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-rw-r--r--src/lisp.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/lisp.h b/src/lisp.h
index 1f952714079..6dfc06ba0cb 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -282,8 +282,9 @@ Lisp_Object;
#ifndef XPNTR
#ifdef HAVE_SHM
/* In this representation, data is found in two widely separated segments. */
+extern int pure_size;
#define XPNTR(a) \
- (XUINT (a) | (XUINT (a) > PURESIZE ? DATA_SEG_BITS : PURE_SEG_BITS))
+ (XUINT (a) | (XUINT (a) > pure_size ? DATA_SEG_BITS : PURE_SEG_BITS))
#else /* not HAVE_SHM */
#ifdef DATA_SEG_BITS
/* This case is used for the rt-pc.