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      1 import filecmp
      2 import os
      3 import subprocess
      4 
      5 Import('*')
      6 
      7 if env['platform'] == 'windows':
      8     SConscript('getopt/SConscript')
      9 
     10 SConscript('util/SConscript')
     11 SConscript('compiler/SConscript')
     12 
     13 if env['hostonly']:
     14     # We are just compiling the things necessary on the host for cross
     15     # compilation
     16     Return()
     17 
     18 
     19 def 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
     56 write_git_sha1_h_file("git_sha1.h")
     57 # and update CPPPATH so the git_sha1.h header can be found
     58 env.Append(CPPPATH = ["#" + env['build_dir']])
     59 
     60 
     61 
     62 if 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.
     69 SConscript('mapi/glapi/gen/SConscript')
     70 SConscript('mapi/glapi/SConscript')
     71 
     72 # Haiku C++ libGL dispatch (renderers depend on libgl)
     73 if env['platform'] in ['haiku']:
     74     SConscript('hgl/SConscript')
     75 
     76 SConscript('mesa/SConscript')
     77 
     78 if 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 
     87 SConscript('gallium/SConscript')
     88 
     89