g++ question

[Jason Griffis]

	I'm going through a C++ tutorial trying to increase my knowledge ;)
Any way.. I wrote this little code:

// My first program in C++
#include <iostream>

int main()
{
	cout << "Hello World!";
	return 0;
}

	When I compile it this way with g++ I get errors due to the compiler not 
finding the iostream file:

$ g++ -o hello hello.cc
hello.cc: In function `int main()':
hello.cc:6: `cout' undeclared (first use this function)
hello.cc:6: (Each undeclared identifier is reported only once for each 
function
   it appears in.)
$

	I do have iostream in /usr/include so I don't see why it's doing this, 
whenever I change it to #include <iostream.h> it compiles fine but gives a 
warning of using a deprecated header file:

$ g++ -o hello hello.cc
In file included from /usr/include/g++/backward/iostream.h:31,
                 from hello.cc:2:
/usr/include/g++/backward/backward_warning.h:32:2: warning: #warning This file 
includes at least one deprecated or antiquated header. Please consider using 
one of the 32 headers found in section 17.4.1.2 of the C++ standard. Examples 
include substituting the <X> header for the <X.h> header for C++ includes, or 
<sstream> instead of the deprecated header <strstream.h>. To disable this 
warning use -Wno-deprecated.
$

	Obviously it isn't that big of a deal with such a small program but when I 
move on to bigger projects that I'll want to use on different platforms other 
than FreeBSD these errors and warnings will be a major pain. Can anyone tell 
me what might be wrong with my system in order for g++ not to see the normal 
iostream header in /usr/include ?