[COMMITTED] Move __isnanf128 to libc.so

diff --git a/sysdeps/ia64/float128-abi.h b/sysdeps/ia64/float128-abi.h
index 6b954cc673..8e7616bc7e 100644
--- a/sysdeps/ia64/float128-abi.h
+++ b/sysdeps/ia64/float128-abi.h
@@ -1,2 +1,3 @@ 
 /* ABI version for _Float128 ABI introduction.  */
 #define FLOAT128_VERSION GLIBC_2.26
+#define FLOAT128_VERSION_M GLIBC_2_26
diff --git a/sysdeps/ieee754/float128/Versions b/sysdeps/ieee754/float128/Versions
index 2eebc6f1b0..2be97f8564 100644
--- a/sysdeps/ieee754/float128/Versions
+++ b/sysdeps/ieee754/float128/Versions
@@ -4,9 +4,13 @@ 
 %endif
 libc {
   FLOAT128_VERSION {
+    __isnanf128;
     __strtof128_internal;
     __wcstof128_internal;
   }
+  GLIBC_2.34 {
+    __isnanf128;
+  }
   GLIBC_PRIVATE {
     # For __nanf128.
     __strtof128_nan;
@@ -30,7 +34,6 @@  libm {
     __hypotf128_finite;
     __iseqsigf128;
     __isinff128;
-    __isnanf128;
     __issignalingf128;
     __j0f128_finite;
     __j1f128_finite;
diff --git a/sysdeps/ieee754/float128/s_isnanf128.c b/sysdeps/ieee754/float128/s_isnanf128.c
index efba24059a..59f71533ce 100644
--- a/sysdeps/ieee754/float128/s_isnanf128.c
+++ b/sysdeps/ieee754/float128/s_isnanf128.c
@@ -1,2 +1,21 @@ 
+#include <shlib-compat.h>
 #include <float128_private.h>
+#if !IS_IN (libm)
+#undef __isnanl
+#define __isnanl __isnanf128_impl
+#undef weak_alias
+#define weak_alias(n,a)
+#undef mathx_hidden_def
+#define mathx_hidden_def(x)
+#endif
 #include "../ldbl-128/s_isnanl.c"
+#if !IS_IN (libm)
+#include <float128-abi.h>
+hidden_ver (__isnanf128_impl, __isnanf128)
+_weak_alias (__isnanf128_impl, isnanl)
+versioned_symbol (libc, __isnanf128_impl, __isnanf128, GLIBC_2_34);
+#if (SHLIB_COMPAT (libc, FLOAT128_VERSION_M, GLIBC_2_34))
+strong_alias (__isnanf128_impl, __isnanf128_alias)
+compat_symbol (libc, __isnanf128_alias, __isnanf128, FLOAT128_VERSION_M);
+#endif
+#endif
diff --git a/sysdeps/ieee754/ldbl-128/float128-abi.h b/sysdeps/ieee754/ldbl-128/float128-abi.h
index 3077ffc7fe..8251ce841f 100644
--- a/sysdeps/ieee754/ldbl-128/float128-abi.h
+++ b/sysdeps/ieee754/ldbl-128/float128-abi.h
@@ -1,2 +1,3 @@ 
 /* ABI version for _Float128 ABI introduction.  */
 #define FLOAT128_VERSION GLIBC_2.27
+#define FLOAT128_VERSION_M GLIBC_2_27
diff --git a/sysdeps/mach/hurd/i386/libc.abilist b/sysdeps/mach/hurd/i386/libc.abilist
index e10a286d2e..7424dc9166 100644
--- a/sysdeps/mach/hurd/i386/libc.abilist
+++ b/sysdeps/mach/hurd/i386/libc.abilist
@@ -1995,6 +1995,7 @@  GLIBC_2.25 gnu_dev_minor F
 GLIBC_2.25 strfromd F
 GLIBC_2.25 strfromf F
 GLIBC_2.25 strfroml F
+GLIBC_2.26 __isnanf128 F
 GLIBC_2.26 __strtof128_internal F
 GLIBC_2.26 __wcstof128_internal F
 GLIBC_2.26 _hurd_exec_paths F
@@ -2203,6 +2204,7 @@  GLIBC_2.33 mknod F
 GLIBC_2.33 mknodat F
 GLIBC_2.33 stat F
 GLIBC_2.33 stat64 F
+GLIBC_2.34 __isnanf128 F
 GLIBC_2.34 __libc_start_main F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
diff --git a/sysdeps/mach/hurd/i386/libm.abilist b/sysdeps/mach/hurd/i386/libm.abilist
index a19a69ce6a..bb077b9030 100644
--- a/sysdeps/mach/hurd/i386/libm.abilist
+++ b/sysdeps/mach/hurd/i386/libm.abilist
@@ -474,7 +474,6 @@  GLIBC_2.26 __gammaf128_r_finite F
 GLIBC_2.26 __hypotf128_finite F
 GLIBC_2.26 __iseqsigf128 F
 GLIBC_2.26 __isinff128 F
-GLIBC_2.26 __isnanf128 F
 GLIBC_2.26 __issignalingf128 F
