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-rw-r--r--sysdeps/arm/math_private.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/sysdeps/arm/math_private.h b/sysdeps/arm/math_private.h
index c175b15601..d39e9ee24a 100644
--- a/sysdeps/arm/math_private.h
+++ b/sysdeps/arm/math_private.h
@@ -1,6 +1,10 @@
 #ifndef ARM_MATH_PRIVATE_H
 #define ARM_MATH_PRIVATE_H 1
 
+/* Enable __finitel, __isinfl, and __isnanl for binary compatibility
+   when built without long double support. */
+#define LDBL_CLASSIFY_COMPAT 1
+
 #include "fenv_private.h"
 #include_next <math_private.h>