5 files changed, 27 insertions, 9 deletions
diff --git a/sysdeps/generic/math-type-macros-double.h b/sysdeps/generic/math-type-macros-double.h
index e978f9090c..a02c0349e8 100644
--- a/sysdeps/generic/math-type-macros-double.h
+++ b/sysdeps/generic/math-type-macros-double.h
@@ -33,6 +33,10 @@
 # define declare_mgen_alias(from, to) libm_alias_double (from, to)
 #endif
 
+#ifndef declare_mgen_alias_r
+# define declare_mgen_alias_r(from, to) libm_alias_double_r (from, to, _r)
+#endif
+
 /* Supply the generic macros.  */
 #include <math-type-macros.h>
 
diff --git a/sysdeps/generic/math-type-macros-float.h b/sysdeps/generic/math-type-macros-float.h
index b23789f678..53616cdeec 100644
--- a/sysdeps/generic/math-type-macros-float.h
+++ b/sysdeps/generic/math-type-macros-float.h
@@ -36,6 +36,10 @@
 # define declare_mgen_alias(from, to) libm_alias_float (from, to)
 #endif
 
+#ifndef declare_mgen_alias_r
+# define declare_mgen_alias_r(from, to) libm_alias_float_r (from, to, _r)
+#endif
+
 /* Supply the generic macros.  */
 #include <math-type-macros.h>
 
diff --git a/sysdeps/generic/math-type-macros-float128.h b/sysdeps/generic/math-type-macros-float128.h
index 3e69c17f65..a66f5b605d 100644
--- a/sysdeps/generic/math-type-macros-float128.h
+++ b/sysdeps/generic/math-type-macros-float128.h
@@ -38,6 +38,10 @@
 # define declare_mgen_alias(from, to) libm_alias_float128 (from, to)
 #endif
 
+#ifndef declare_mgen_alias_r
+# define declare_mgen_alias_r(from, to) libm_alias_float128_r (from, to, _r)
+#endif
+
 /* Supply the generic macros.  */
 #include <math-type-macros.h>
 
diff --git a/sysdeps/generic/math-type-macros-ldouble.h b/sysdeps/generic/math-type-macros-ldouble.h
index 750bae718a..234e33ed9a 100644
--- a/sysdeps/generic/math-type-macros-ldouble.h
+++ b/sysdeps/generic/math-type-macros-ldouble.h
@@ -33,6 +33,10 @@
 # define declare_mgen_alias(from, to) libm_alias_ldouble (from, to)
 #endif
 
+#ifndef declare_mgen_alias_r
+# define declare_mgen_alias_r(from, to) libm_alias_ldouble_r (from, to, _r)
+#endif
+
 /* Supply the generic macros.  */
 #include <math-type-macros.h>
 
diff --git a/sysdeps/generic/math-type-macros.h b/sysdeps/generic/math-type-macros.h
index 6aaa2335b9..bbd9c0e593 100644
--- a/sysdeps/generic/math-type-macros.h
+++ b/sysdeps/generic/math-type-macros.h
@@ -34,12 +34,13 @@
 		converts a string into the appropriate FLOAT nan
 		value.
 
-  Optionally, these headers may inject a non-standard
-  definition for the following:
-
   declare_mgen_alias(from,to)
       This exposes the appropriate symbol(s) for a
-      function f of type FLOAT.  */
+      function f of type FLOAT.
+
+  declare_mgen_alias_r(from,to)
+      This exposes the appropriate symbol(s) for a
+      function f_r of type FLOAT.  */
 
 #ifndef M_PFX
 # error "M_PFX must be defined."
@@ -59,6 +60,12 @@
 #ifndef CFLOAT
 # error "CFLOAT must be defined."
 #endif
+#ifndef declare_mgen_alias
+# error "declare_mgen_alias must be defined."
+#endif
+#ifndef declare_mgen_alias_r
+# error "declare_mgen_alias_r must be defined."
+#endif
 
 #define __M_CONCAT(a,b) a ## b
 #define __M_CONCATX(a,b) __M_CONCAT(a,b)
@@ -102,9 +109,4 @@
 # define M_DECL_FUNC(f) M_SUF (f)
 #endif
 
-/* If the type does not declare special aliasing, use the default.  */
-#ifndef declare_mgen_alias
-# define declare_mgen_alias(from, to) weak_alias (M_SUF (from), M_SUF (to))
-#endif
-
 #endif /* _MATH_TYPE_MACROS */