diff --git a/ChangeLog b/ChangeLog
index c85af69b14..fd9ba11e6f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,16 @@
 2018-11-12  Joseph Myers  <joseph@codesourcery.com>
 
+	* sysdeps/i386/i686/fpu/multiarch/e_expf.c [SHARED]: Use __THROW
+	with __hidden_ver1 call.
+	* sysdeps/i386/i686/fpu/multiarch/e_log2f.c [SHARED]: Likewise.
+	* sysdeps/i386/i686/fpu/multiarch/e_logf.c [SHARED]: Likewise.
+	* sysdeps/i386/i686/fpu/multiarch/s_cosf.c: Include <math.h>.
+	(__cosf): Do not declare here.
+	* sysdeps/i386/i686/fpu/multiarch/s_sincosf.c: Include <math.h>.
+	(__sincosf): Do not declare here.
+	* sysdeps/i386/i686/fpu/multiarch/s_sinf.c: Include <math.h>.
+	(__sinf): Do not declare here.
+
 	* sysdeps/ia64/fpu/sfp-machine.h (__LITTLE_ENDIAN): Remove.
 	(__BIG_ENDIAN): Likewise.
 	(__BYTE_ORDER): Likewise.
diff --git a/sysdeps/i386/i686/fpu/multiarch/e_expf.c b/sysdeps/i386/i686/fpu/multiarch/e_expf.c
index 1f7c35701b..d11ca309a7 100644
--- a/sysdeps/i386/i686/fpu/multiarch/e_expf.c
+++ b/sysdeps/i386/i686/fpu/multiarch/e_expf.c
@@ -26,7 +26,7 @@ libc_ifunc_redirected (__redirect_expf, __expf, IFUNC_SELECTOR ());
 #include <libm-alias-float.h>
 #ifdef SHARED
 __hidden_ver1 (__expf_ia32, __GI___expf, __redirect_expf)
-  __attribute__ ((visibility ("hidden")));
+  __attribute__ ((visibility ("hidden"))) __THROW;
 
 # include <shlib-compat.h>
 versioned_symbol (libm, __expf, expf, GLIBC_2_27);
diff --git a/sysdeps/i386/i686/fpu/multiarch/e_log2f.c b/sysdeps/i386/i686/fpu/multiarch/e_log2f.c
index 3dacaa609e..9c11536604 100644
--- a/sysdeps/i386/i686/fpu/multiarch/e_log2f.c
+++ b/sysdeps/i386/i686/fpu/multiarch/e_log2f.c
@@ -26,7 +26,7 @@ libc_ifunc_redirected (__redirect_log2f, __log2f, IFUNC_SELECTOR ());
 #include <libm-alias-float.h>
 #ifdef SHARED
 __hidden_ver1 (__log2f_ia32, __GI___log2f, __redirect_log2f)
-  __attribute__ ((visibility ("hidden")));
+  __attribute__ ((visibility ("hidden"))) __THROW;
 
 # include <shlib-compat.h>
 versioned_symbol (libm, __log2f, log2f, GLIBC_2_27);
diff --git a/sysdeps/i386/i686/fpu/multiarch/e_logf.c b/sysdeps/i386/i686/fpu/multiarch/e_logf.c
index 1ce90e2e05..070e8b7175 100644
--- a/sysdeps/i386/i686/fpu/multiarch/e_logf.c
+++ b/sysdeps/i386/i686/fpu/multiarch/e_logf.c
@@ -26,7 +26,7 @@ libc_ifunc_redirected (__redirect_logf, __logf, IFUNC_SELECTOR ());
 #include <libm-alias-float.h>
 #ifdef SHARED
 __hidden_ver1 (__logf_ia32, __GI___logf, __redirect_logf)
-  __attribute__ ((visibility ("hidden")));
+  __attribute__ ((visibility ("hidden"))) __THROW;
 
 # include <shlib-compat.h>
 versioned_symbol (libm, __logf, logf, GLIBC_2_27);
diff --git a/sysdeps/i386/i686/fpu/multiarch/s_cosf.c b/sysdeps/i386/i686/fpu/multiarch/s_cosf.c
index a4556a478d..52951186cc 100644
--- a/sysdeps/i386/i686/fpu/multiarch/s_cosf.c
+++ b/sysdeps/i386/i686/fpu/multiarch/s_cosf.c
@@ -18,10 +18,10 @@
 
 #include <init-arch.h>
 #include <libm-alias-float.h>
+#include <math.h>
 
 extern float __cosf_sse2 (float);
 extern float __cosf_ia32 (float);
-float __cosf (float);
 
 libm_ifunc (__cosf, HAS_CPU_FEATURE (SSE2) ? __cosf_sse2 : __cosf_ia32);
 libm_alias_float (__cos, cos);
diff --git a/sysdeps/i386/i686/fpu/multiarch/s_sincosf.c b/sysdeps/i386/i686/fpu/multiarch/s_sincosf.c
index 5f21f5c0ed..164c97ba7b 100644
--- a/sysdeps/i386/i686/fpu/multiarch/s_sincosf.c
+++ b/sysdeps/i386/i686/fpu/multiarch/s_sincosf.c
@@ -18,10 +18,10 @@
 
 #include <init-arch.h>
 #include <libm-alias-float.h>
+#include <math.h>
 
 extern void __sincosf_sse2 (float, float *, float *);
 extern void __sincosf_ia32 (float, float *, float *);
-void __sincosf (float, float *, float *);
 
 libm_ifunc (__sincosf,
 	    HAS_CPU_FEATURE (SSE2) ? __sincosf_sse2 : __sincosf_ia32);
diff --git a/sysdeps/i386/i686/fpu/multiarch/s_sinf.c b/sysdeps/i386/i686/fpu/multiarch/s_sinf.c
index 80a7ffaa1e..c69976b2ec 100644
--- a/sysdeps/i386/i686/fpu/multiarch/s_sinf.c
+++ b/sysdeps/i386/i686/fpu/multiarch/s_sinf.c
@@ -18,10 +18,10 @@
 
 #include <init-arch.h>
 #include <libm-alias-float.h>
+#include <math.h>
 
 extern float __sinf_sse2 (float);
 extern float __sinf_ia32 (float);
-float __sinf (float);
 
 libm_ifunc (__sinf, HAS_CPU_FEATURE (SSE2) ? __sinf_sse2 : __sinf_ia32);
 libm_alias_float (__sin, sin);