Compile the files in the same order they are passed to the compiler.

Use case: Sometimes 'compiling' source files (with SWIG, for example)
creates additionl files which included by later sources.  The win32all
setup script requires this.

There is no SF item for this, but it was discussed on distutils-sig:
http://mail.python.org/pipermail/distutils-sig/2003-November/003514.html

bcppcompiler.py

@@ -96,7 +96,11 @@ class BCPPCompiler(CCompiler) :
         else:
             compile_opts.extend (self.compile_options)
 
-        for obj, (src, ext) in build.items():
+        for obj in objects:
+            try:
+                src, ext = build[obj]
+            except KeyError:
+                continue
             # XXX why do the normpath here?
             src = os.path.normpath(src)
             obj = os.path.normpath(obj)

ccompiler.py

@@ -691,7 +691,11 @@ class CCompiler:
                                     depends, extra_postargs)
         cc_args = self._get_cc_args(pp_opts, debug, extra_preargs)
 
-        for obj, (src, ext) in build.items():
+        for obj in objects:
+            try:
+                src, ext = build[obj]
+            except KeyError:
+                continue
             self._compile(obj, src, ext, cc_args, extra_postargs, pp_opts)
 
         # Return *all* object filenames, not just the ones we just built.

msvccompiler.py

@@ -291,7 +291,11 @@ class MSVCCompiler (CCompiler) :
         else:
             compile_opts.extend(self.compile_options)
 
-        for obj, (src, ext) in build.items():
+        for obj in objects:
+            try:
+                src, ext = build[obj]
+            except KeyError:
+                continue
             if debug:
                 # pass the full pathname to MSVC in debug mode,
                 # this allows the debugger to find the source file