Fix compiler warnings (STR #2988) - final commit.

This commit includes all fixes from branch-1.3 (svn r 11243) and additional
fixes for warnings that crept in during the porting efforts, particularly
C++ ("//") comments in C and included header files, and some more.


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11246 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

fluid/CodeEditor.cxx

@@ -359,7 +359,7 @@ int CodeEditor::auto_indent(int, CodeEditor* e) {
   char *text = e->buffer()->text_range(start, pos);
   char *ptr;
 
-  for (ptr = text; isspace(*ptr); ptr ++);
+  for (ptr = text; isspace(*ptr); ptr ++) {/*empty*/}
   *ptr = '\0';  
   if (*text) {
     // use only a single 'insert' call to avoid redraw issues