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-rw-r--r--unix/mpconfigport.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/unix/mpconfigport.h b/unix/mpconfigport.h
index 3426ae44fe..1559bdb359 100644
--- a/unix/mpconfigport.h
+++ b/unix/mpconfigport.h
@@ -53,7 +53,9 @@
#define MICROPY_ERROR_REPORTING (MICROPY_ERROR_REPORTING_DETAILED)
// Define to 1 to use untested inefficient GC helper implementation
// (if more efficient arch-specific one is not available).
+#ifndef MICROPY_GCREGS_SETJMP
#define MICROPY_GCREGS_SETJMP (0)
+#endif
extern const struct _mp_obj_module_t mp_module_os;
extern const struct _mp_obj_module_t mp_module_time;