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-rw-r--r--include/math.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/math.h b/include/math.h
index eb29ef1a56..3934880171 100644
--- a/include/math.h
+++ b/include/math.h
@@ -31,4 +31,8 @@ libm_hidden_proto (__expl)
 libm_hidden_proto (__expm1l)
 # endif
 
+extern int __isinf_ns (double);
+extern int __isinf_nsf (float);
+extern int __isinf_nsl (long double);
+
 #endif