codegen/override.py: Fix the lookup of override files in the specified search directories.

Original commit message from CVS:
* codegen/override.py:
Fix the lookup of override files in the specified search directories.
* gst/Makefile.am:
Don't distribute gstversion.override
Fixup .defs => .c make instructions
All the above fixes the cases where you're building in a directory
different from the source directory.

ChangeLog

@@ -1,3 +1,13 @@
+2006-11-22  Edward Hervey  <edward@fluendo.com>
+
+	* codegen/override.py:
+	Fix the lookup of override files in the specified search directories.
+	* gst/Makefile.am:
+	Don't distribute gstversion.override
+	Fixup .defs => .c make instructions
+	All the above fixes the cases where you're building in a directory
+	different from the source directory.
+
 2006-11-15  Michael Smith  <msmith@fluendo.com>
 
 	* gst/extend/discoverer.py:

codegen/override.py

@@ -44,7 +44,7 @@ class Overrides:
         self.defines = {}
         self.functions = {}
 	self.newstyle_constructors = {}
-        self.path = path
+        self.path = [os.path.abspath(x) for x in path]
 	if filename:
             self.handle_file(filename)
 
@@ -54,15 +54,16 @@ class Overrides:
         fp = None
         for path in self.path:
             os.chdir(oldpath)
-            os.chdir(os.path.abspath(path))
+            os.chdir(path)
             try:
                 fp = open(filename, 'r')
+                break
             except:
-                continue
+                os.chdir(oldpath)
         if not fp:
             raise Exception, "Couldn't find file %s" % filename
         
-        dirname = os.path.dirname(os.path.abspath(filename))
+        dirname = path
 
         if dirname != oldpath:
             os.chdir(dirname)

gst/Makefile.am

@@ -51,7 +51,6 @@ _gst_la_SOURCES = 		\
 nodist__gst_la_SOURCES = gst.c
 GST_OVERRIDES = 		\
 	gst.override 		\
-	gstversion.override	\
 	gstbin.override 	\
 	gstbuffer.override 	\
 	gstbus.override		\
@@ -87,13 +86,13 @@ EXTRA_DIST += $(INTERFACES_DEFS) $(INTERFACES_OVERRIDES)
 interfaces.c: $(INTERFACES_DEFS) $(INTERFACES_OVERRIDES) $(GEN_FILES)
 
 .defs.c: 
-	(cd $(srcdir) \
-	&& python $(top_srcdir)/codegen/codegen.py \
+	($(PYTHON) $(top_srcdir)/codegen/codegen.py \
 		--load-types $(srcdir)/arg-types.py \
 		--register $(srcdir)/gst-types.defs \
-		--override $*.override \
+		--override $(srcdir)/$*.override \
 		--extendpath $(top_builddir)/gst/ \
-		--prefix py$* $*.defs) > gen-$*.c \
+		--extendpath $(srcdir)/ \
+		--prefix py$* $<) > gen-$*.c \
 	&& cp gen-$*.c $*.c \
 	&& rm -f gen-$*.c