build: AMBuild 2.2 uplift (#32)

AMBuildScript

@@ -50,6 +50,12 @@ class SteamWorksConfig(object):
     self.steamworks_root = None
     self.extensions = []
 
+    # Note: only one architecture supported per build right now.
+    if builder.options.target:
+        builder.cxx = builder.DetectCxx(target_arch = builder.options.target)
+    else:
+        builder.cxx = builder.DetectCxx()
+
   @property
   def tag(self):
     if builder.options.debug == '1':
@@ -63,7 +69,7 @@ class SteamWorksConfig(object):
 
     for sdk_name in PossibleSDKs:
       sdk = PossibleSDKs[sdk_name]
-      if builder.target_platform in sdk.platform:
+      if builder.cxx.target.platform in sdk.platform:
         if builder.options.hl2sdk_root:
           sdk_path = os.path.join(builder.options.hl2sdk_root, sdk.folder)
         else:
@@ -124,8 +130,10 @@ class SteamWorksConfig(object):
   def configure(self):
     builder.AddConfigureFile('pushbuild.txt')
 
-    cxx = builder.DetectCompilers()
+    # Only one compiler to configure.
+    self.configure_cxx(builder.cxx)
 
+  def configure_cxx(self, cxx):
     if cxx.like('gcc'):
       cxx.defines += [
         'stricmp=strcasecmp',
@@ -165,7 +173,7 @@ class SteamWorksConfig(object):
           cxx.cflags += ['-Wno-unused-result']
       if have_clang:
         cxx.cxxflags += ['-Wno-implicit-exception-spec-mismatch']
-        if (builder.target_platform == 'mac' and cxx.version >= '5.1') or cxx.version >= '3.4':
+        if (cxx.target.platform == 'mac' and cxx.version >= '5.1') or cxx.version >= '3.4':
           cxx.cxxflags += ['-Wno-deprecated-register']
         else:
           cxx.cxxflags += ['-Wno-deprecated']
@@ -241,13 +249,13 @@ class SteamWorksConfig(object):
       cxx.cflags += ['/Oy-']
 
     # Platform-specifics
-    if builder.target_platform == 'linux':
+    if cxx.target.platform == 'linux':
       cxx.defines += ['_LINUX', 'POSIX']
       if cxx.vendor == 'gcc':
         cxx.linkflags += ['-static-libgcc']
       elif cxx.vendor == 'clang':
         cxx.linkflags += ['-lgcc_eh']
-    elif builder.target_platform == 'mac':
+    elif cxx.target.platform == 'mac':
       cxx.defines += ['OSX', '_OSX', 'POSIX']
       cxx.cflags += ['-mmacosx-version-min=10.5']
       cxx.linkflags += [
@@ -257,7 +265,7 @@ class SteamWorksConfig(object):
         '-stdlib=libc++'
       ]
       cxx.cxxflags += ['-stdlib=libstdc++']
-    elif builder.target_platform == 'windows':
+    elif cxx.target.platform == 'windows':
       cxx.defines += ['WIN32', '_WINDOWS']
 	  
   def ConfigureForExtension(self, context, compiler):
@@ -299,12 +307,12 @@ class SteamWorksConfig(object):
     return self.ConfigureForHL2(binary, sdk)
 	
   def HL2Project(self, context, name):
-    project = context.compiler.LibraryProject(name)
-    self.ConfigureForExtension(context, project.compiler)
+    project = context.LibraryProject(name)
+    self.ConfigureForExtension(context, context.cxx)
     return project
 
-  def HL2Config(self, project, name, sdk):
-    binary = project.Configure(name, '{0} - {1}'.format(self.tag, sdk.name))
+  def HL2Config(self, project, cxx, name, sdk):
+    binary = project.Configure(cxx, name, '{0} - {1}'.format(self.tag, sdk.name))
     return self.ConfigureForHL2(binary, sdk)
 
 SteamWorks = SteamWorksConfig()
@@ -313,5 +321,5 @@ SteamWorks.configure()
 
 BuildScripts = ['Extension/AMBuilder']
 
-builder.RunBuildScripts(BuildScripts, { 'SteamWorks': SteamWorks })
-builder.RunScript('buildbot/PackageScript', { 'SteamWorks': SteamWorks })
+builder.Build(BuildScripts, { 'SteamWorks': SteamWorks })
+builder.Build('buildbot/PackageScript', { 'SteamWorks': SteamWorks })