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-rw-r--r--src/s/msdos.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/s/msdos.h b/src/s/msdos.h
index 71794be5760..72f5b1b0861 100644
--- a/src/s/msdos.h
+++ b/src/s/msdos.h
@@ -275,3 +275,4 @@ You lose; /* Emacs for DOS must be compiled with DJGPP */
jmp_buf. */
#define GC_SETJMP_WORKS 1
+#define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS