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import os
import platform
import sys
_platform_map = {
'darwin': 'darwin',
'freebsd': 'freebsd',
'linux2': 'linux',
'win32': 'windows',
}
default_platform = _platform_map.get(sys.platform, 'unix')
_machine_map = {
'x86': 'x86',
'i386': 'x86',
'i486': 'x86',
'i586': 'x86',
'i686': 'x86',
'ppc' : 'ppc',
'x86_64': 'x86_64',
}
if 'PROCESSOR_ARCHITECTURE' in os.environ:
default_machine = os.environ['PROCESSOR_ARCHITECTURE']
else:
default_machine = platform.machine()
default_machine = _machine_map.get(default_machine, 'generic')
if default_platform == 'windows':
default_prefix = os.path.join(os.environ.get('ProgramFiles', 'C:\\Program Files'), 'glean')
else:
default_prefix = '/usr/local'
vars = Variables()
vars.Add(BoolVariable('debug', 'debug build', 'yes'))
vars.Add(EnumVariable('platform', 'target platform', default_platform,
allowed_values=('linux', 'freebsd', 'unix', 'other', 'windows', 'darwin')))
vars.Add(EnumVariable('machine', 'use machine-specific assembly code', default_machine,
allowed_values=('generic', 'ppc', 'x86', 'x86_64')))
vars.Add(EnumVariable('toolchain', 'compiler toolchain', 'default',
allowed_values=('default', 'crossmingw')))
vars.Add(PathVariable('prefix', 'installation prefix', default_prefix, PathVariable.PathIsDirCreate))
if platform.machine() == 'win32':
vars.Add(EnumVariable('MSVS_VERSION', 'Microsoft Visual Studio version', None,
allowed_values=('7.1', '8.0', '9.0')))
env = Environment(variables=vars)
Help(vars.GenerateHelpText(env))
Export(['env'])
env.Tool(env['toolchain'], ['../scons'])
env['gcc'] = 'gcc' in os.path.basename(env['CC']).split('-')
env['msvc'] = env['CC'] == 'cl'
# C preprocessor options
cppdefines = []
if not env['debug']:
cppdefines += ['NDEBUG']
if env['platform'] == 'windows':
cppdefines += [
'WIN32',
'_CONSOLE',
'_MBCS',
]
if env['debug']:
cppdefines += ['_DEBUG']
env.Append(CPPDEFINES = cppdefines)
# C compiler options
cflags = [] # C
cxxflags = [] # C++
ccflags = [] # C & C++
if env['gcc']:
if env['debug']:
ccflags += ['-O0', '-g3']
else:
ccflags += ['-O3', '-g0']
if env['machine'] == 'x86':
ccflags += ['-m32']
if env['machine'] == 'x86_64':
ccflags += ['-m64']
# See also:
# - http://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
ccflags += [
'-Wall',
'-Wmissing-field-initializers',
'-Wpointer-arith',
'-fmessage-length=0', # be nice to Eclipse
]
cflags += [
'-Wdeclaration-after-statement',
'-Wmissing-prototypes',
]
if env['msvc']:
if env['debug']:
ccflags += [
'/Od', # disable optimizations
'/Oi', # enable intrinsic functions
'/Oy-', # disable frame pointer omission
'/GL-', # disable whole program optimization
]
else:
ccflags += [
'/O2', # optimize for speed
]
ccflags += [
'/EHsc', # set exception handling model
#'/W3', # warning level
#'/Wp64', # enable 64 bit porting warnings
]
# Automatic pdb generation
# See http://scons.tigris.org/issues/show_bug.cgi?id=1656
env.EnsureSConsVersion(0, 98, 0)
env['PDB'] = '${TARGET.base}.pdb'
env.Append(CCFLAGS = ccflags)
env.Append(CFLAGS = cflags)
env.Append(CXXFLAGS = cxxflags)
if env['platform'] == 'windows' and env['msvc']:
# Choose the appropriate MSVC CRT
# http://msdn.microsoft.com/en-us/library/2kzt1wy3.aspx
if env['debug']:
env.Append(CCFLAGS = ['/MTd'])
env.Append(SHCCFLAGS = ['/LDd'])
else:
env.Append(CCFLAGS = ['/MT'])
env.Append(SHCCFLAGS = ['/LD'])
# Assembler options
if env['gcc']:
if env['machine'] == 'x86':
env.Append(ASFLAGS = ['-m32'])
if env['machine'] == 'x86_64':
env.Append(ASFLAGS = ['-m64'])
# Linker options
linkflags = []
if env['gcc']:
if env['machine'] == 'x86':
linkflags += ['-m32']
if env['machine'] == 'x86_64':
linkflags += ['-m64']
if env['platform'] == 'windows' and env['msvc']:
# See also:
# - http://msdn2.microsoft.com/en-us/library/y0zzbyt4.aspx
linkflags += [
'/fixed:no',
'/incremental:no',
]
env.Append(LINKFLAGS = linkflags)
if env['platform'] in ('freebsd', 'linux', 'unix'):
env.Append(CPPDEFINES = [
'__UNIX__',
'__X11__',
])
env.Prepend(LIBS = [
'GLU',
'GL',
])
if env['platform'] == 'windows':
env.Append(CPPDEFINES = [
'__WIN__',
'__MS__',
])
env.Prepend(LIBS = [
'glu32',
'opengl32',
'gdi32',
'user32',
'kernel32',
])
if env['platform'] == 'darwin':
env.Append(CPPDEFINES = [
'__UNIX__',
'__AGL__',
])
env.Prepend(FRAMEWORKS = [
'AGL',
'Carbon',
'GLUT',
'OpenGL',
])
variant = env['platform']
if env['machine'] != 'generic':
variant += '-' + env['machine']
if env['debug']:
variant += '-debug'
env['variant'] = variant
# Put all SCons' persistent data in the build dir
build_dir = os.path.join('..', 'build', variant)
env.SConsignFile(os.path.join(build_dir, 'sign'))
env['CONFIGUREDIR'] = os.path.join(build_dir, 'conf')
env['CONFIGURELOG'] = os.path.join(build_dir, 'config.log')
conf = Configure(env)
if not conf.CheckCHeader('GL/glext.h'):
conf.env.Prepend(CPPPATH = ['#glext'])
if conf.CheckCHeader('GL/glut.h'):
if env['platform'] == 'windows':
conf.env.Prepend(LIBS = ['glut32'])
else:
conf.env.Prepend(LIBS = ['glut'])
conf.env['glut'] = True
else:
conf.env['glut'] = False
has_tiff = conf.CheckCHeader('tiff.h')
env = conf.Finish()
if has_tiff:
conf.env.Prepend(LIBS = ['tiff'])
else:
SConscript(['tiff/SConscript'])
Import(['tiff'])
conf.env.Prepend(CPPPATH = ['#tiff'])
conf.env.Prepend(LIBS = [tiff])
env.Prepend(CPPPATH = [
'#glh',
'#libs/dsurf',
'#libs/image',
'#libs/lex',
'#libs/rand',
'#libs/stats',
'#libs/timer',
])
env.VariantDir(build_dir, '.', duplicate=0)
SConscript('SConscript', variant_dir=build_dir, duplicate=0)
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