SConstruct revision a7ce6d399221fbb59d96d56c853de9781bbf2547 
1#######################################################################
2# Top-level SConstruct
3#
4# For example, invoke scons as 
5#
6#   scons debug=1 dri=0 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#   debug=1
13#   dri=0
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
23import os
24import os.path
25import sys
26
27import common
28
29#######################################################################
30# Configuration options
31
32if common.default_platform in ('linux', 'freebsd', 'darwin'):
33	default_statetrackers = 'mesa'
34	default_drivers = 'softpipe,failover,i915simple,i965simple'
35	default_winsys = 'xlib'
36elif common.default_platform in ('winddk',):
37	default_statetrackers = 'none'
38	default_drivers = 'softpipe,i915simple'
39	default_winsys = 'none'
40else:
41	default_drivers = 'all'
42	default_winsys = 'all'
43
44opts = Options('config.py')
45common.AddOptions(opts)
46opts.Add(ListOption('statetrackers', 'state_trackers to build', default_statetrackers,
47                     ['mesa']))
48opts.Add(ListOption('drivers', 'pipe drivers to build', default_drivers,
49                     ['softpipe', 'failover', 'i915simple', 'i965simple', 'cell']))
50opts.Add(ListOption('winsys', 'winsys drivers to build', default_winsys,
51                     ['xlib', 'intel'])) 
52
53env = Environment(
54	options = opts, 
55	ENV = os.environ)
56Help(opts.GenerateHelpText(env))
57
58# replicate options values in local variables
59debug = env['debug']
60dri = env['dri']
61llvm = env['llvm']
62machine = env['machine']
63platform = env['platform']
64
65# derived options
66x86 = machine == 'x86'
67gcc = platform in ('linux', 'freebsd', 'darwin')
68msvc = platform in ('windows', 'winddk')
69
70Export([
71	'debug', 
72	'x86', 
73	'dri', 
74	'llvm',
75	'platform',
76	'gcc',
77	'msvc',
78])
79
80
81#######################################################################
82# Environment setup
83#
84# TODO: put the compiler specific settings in separate files
85# TODO: auto-detect as much as possible
86
87if platform == 'winddk':
88	env.Tool('winddk', ['.'])
89	
90	env.Append(CPPPATH = [
91		env['SDK_INC_PATH'],
92		env['DDK_INC_PATH'],
93		env['WDM_INC_PATH'],
94		env['CRT_INC_PATH'],
95	])
96
97common.generate(env)
98
99
100# Includes
101env.Append(CPPPATH = [
102	'#/include',
103	'#/src/gallium/include',
104	'#/src/gallium/auxiliary',
105	'#/src/gallium/drivers',
106])
107
108
109# x86 assembly
110if x86:
111	env.Append(CPPDEFINES = [
112		'USE_X86_ASM', 
113		'USE_MMX_ASM',
114		'USE_3DNOW_ASM',
115		'USE_SSE_ASM',
116	])
117	if gcc:	
118		env.Append(CFLAGS = '-m32')
119		env.Append(CXXFLAGS = '-m32')
120
121
122# Posix
123if platform in ('posix', 'linux', 'freebsd', 'darwin'):
124	env.Append(CPPDEFINES = [
125		'_POSIX_SOURCE',
126		('_POSIX_C_SOURCE', '199309L'), 
127		'_SVID_SOURCE',
128		'_BSD_SOURCE', 
129		'_GNU_SOURCE',
130		
131		'PTHREADS',
132		'HAVE_POSIX_MEMALIGN',
133	])
134	env.Append(CPPPATH = ['/usr/X11R6/include'])
135	env.Append(LIBPATH = ['/usr/X11R6/lib'])
136	env.Append(LIBS = [
137		'm',
138		'pthread',
139		'expat',
140		'dl',
141	])
142
143
144# DRI
145if dri:
146	env.ParseConfig('pkg-config --cflags --libs libdrm')
147	env.Append(CPPDEFINES = [
148		('USE_EXTERNAL_DXTN_LIB', '1'), 
149		'IN_DRI_DRIVER',
150		'GLX_DIRECT_RENDERING',
151		'GLX_INDIRECT_RENDERING',
152	])
153
154# LLVM
155if llvm:
156	# See also http://www.scons.org/wiki/UsingPkgConfig
157	env.ParseConfig('llvm-config --cflags --ldflags --libs')
158	env.Append(CPPDEFINES = ['MESA_LLVM'])
159        # Force C++ linkage
160	env['LINK'] = env['CXX']
161
162# libGL
163if platform in ('linux', 'freebsd', 'darwin'):
164	env.Append(LIBS = [
165		'X11',
166		'Xext',
167		'Xxf86vm',
168		'Xdamage',
169		'Xfixes',
170	])
171
172# for debugging
173#print env.Dump()
174
175Export('env')
176
177
178#######################################################################
179# Invoke SConscripts
180
181# TODO: Build several variants at the same time?
182# http://www.scons.org/wiki/SimultaneousVariantBuilds
183
184SConscript(
185	'src/SConscript',
186	build_dir = common.make_build_dir(env),
187	duplicate = 0 # http://www.scons.org/doc/0.97/HTML/scons-user/x2261.html
188)
189