This uses an automatic variable to push and pop variable scope inside a
function call. Previously if the function failed its scope would not be
popped. This approach guarantees a balanced push/pop.
- Add cmMakefile methods IssueError and IssueWarning
- Maintain an explicit call stack in cmMakefile
- Include context/call-stack info in messages
- Nested errors now unwind the call stack
- Use new mechanism for policy warnings and errors
- Improve policy error message
- Include cmExecutionStatus pointer in call stack
so that errors deeper in the C++ stack under
a command invocation will become errors for the
command
Brad King
Bill Hoffman
Ken Martin