Make sure that functions added to gl_API.xml that do not have any GLX

section are marked as ignored.  Also ignore any functions that don't have
assigned dispatch offsets.

Fold Adam Jackson's changes to indirect_size.c into the generator scripts so
that they don't get lost.  "DO NOT EDIT" really means "DO NOT EDIT". ;)

src/mesa/glapi/glX_XML.py

@@ -62,6 +62,10 @@ def printNoinline():
 #    define NOINLINE
 #  endif"""
 
+def printHaveAlias():
+	print """#  if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
+#    define HAVE_ALIAS
+#  endif"""
 
 class glXItemFactory(gl_XML.glItemFactory):
 	"""Factory to create GLX protocol oriented objects derived from glItem."""
@@ -371,6 +375,28 @@ class glXFunction(gl_XML.glFunction):
 			gl_XML.glFunction.startElement(self, name, attrs)
 
 
+	def endElement(self, name):
+		if name == "function":
+			# Mark any function that does not have GLX protocol
+			# defined as "ignore".  This prevents bad things from
+			# happening when people add new functions to the GL
+			# API XML without adding any GLX section.
+			#
+			# This will also mark functions that don't have a
+			# dispatch offset at ignored.
+
+			if (self.fn_offset == -1 and not self.fn_alias) or not (self.handcode or self.glx_rop or self.glx_sop or self.glx_vendorpriv or self.vectorequiv or self.fn_alias):
+				#if not self.ignore:
+				#	if self.fn_offset == -1:
+				#		print '/* %s ignored becuase no offset assigned. */' % (self.name)
+				#	else:
+				#		print '/* %s ignored becuase no GLX opcode assigned. */' % (self.name)
+
+				self.ignore = 1
+
+		return gl_XML.glFunction.endElement(self, name)
+
+
 	def append(self, tag_name, p):
 		gl_XML.glFunction.append(self, tag_name, p)
 

src/mesa/glapi/glX_proto_send.py

@@ -789,6 +789,8 @@ class PrintGlxSizeStubs(glX_XML.GlxProto):
 		print '#include <GL/gl.h>'
 		print '#include "indirect_size.h"'
 		
+		print ''
+		glX_XML.printHaveAlias()
 		print ''
 		glX_XML.printPure()
 		print ''