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-rw-r--r--math/tgmath.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/math/tgmath.h b/math/tgmath.h
index 9868353c46..3d7b0998df 100644
--- a/math/tgmath.h
+++ b/math/tgmath.h
@@ -921,7 +921,9 @@
 
 /* Like ilogb, but returning long int.  */
 # define llogb(Val) __TGMATH_UNARY_REAL_RET_ONLY (Val, llogb)
+#endif
 
+#if __GLIBC_USE (IEC_60559_BFP_EXT)
 /* Return value with maximum magnitude.  */
 # define fmaxmag(Val1, Val2) __TGMATH_BINARY_REAL_ONLY (Val1, Val2, fmaxmag)