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-rw-r--r--src/m/iris4d.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/m/iris4d.h b/src/m/iris4d.h
index 89d022f765d..45ad2f7c2f2 100644
--- a/src/m/iris4d.h
+++ b/src/m/iris4d.h
@@ -191,3 +191,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#define XMARKBIT(a) ((a) < 0)
#define XSETMARKBIT(a,b) ((a) = ((a) & ~MARKBIT) | ((b) ? MARKBIT : 0))
#define XUNMARK(a) ((a) = (((unsigned)(a) << INTBITS-GCTYPEBITS-VALBITS) >> INTBITS-GCTYPEBITS-VALBITS))
+
+/* Turn off some "helpful" error checks for type mismatches
+ that we can't fix without breaking other machines. */
+#define C_SWITCH_MACHINE -cckr