Mac Forum / Programming / Mac Programming / February 2010

now THIS is extremely odd
it appears that if isn't being properly tested.
[commandLine string] contains @"-help"
- (IBAction)sendCommandLine:(id)sender

The garbage collector for C and C++?
I ran into some problems with compiling gc-7.1 on OS X 10.6.2:
The usual steps are ./configure; make; make install.
The make step produces the error:

I hope this is a simple one...
When I start a new project in Xcode 3.2.1 (64bit) what are the steps I need
to do to ensure that the resulting code will work under MacOS X 10.4? What
settings in the project do I need to alter?

ok, i've done my window in interface builder, created subclasses,
created instances, added actions and outlets, linked them together to
the window, and now i have a problem.  i click a button and it goes to
the button handler and the button has to see what's in a text field but

I am currently porting my tcp/ip socket class to Mac OS X and have the
following problem:
The function ioctl seems to be known, but FIONREAD is not known.
int result = ioctl (clientSocket, FIONREAD, &pendingBytes);

My MainMenu.nib cannot be checked into my repository. I get an error
that says its already under version control. I just localized the
project into 3 other languages and although XCode's (3.2.1) SCM results
displays a (?) next to each localization, it also tells me that they are

In order to use rtmpdump (which I have compiled on my mac) I have to
run this command :
sudo iptables -t nat -A OUTPUT -p tcp --dport 1935 -j REDIRECT
But there is no iptables on mac os, only ipfw ...

When I use a command in the terminal (i.e curl) how can i know where
the command is located on my system ?
thanks !
carmelo

I am having trouble as a C beginning trying to compile the code below
using XCode.  I am new to C and have always programmed in pascal in
the past. This is to be a plugin for 4th Dimension.  Most of the hooks
were generated with "4D Plugin Wizard".  It generates the C code for

I have a bit of code that do the following thing :
- create a shared_memory area with mmap and MAP_PRIVATE
- create in that shared area a mutex and a condition variable with a
pshared attribute set to pshared.

What kind of project template should I select within XCode if I want
to build an OpenGL application built on glut.
I tried a simple C++ tool and added the GLut framework to the project
from:

Running Mac OS X 10.6.2 (Snow Leopard) ...
When running ranlib, I sometimes get error msgs saying that a particular
library entry has no symbols.  This most recently happened with the FLTK
libraries, e.g.:

I need to listen on port 104.
Its below 1024 so I need 'permission' to listen....
What do I do to an app bundle so that when the app is launched it will
be able to open port 104?