1 files changed, 6 insertions, 0 deletions

diff --git a/src/alloc.c b/src/alloc.c
index a0725efef07..aa5849fee48 100644
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -69,6 +69,12 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 static bool valgrind_p;
 #endif
 
+#ifdef USE_LOCAL_ALLOCATORS
+# if GC_MARK_STACK != GC_MAKE_GCPROS_NOOPS
+#  error "Stack-allocated Lisp objects are not compatible with GCPROs"
+# endif
+#endif
+
 /* GC_CHECK_MARKED_OBJECTS means do sanity checks on allocated objects.
    Doable only if GC_MARK_STACK.  */
 #if ! GC_MARK_STACK