Added dependencies which are linked to buildlink3.mk. Removed glu from
buildlink3.mk, as the resulting library doesn't link to it. patches/patch-{a,b}
were commited upstream - removed. Added patch to fix usb.h include on NetBSD.
From NEWS:
* Tons of bug fixes
* Added deprecated, but working Joystick API.
* Added new constant GLUT_INIT_STATE for glutGet() to check if freeglut is
already initialized.
* Added new API entry for full-screen mode
void glutFullScreenToggle( void );
with a related new constant GLUT_FULL_SCREEN for glutGet().
* Added new API entry to de-initialize freeglut:
void glutExit( void );
* Added more special keys: GLUT_KEY_NUM_LOCK, GLUT_KEY_BEGIN GLUT_KEY_DELETE
* Added support for windows without captions and/or borders via two new
constants GLUT_CAPTIONLESS and GLUT_BORDERLESS for glutInitDisplayMode
(currently works for Windows only).
* Added support for multisampling: The number of samples per pixel to use
when GLUT_MULTISAMPLE is specified in glutInitDisplayMode() can be set via
glutSetOption() with parameter GLUT_MULTISAMPLE now. glutGet() with the
same token retrieves that value. The possible number of samples per pixels
can be queried via the new API entry
int *glutGetModeValues( GLenum mode, int *size );
with mode GLUT_MULTISAMPLE. (glutGetModeValues() currently only works for
X11)
* Added new constant GLUT_AUX for glutSetOption() to set the number of
auxiliary buffers. The possible number of auxiliary buffers can be
queried via glutGetModeValues with mode GLUT_AUX.
* Added support for versioned (i.e. 3.0) OpenGL contexts: New API entries
void glutInitContextVersion( int majorVersion, int minorVersion );
void glutInitContextFlags( int flags );
with related new constants GLUT_DEBUG and GLUT_FORWARD_COMPATIBLE for
the latter API entry. Added new constants GLUT_INIT_MAJOR_VERSION,
GLUT_INIT_MINOR_VERSION and GLUT_INIT_FLAGS for glutGet().
