%ifndef IS_PXELINUX won't do much good... %if IS_PXELINUX == 0 is correct

diff --git a/bootsect.inc b/bootsect.inc
index 66e1886..a2137ec 100644 (file)
--- a/bootsect.inc
+++ b/bootsect.inc
@@ -136,7 +136,7 @@ replace_bootstrap:
                mov [es:di+12],esi      ; New ESI
                mov [es:di+6],bx        ; New DS
 
-%ifndef IS_PXELINUX
+%if IS_PXELINUX == 0
                ; DON'T DO THIS FOR PXELINUX...
                ; For PXE, ES:BX -> PXENV+, and this would corrupt
                ; that use.