make last point a bit more verbose

[supertux.git] / SConstruct

diff --git a/SConstruct b/SConstruct
index c871b8d..eab3608 100644 (file)
--- a/SConstruct
+++ b/SConstruct
@@ -1,54 +1,101 @@
 #
 # SConstruct build file. See http://www.scons.org for details.
+import os
 
-# based on a script from chenlee@ustc.edu
 def Glob(dirs, pattern = '*' ):
-    import os, fnmatch 
+    import os, fnmatch
     files = []
     for dir in dirs:
-        for file in os.listdir( Dir(dir).srcnode().abspath ): 
-            if fnmatch.fnmatch(file, pattern) : 
-                files.append( os.path.join( dir, file ) ) 
-    return files 
+        for file in os.listdir( Dir(dir).srcnode().abspath ):
+            if fnmatch.fnmatch(file, pattern) :
+                files.append( os.path.join( dir, file ) )
+    return files
 
-opts = Options('custom.py')
+# thanks to Michael P Jung
+def CheckSDLConfig(context, minVersion):
+    context.Message('Checking for sdl-config >= %s... ' % minVersion)
+    from popen2 import Popen3
+    p = Popen3(['sdl-config', '--version'])
+    ret = p.wait()
+    out = p.fromchild.readlines()
+    if ret != 0:
+        context.Result(False)
+        return False
+    if len(out) != 1:
+        # unable to parse output!
+        context.Result(False)
+        return False
+    # TODO validate output and catch exceptions
+    version = map(int, out[0].strip().split('.'))
+    minVersion = map(int, minVersion.split('.'))
+    # TODO comparing versions that way only works for pure numeric version
+    # numbers and fails for custom extensions. I don't care about this at
+    # the moment as sdl-config never used such version numbers afaik.
+    ret = (version >= minVersion)
+    context.Result(ret)
+    return ret
+
+
+opts = Options('build_config.py')
 opts.Add('CXX', 'The C++ compiler', 'g++')
 opts.Add('CXXFLAGS', 'Additional C++ compiler flags', '')
 opts.Add('CPPPATH', 'Additional preprocessor paths', '')
 opts.Add('CPPFLAGS', 'Additional preprocessor flags', '')
+opts.Add('CPPDEFINES', 'defined constants', '')
 opts.Add('LIBPATH', 'Additional library paths', '')
 opts.Add('LIBS', 'Additional libraries', '')
 opts.Add('DESTDIR', \
         'destination directory for installation. It is prepended to PREFIX', '')
 opts.Add('PREFIX', 'Installation prefix', '/usr/local')
+opts.Add(EnumOption('VARIANT', 'Build variant', 'optimize',
+            ['optimize', 'debug', 'profile']))
 
 env = Environment(options = opts)
-conf = Configure(env)
 
-# TODO check -config apps in the Configure context
-    
-if not conf.CheckLib('SDL_mixer'):
-    print "Couldn't find SDL_mixer library!"
-    Exit(1)
-if not conf.CheckLib('SDL_image'):
-    print "Couldn't find SDL_image library!"
-    Exit(1)
-if not conf.CheckLib('GL'):
-    print "Couldn't find OpenGL library!"
-    Exit(1)
-
-env = conf.Finish()
-
-env.ParseConfig('sdl-config --cflags --libs')
-env.Append(CPPPATH = ["#", "#/src", "#/lib"])
-env.Append(CPPDEFINES = \
+if not os.path.exists("build_config.py"):
+    print "build_config.py doesn't exist - Generating new build config..."
+        
+    conf = Configure(env, custom_tests = {
+        'CheckSDLConfig' : CheckSDLConfig
+    })
+
+    if not conf.CheckSDLConfig('1.2.4'):
+        print "Couldn't find libSDL >= 1.2.4"
+        Exit(1)
+    if not conf.CheckLib('SDL_mixer'):
+        print "Couldn't find SDL_mixer library!"
+        Exit(1)
+    if not conf.CheckLib('SDL_image'):
+        print "Couldn't find SDL_image library!"
+        Exit(1)
+    if not conf.CheckLib('GL'):
+        print "Couldn't find OpenGL library!"
+        Exit(1)
+
+    env = conf.Finish()
+
+    env.ParseConfig('sdl-config --cflags --libs')
+    env.Append(CPPDEFINES = \
         {'DATA_PREFIX':"'\"" + env['PREFIX'] + "/share/supertux\"'" ,
          'LOCALEDIR'  :"'\"" + env['PREFIX'] + "/locales\"'"})
+    opts.Save("build_config.py", env)
+else:
+    print "Using build_config.py"
+    
 
-env.Append(LIBS = ["supertux"])
-env.Append(LIBPATH=["#"])
+if env['VARIANT'] == "optimize":
+    env.Append(CXXFLAGS = "-O2 -g")
+elif env['VARIANT'] == "debug":
+    env.Append(CXXFLAGS = "-O0 -g3 -Wall -Werror")
+    env.Append(CPPDEFINES = { "DEBUG":"1" })
+elif env['VARIANT'] == "profile":
+    env.Append(CXXFLAGS = "-pg -O2")
 
-build_dir="build/linux"
+build_dir="build/" + env['PLATFORM'] + "/" + env['VARIANT']
+
+env.Append(CPPPATH = ["#", "#/src", "#/lib"])
+env.Append(LIBS = ["supertux"])
+env.Append(LIBPATH=["#" + build_dir + "/lib"])
 
 env.Export(["env", "Glob"])
 env.SConscript("lib/SConscript", build_dir=build_dir + "/lib", duplicate=0)