This new warning adds a lot of warnings in the Cappuccino frameworks. I have turned off
the warning in the Jakefiles when compiling most of the Cappuccino frameworks. But it is
on as default for any user projects.
So there is also a new feature to turn off/on warnings as a compiler flag.
These flags are (all flags are on as default):
-Wunused-but-set-variable Warning when a local variable is never read.
-Wshadow-ivar Warning when a local variable is shadowing an instance variable for the class.
-Wcreate-global-inside-function-or-method Warning when creating a global variable inside a function or method.
-Wunknown-class-or-global Warning when a class or global variable is not known.
-Wunknown-ivar-type Warning when the type for an instance variable is not known.
To turn off a flag add a 'no-' prefix. Example: -Wno-unused-but-set-variable
For an example how to use it in a Jakefile please look at the Jakefiles in this commit.
Previously, when popen was called, the 3 streams (stdin, stderr and stdourt) where never closed. This was the reason of the having an impossible number of open files.
This patch ensure all streams are closed after using them. This means that the ulimit trick is no more necessary
* require common.jake first
* require Objective-J/Cappuccino stuff only when needed (automatically requiring these caused too many problems)
* remove useless shebangs, cleanup whitespace