3 # SCons - a Software Constructor
5 # Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 The SCons Foundation
7 # Permission is hereby granted, free of charge, to any person obtaining
8 # a copy of this software and associated documentation files (the
9 # "Software"), to deal in the Software without restriction, including
10 # without limitation the rights to use, copy, modify, merge, publish,
11 # distribute, sublicense, and/or sell copies of the Software, and to
12 # permit persons to whom the Software is furnished to do so, subject to
13 # the following conditions:
15 # The above copyright notice and this permission notice shall be included
16 # in all copies or substantial portions of the Software.
18 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
19 # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
20 # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
21 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
22 # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 __revision__ = "src/script/scons.py 3842 2008/12/20 22:59:52 scons"
33 __buildsys__ = "scons-dev"
35 __date__ = "2008/12/20 22:59:52"
37 __developer__ = "scons"
43 ##############################################################################
44 # BEGIN STANDARD SCons SCRIPT HEADER
46 # This is the cut-and-paste logic so that a self-contained script can
47 # interoperate correctly with different SCons versions and installation
48 # locations for the engine. If you modify anything in this section, you
49 # should also change other scripts that use this same header.
50 ##############################################################################
52 # Strip the script directory from sys.path() so on case-insensitive
53 # (WIN32) systems Python doesn't think that the "scons" script is the
54 # "SCons" package. Replace it with our own library directories
55 # (version-specific first, in case they installed by hand there,
56 # followed by generic) so we pick up the right version of the build
57 # engine modules if they're in either directory.
59 script_dir = sys.path[0]
61 if script_dir in sys.path:
62 sys.path.remove(script_dir)
66 if os.environ.has_key("SCONS_LIB_DIR"):
67 libs.append(os.environ["SCONS_LIB_DIR"])
69 local_version = 'scons-local-' + __version__
72 local_version = os.path.join(script_dir, local_version)
73 local = os.path.join(script_dir, local)
74 libs.append(os.path.abspath(local_version))
75 libs.append(os.path.abspath(local))
77 scons_version = 'scons-%s' % __version__
81 if sys.platform == 'win32':
82 # sys.prefix is (likely) C:\Python*;
83 # check only C:\Python*.
84 prefs.append(sys.prefix)
85 prefs.append(os.path.join(sys.prefix, 'Lib', 'site-packages'))
87 # On other (POSIX) platforms, things are more complicated due to
88 # the variety of path names and library locations. Try to be smart
90 if script_dir == 'bin':
91 # script_dir is `pwd`/bin;
92 # check `pwd`/lib/scons*.
93 prefs.append(os.getcwd())
95 if script_dir == '.' or script_dir == '':
96 script_dir = os.getcwd()
97 head, tail = os.path.split(script_dir)
99 # script_dir is /foo/bin;
100 # check /foo/lib/scons*.
103 head, tail = os.path.split(sys.prefix)
105 # sys.prefix is /foo/usr;
106 # check /foo/usr/lib/scons* first,
107 # then /foo/usr/local/lib/scons*.
108 prefs.append(sys.prefix)
109 prefs.append(os.path.join(sys.prefix, "local"))
110 elif tail == "local":
111 h, t = os.path.split(head)
113 # sys.prefix is /foo/usr/local;
114 # check /foo/usr/local/lib/scons* first,
115 # then /foo/usr/lib/scons*.
116 prefs.append(sys.prefix)
119 # sys.prefix is /foo/local;
120 # check only /foo/local/lib/scons*.
121 prefs.append(sys.prefix)
123 # sys.prefix is /foo (ends in neither /usr or /local);
124 # check only /foo/lib/scons*.
125 prefs.append(sys.prefix)
127 temp = map(lambda x: os.path.join(x, 'lib'), prefs)
128 temp.extend(map(lambda x: os.path.join(x,
130 'python' + sys.version[:3],
134 # Add the parent directory of the current python's library to the
135 # preferences. On SuSE-91/AMD64, for example, this is /usr/lib64,
138 libpath = os.__file__
139 except AttributeError:
142 # Split /usr/libfoo/python*/os.py to /usr/libfoo/python*.
143 libpath, tail = os.path.split(libpath)
144 # Split /usr/libfoo/python* to /usr/libfoo
145 libpath, tail = os.path.split(libpath)
146 # Check /usr/libfoo/scons*.
147 prefs.append(libpath)
149 # Look first for 'scons-__version__' in all of our preference libs,
151 libs.extend(map(lambda x: os.path.join(x, scons_version), prefs))
152 libs.extend(map(lambda x: os.path.join(x, 'scons'), prefs))
154 sys.path = libs + sys.path
156 ##############################################################################
157 # END STANDARD SCons SCRIPT HEADER
158 ##############################################################################
160 if __name__ == "__main__":
162 # this does all the work, and calls sys.exit
163 # with the proper exit status when done.