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-rw-r--r--include/fenv.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/fenv.h b/include/fenv.h
index 59d4c3f63c..67ef385bbf 100644
--- a/include/fenv.h
+++ b/include/fenv.h
@@ -1,6 +1,7 @@
 #ifndef _FENV_H
 #include <math/fenv.h>
 
+#ifndef _ISOMAC
 /* Now define the internal interfaces.  */
 
 extern int __feclearexcept (int __excepts);
@@ -19,5 +20,6 @@ libm_hidden_proto (fesetround)
 libm_hidden_proto (feholdexcept)
 libm_hidden_proto (feupdateenv)
 libm_hidden_proto (fetestexcept)
+#endif
 
 #endif