASFLAGS -o $TARGET $SOURCES',
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ENV={'PATH': os.environ['PATH']}, # to find yasm on Windows
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TARGET_ARCH='amd64', # for Visual Studio
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)
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# YASM flags for different architectures. The object file format and name
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# mangling must be the same as used by the C compiler for that OS.
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# Indexed by platform.system().
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yasm_flags = {
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'Windows': {
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'x86': '-f win32 -DPREFIX ',
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'x64': '-f win64'},
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'Darwin': {
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'x86': '-f macho32 -DPREFIX',
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'x64': '-f macho64 -DPREFIX'},
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'Linux': { # Flags for Unix-like.
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'x86': '-f elf32',
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'x64': '-f elf64'},
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'all': { # Falgs for all systems.
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'x86': ' -DARCH_X86_64=0 -m x86',
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'x64': ' -DARCH_X86_64=1 -m amd64'},
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}
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# Set yasm flags for OS and architecture.
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target_yasm_flags = yasm_flags.get(platform.system(), yasm_flags['Linux'])
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env_x86.Replace(ASFLAGS=target_yasm_flags['x86'])
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env_x64.Replace(ASFLAGS=target_yasm_flags['x64'])
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env_x86.Append(ASFLAGS=yasm_flags['all']['x86'])
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env_x64.Append(ASFLAGS=yasm_flags['all']['x64'])
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# Try and deal with all the remaining compiler specific differences that I
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# really with scons would handle.
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if 'MSVS' in env_x86:
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# /MD = multithreaded DLL runtime
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# /Ox = full optimization, sets /Ob2, /Og, /Oi, /Ot, /Oy
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# /GL = enable whole program optimization
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# /LTCG = link time code generation
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# /arch:SSE2 = use SSE2 (x86 only)
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env_x86.Append(
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CCFLAGS='/MD /Ox /GL /arch:SSE2',
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LINKFLAGS='/LTCG')
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env_x64.Append(
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CCFLAGS='/MD /Ox /GL',
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LINKFLAGS='/LTCG')
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# Linker needs TMP
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env_x86['ENV']['TMP'] = os.environ['TMP']
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env_x64['ENV']['TMP'] = os.environ['TMP']
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# VS version uses winsock2
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# We probably should be linking against the dll or just not using winsock.
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env_x86.MergeFlags('-lws2_32')
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env_x64.MergeFlags('-lws2_32') # ws2_64 isn't found, but 32 works.
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else:
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# GCC flags
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# -m for arch, -O2 for optimization, -lm for math lib
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env_x86.MergeFlags('-m32 -O2 -lm')
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env_x64.MergeFlags('-m64 -O2 -lm')
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# Declare build targets.
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x86 = SConscript('src/SConscript',
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exports={'env': env_x86},
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variant_dir='scons_build_x86',
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duplicate=False)
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Alias('x86', x86)
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x64 = SConscript('src/SConscript',
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exports={'env': env_x64},
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variant_dir='scons_build_x64',
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duplicate=False)
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Alias('x64', x64)
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if platform.machine().endswith('64'):
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Default(x64)
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else:
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Default(x86)
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