--- ray/SConstruct	2004/10/21 15:47:11	1.4
+++ ray/SConstruct	2008/12/23 15:03:58	1.7
@@ -4,7 +4,6 @@ import sys
 import string
 
 OPTFILE = 'rayopts.py'
-SourceSignatures('timestamp')
 def set_opts(env):
     # XXX add some caching
     opts = Options(OPTFILE, ARGUMENTS)
@@ -26,7 +25,7 @@ def allplats_setup(env):
     from build_utils import find_libs
     find_libs.find_x11(env)
     find_libs.find_gl(env) # OpenGL
-    #find_libs.find_pixar(env) # PIXAR_LIB for src/px/ra_pixar.c
+    find_libs.find_libtiff(env)
 
 def post_common_setup(env):
     env.Append(CPPPATH = [os.path.join('#src', 'common')])
@@ -44,6 +43,7 @@ def shareinstall_setup(env):
 
 # Set up build environment
 env = Environment()
+env.Decider('timestamp-match')
 
 if os.name == 'posix':
 	from build_utils import install
@@ -79,6 +79,8 @@ for d in Split('meta cv gen ot rt px hd util cal'):
 if string.find(string.join(sys.argv[1:]), 'install') > -1:
 	shareinstall_setup(env)
 
+Default('.')
+
 # virtual targets
 env.Alias('bininstall',  '$RAD_BINDIR')
 env.Alias('rlibinstall', '$RAD_RLIBDIR')
@@ -87,13 +89,4 @@ env.Alias('maninstall',  '$RAD_MANDIR')
 env.Alias('build',   ['#bin'])
 env.Alias('test',    ['#src/test'])
 env.Alias('install', ['bininstall', 'rlibinstall', 'maninstall'])
-
-# Further virtual targets are defined locally:
-# meta_special: mt1601 okimate imagew mt160 mx80 impress aed5
-#               tcurve tscat tbar mtext libt4014.a plotout t4014
-# px_special:   ra_im, t4027, paintjet, mt160t, greyscale, colorscale, d48c
-# util_special: scanner, makedist (not for Windows yet)
-env.Alias('special', ['meta_special', 'px_special', 'util_special'])
-env.Alias('special_install', ['meta_special_install',
-		'px_special_install', 'util_special_install'])