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-rw-r--r--sysdeps/sparc/fpu/bits/mathdef.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/sysdeps/sparc/fpu/bits/mathdef.h b/sysdeps/sparc/fpu/bits/mathdef.h
index c58167c..9477790 100644
--- a/sysdeps/sparc/fpu/bits/mathdef.h
+++ b/sysdeps/sparc/fpu/bits/mathdef.h
@@ -25,7 +25,9 @@
/* FIXME! This file describes properties of the compiler, not the machine;
it should not be part of libc! */
-#if defined __USE_ISOC99 && defined _MATH_H
+#if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
+# define _MATH_H_MATHDEF 1
+
# ifdef __GNUC__
# if __STDC__ == 1