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-rw-r--r--src/data.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/src/data.c b/src/data.c
index 11660a2483d..defcd06a2ed 100644
--- a/src/data.c
+++ b/src/data.c
@@ -34,6 +34,7 @@ along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
#include "syssignal.h"
#include "termhooks.h" /* For FRAME_KBOARD reference in y-or-n-p. */
#include "font.h"
+#include "keymap.h"
#include <float.h>
/* If IEEE_FLOATING_POINT isn't defined, default it from FLT_*. */
@@ -92,6 +93,7 @@ Lisp_Object Qbuffer;
static Lisp_Object Qchar_table, Qbool_vector, Qhash_table;
static Lisp_Object Qsubrp, Qmany, Qunevalled;
Lisp_Object Qfont_spec, Qfont_entity, Qfont_object;
+static Lisp_Object Qdefun;
Lisp_Object Qinteractive_form;
@@ -130,7 +132,7 @@ args_out_of_range_3 (Lisp_Object a1, Lisp_Object a2, Lisp_Object a3)
}
-/* Data type predicates */
+/* Data type predicates. */
DEFUN ("eq", Feq, Seq, 2, 2, 0,
doc: /* Return t if the two args are the same Lisp object. */)
@@ -656,6 +658,10 @@ determined by DEFINITION. */)
if (CONSP (XSYMBOL (symbol)->function)
&& EQ (XCAR (XSYMBOL (symbol)->function), Qautoload))
LOADHIST_ATTACH (Fcons (Qt, symbol));
+ if (!NILP (Vpurify_flag)
+ /* If `definition' is a keymap, immutable (and copying) is wrong. */
+ && !KEYMAPP (definition))
+ definition = Fpurecopy (definition);
definition = Ffset (symbol, definition);
LOADHIST_ATTACH (Fcons (Qdefun, symbol));
if (!NILP (docstring))
@@ -3085,6 +3091,8 @@ syms_of_data (void)
DEFSYM (Qbool_vector, "bool-vector");
DEFSYM (Qhash_table, "hash-table");
+ DEFSYM (Qdefun, "defun");
+
DEFSYM (Qfont_spec, "font-spec");
DEFSYM (Qfont_entity, "font-entity");
DEFSYM (Qfont_object, "font-object");