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-rw-r--r--math/bits/cmathcalls.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/math/bits/cmathcalls.h b/math/bits/cmathcalls.h
index db7f69c72e..9c7fdbe9e3 100644
--- a/math/bits/cmathcalls.h
+++ b/math/bits/cmathcalls.h
@@ -132,7 +132,8 @@ __MATHDECL (_Mdouble_,creal, (_Mdouble_complex_ __z));
 /* Now some optimized versions.  GCC has handy notations for these
    functions.  Recent GCC handles these as builtin functions so does
    not need inlines.  */
-#if defined __GNUC__ && !__GNUC_PREREQ (2, 97) && defined __OPTIMIZE__
+#if defined __GNUC__ && !__GNUC_PREREQ (2, 97) && defined __OPTIMIZE__ \
+    && defined __extern_inline
 
 /* Imaginary part of Z.  */
 __extern_inline _Mdouble_