1import filecmp
2import os
3import subprocess
4
5Import('*')
6
7if env['platform'] == 'windows':
8    SConscript('getopt/SConscript')
9
10SConscript('util/SConscript')
11SConscript('compiler/SConscript')
12
13if env['hostonly']:
14    # We are just compiling the things necessary on the host for cross
15    # compilation
16    Return()
17
18
19def write_git_sha1_h_file(filename):
20    """Mesa looks for a git_sha1.h file at compile time in order to display
21    the current git hash id in the GL_VERSION string.  This function tries
22    to retrieve the git hashid and write the header file.  An empty file
23    will be created if anything goes wrong."""
24
25    args = [ 'git', 'rev-parse', '--short=10', 'HEAD' ]
26    try:
27        (commit, foo) = subprocess.Popen(args, stdout=subprocess.PIPE).communicate()
28    except:
29        print "Warning: exception in write_git_sha1_h_file()"
30        # git log command didn't work
31        if not os.path.exists(filename):
32            dirname = os.path.dirname(filename)
33            if dirname and not os.path.exists(dirname):
34                os.makedirs(dirname)
35            # create an empty file if none already exists
36            f = open(filename, "w")
37            f.close()
38        return
39
40    # note that commit[:-1] removes the trailing newline character
41    commit = '#define MESA_GIT_SHA1 "git-%s"\n' % commit[:-1]
42    tempfile = "git_sha1.h.tmp"
43    f = open(tempfile, "w")
44    f.write(commit)
45    f.close()
46    if not os.path.exists(filename) or not filecmp.cmp(tempfile, filename):
47        # The filename does not exist or it's different from the new file,
48        # so replace old file with new.
49        if os.path.exists(filename):
50            os.remove(filename)
51        os.rename(tempfile, filename)
52    return
53
54
55# Create the git_sha1.h header file
56write_git_sha1_h_file("git_sha1.h")
57# and update CPPPATH so the git_sha1.h header can be found
58env.Append(CPPPATH = ["#" + env['build_dir']])
59
60
61
62if env['platform'] != 'windows':
63    SConscript('loader/SConscript')
64
65# When env['gles'] is set, the targets defined in mapi/glapi/SConscript are not
66# used.  libgl-xlib and libgl-gdi adapt themselves to use the targets defined
67# in mapi/glapi-shared/SConscript.  mesa/SConscript also adapts itself to
68# enable OpenGL ES support.
69SConscript('mapi/glapi/gen/SConscript')
70SConscript('mapi/glapi/SConscript')
71
72# Haiku C++ libGL dispatch (renderers depend on libgl)
73if env['platform'] in ['haiku']:
74    SConscript('hgl/SConscript')
75
76SConscript('mesa/SConscript')
77
78if not env['embedded']:
79    if env['platform'] not in ('cygwin', 'darwin', 'freebsd', 'haiku', 'windows'):
80        SConscript('glx/SConscript')
81    if env['platform'] == 'haiku':
82        SConscript('egl/SConscript')
83
84    if env['gles']:
85        SConscript('mapi/shared-glapi/SConscript')
86
87SConscript('gallium/SConscript')
88
89