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-rw-r--r--sysdeps/powerpc/fpu/bits/mathdef.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/sysdeps/powerpc/fpu/bits/mathdef.h b/sysdeps/powerpc/fpu/bits/mathdef.h
index 71378c8458..577a596843 100644
--- a/sysdeps/powerpc/fpu/bits/mathdef.h
+++ b/sysdeps/powerpc/fpu/bits/mathdef.h
@@ -27,7 +27,9 @@
    FIXME! This file does not deal with the -fshort-double option of
    gcc! */
 
-#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