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-rw-r--r--math/w_log2_compat.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/math/w_log2_compat.c b/math/w_log2_compat.c
index 252fc0d86a..6d1f9f2159 100644
--- a/math/w_log2_compat.c
+++ b/math/w_log2_compat.c
@@ -22,6 +22,7 @@
 #include <math-svid-compat.h>
 
 
+#if LIBM_SVID_COMPAT
 /* wrapper log2(x) */
 double
 __log2 (double x)
@@ -43,7 +44,8 @@ __log2 (double x)
   return  __ieee754_log2 (x);
 }
 weak_alias (__log2, log2)
-#ifdef NO_LONG_DOUBLE
+# ifdef NO_LONG_DOUBLE
 strong_alias (__log2, __log2l)
 weak_alias (__log2, log2l)
+# endif
 #endif