preproc: %while ... %endwhile looploops

First user of the new loop infrastructure: a %while[n][cond] loop;
supports anything that the %if/%elif directives support, too.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/asm/pptok.dat b/asm/pptok.dat
index d2f361c8..8b90c5b2 100644
--- a/asm/pptok.dat
+++ b/asm/pptok.dat
@@ -39,6 +39,7 @@
 # Condition stems. %if MUST BE FIRST in this list.
 %if*
 %elif*
+%while*
 
 # Condition tests
 *
@@ -99,3 +100,4 @@
 %undefalias
 %use
 %warning
+%endwhile