mention GPL_MATH_EMULATE

1 files changed, 5 insertions, 4 deletions

diff --git a/share/man/man4/man4.i386/npx.4 b/share/man/man4/man4.i386/npx.4
index 38f258baed4..3ab5bc3c61c 100644
--- a/share/man/man4/man4.i386/npx.4
+++ b/share/man/man4/man4.i386/npx.4
@@ -27,7 +27,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.\"	$Id: npx.4,v 1.2 1996/08/08 17:11:27 deraadt Exp $
+.\"	$Id: npx.4,v 1.3 1997/04/21 15:40:22 kstailey Exp $
 .\"
 .Dd August 6, 1993
 .Dt NPX 4 i386
@@ -57,13 +57,14 @@ coprocessors.  The
 driver is required for proper system functioning regardless
 of whether or not a NPX is present.
 .Pp
-If there is no NPX present in the system, the "MATH_EMULATE"
-option must be defined in the kernel configuration file.
-It will provide support for the instructions normally executed
+If there is no NPX present in the system, either the "MATH_EMULATE"
+option or the "GPL_MATH_EMULATE" must be defined in the kernel configuration
+file.  It will provide support for the instructions normally executed
 by the NPX.  If there is no NPX in the system and the kernel
 is not built with math emulation, the system will not boot.
 .Sh CAVEATS
 The emulator is much slower than the NPX coprocessor.
+(The GPLed version of the emulator is somewhat faster than the non-GPLed one.)
 This will result in poor floating-point math performance
 if the emulator must be used.
 .Sh BUGS