1 ####################################################################### 2 # Top-level SConstruct 3 # 4 # For example, invoke scons as 5 # 6 # scons build=debug llvm=yes machine=x86 7 # 8 # to set configuration variables. Or you can write those options to a file 9 # named config.py: 10 # 11 # # config.py 12 # build='debug' 13 # llvm=True 14 # machine='x86' 15 # 16 # Invoke 17 # 18 # scons -h 19 # 20 # to get the full list of options. See scons manpage for more info. 21 # 22 23 import os 24 import os.path 25 import sys 26 import SCons.Util 27 28 import common 29 30 ####################################################################### 31 # Configuration options 32 33 opts = Variables('config.py') 34 common.AddOptions(opts) 35 36 env = Environment( 37 options = opts, 38 tools = ['gallium'], 39 toolpath = ['#scons'], 40 ENV = os.environ, 41 ) 42 43 # XXX: This creates a many problems as it saves... 44 #opts.Save('config.py', env) 45 46 # Backwards compatability with old target configuration variable 47 try: 48 targets = ARGUMENTS['targets'] 49 except KeyError: 50 pass 51 else: 52 targets = targets.split(',') 53 print 'scons: warning: targets option is deprecated; pass the targets on their own such as' 54 print 55 print ' scons %s' % ' '.join(targets) 56 print 57 COMMAND_LINE_TARGETS.append(targets) 58 59 60 Help(opts.GenerateHelpText(env)) 61 62 # fail early for a common error on windows 63 if env['gles']: 64 try: 65 import libxml2 66 except ImportError: 67 raise SCons.Errors.UserError, "GLES requires libxml2-python to build" 68 69 ####################################################################### 70 # Environment setup 71 72 # Includes 73 env.Prepend(CPPPATH = [ 74 '#/include', 75 ]) 76 env.Append(CPPPATH = [ 77 '#/src/gallium/include', 78 '#/src/gallium/auxiliary', 79 '#/src/gallium/drivers', 80 '#/src/gallium/winsys', 81 ]) 82 83 if env['msvc']: 84 env.Append(CPPPATH = ['#include/c99']) 85 86 # for debugging 87 #print env.Dump() 88 89 90 ####################################################################### 91 # Invoke host SConscripts 92 # 93 # For things that are meant to be run on the native host build machine, instead 94 # of the target machine. 95 # 96 97 # Create host environent 98 if env['crosscompile'] and not env['embedded']: 99 host_env = Environment( 100 options = opts, 101 # no tool used 102 tools = [], 103 toolpath = ['#scons'], 104 ENV = os.environ, 105 ) 106 107 # Override options 108 host_env['platform'] = common.host_platform 109 host_env['machine'] = common.host_machine 110 host_env['toolchain'] = 'default' 111 host_env['llvm'] = False 112 113 host_env.Tool('gallium') 114 115 host_env['hostonly'] = True 116 assert host_env['crosscompile'] == False 117 118 if host_env['msvc']: 119 host_env.Append(CPPPATH = ['#include/c99']) 120 121 target_env = env 122 env = host_env 123 Export('env') 124 125 SConscript( 126 'src/SConscript', 127 variant_dir = host_env['build_dir'], 128 duplicate = 0, # http://www.scons.org/doc/0.97/HTML/scons-user/x2261.html 129 ) 130 131 env = target_env 132 133 Export('env') 134 135 ####################################################################### 136 # Invoke SConscripts 137 138 # TODO: Build several variants at the same time? 139 # http://www.scons.org/wiki/SimultaneousVariantBuilds 140 141 SConscript( 142 'src/SConscript', 143 variant_dir = env['build_dir'], 144 duplicate = 0 # http://www.scons.org/doc/0.97/HTML/scons-user/x2261.html 145 ) 146 147 148 ######################################################################## 149 # List all aliases 150 151 try: 152 from SCons.Node.Alias import default_ans 153 except ImportError: 154 pass 155 else: 156 aliases = default_ans.keys() 157 aliases.sort() 158 env.Help('\n') 159 env.Help('Recognized targets:\n') 160 for alias in aliases: 161 env.Help(' %s\n' % alias) 162