 GLIBC_2.26 __j0f128_finite F
 GLIBC_2.26 __j1f128_finite F
diff --git a/sysdeps/unix/sysv/linux/i386/libc.abilist b/sysdeps/unix/sysv/linux/i386/libc.abilist
index cdb6ec501a..cfd4e55e57 100644
--- a/sysdeps/unix/sysv/linux/i386/libc.abilist
+++ b/sysdeps/unix/sysv/linux/i386/libc.abilist
@@ -2011,6 +2011,7 @@  GLIBC_2.25 getrandom F
 GLIBC_2.25 strfromd F
 GLIBC_2.25 strfromf F
 GLIBC_2.25 strfroml F
+GLIBC_2.26 __isnanf128 F
 GLIBC_2.26 __strtof128_internal F
 GLIBC_2.26 __wcstof128_internal F
 GLIBC_2.26 preadv2 F
@@ -2250,6 +2251,7 @@  GLIBC_2.33 mknod F
 GLIBC_2.33 mknodat F
 GLIBC_2.33 stat F
 GLIBC_2.33 stat64 F
+GLIBC_2.34 __isnanf128 F
 GLIBC_2.34 __libc_start_main F
 GLIBC_2.34 pthread_kill F
 GLIBC_2.4 __confstr_chk F
diff --git a/sysdeps/unix/sysv/linux/i386/libm.abilist b/sysdeps/unix/sysv/linux/i386/libm.abilist
index 0ab740dd97..335b5e7aa2 100644
--- a/sysdeps/unix/sysv/linux/i386/libm.abilist
+++ b/sysdeps/unix/sysv/linux/i386/libm.abilist
@@ -481,7 +481,6 @@  GLIBC_2.26 __gammaf128_r_finite F
 GLIBC_2.26 __hypotf128_finite F
 GLIBC_2.26 __iseqsigf128 F
 GLIBC_2.26 __isinff128 F
-GLIBC_2.26 __isnanf128 F
 GLIBC_2.26 __issignalingf128 F
 GLIBC_2.26 __j0f128_finite F
 GLIBC_2.26 __j1f128_finite F
diff --git a/sysdeps/unix/sysv/linux/ia64/libc.abilist b/sysdeps/unix/sysv/linux/ia64/libc.abilist
index d0424a8b1a..426e15f4f6 100644
--- a/sysdeps/unix/sysv/linux/ia64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/ia64/libc.abilist
@@ -1873,6 +1873,7 @@  GLIBC_2.25 getrandom F
 GLIBC_2.25 strfromd F
 GLIBC_2.25 strfromf F
 GLIBC_2.25 strfroml F
+GLIBC_2.26 __isnanf128 F
 GLIBC_2.26 __strtof128_internal F
 GLIBC_2.26 __wcstof128_internal F
 GLIBC_2.26 preadv2 F
@@ -2107,6 +2108,7 @@  GLIBC_2.33 mknod F
 GLIBC_2.33 mknodat F
 GLIBC_2.33 stat F
 GLIBC_2.33 stat64 F
+GLIBC_2.34 __isnanf128 F
 GLIBC_2.34 __libc_start_main F
 GLIBC_2.34 pthread_kill F
 GLIBC_2.4 __confstr_chk F
diff --git a/sysdeps/unix/sysv/linux/ia64/libm.abilist b/sysdeps/unix/sysv/linux/ia64/libm.abilist
index c8e8fd7142..ec82b83e6f 100644
--- a/sysdeps/unix/sysv/linux/ia64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/ia64/libm.abilist
@@ -411,7 +411,6 @@  GLIBC_2.26 __gammaf128_r_finite F
 GLIBC_2.26 __hypotf128_finite F
 GLIBC_2.26 __iseqsigf128 F
 GLIBC_2.26 __isinff128 F
-GLIBC_2.26 __isnanf128 F
 GLIBC_2.26 __issignalingf128 F
 GLIBC_2.26 __j0f128_finite F
 GLIBC_2.26 __j1f128_finite F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/float128-abi.h b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/float128-abi.h
index 6b954cc673..8e7616bc7e 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/float128-abi.h
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/float128-abi.h
@@ -1,2 +1,3 @@ 
 /* ABI version for _Float128 ABI introduction.  */
 #define FLOAT128_VERSION GLIBC_2.26
+#define FLOAT128_VERSION_M GLIBC_2_26
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist
index d99afb2f60..ec9ae25539 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist
@@ -2184,6 +2184,7 @@  GLIBC_2.25 getrandom F
 GLIBC_2.25 strfromd F
 GLIBC_2.25 strfromf F
 GLIBC_2.25 strfroml F
+GLIBC_2.26 __isnanf128 F
 GLIBC_2.26 __strtof128_internal F
 GLIBC_2.26 __wcstof128_internal F
 GLIBC_2.26 preadv2 F
@@ -2367,5 +2368,6 @@  GLIBC_2.33 mknod F
 GLIBC_2.33 mknodat F
 GLIBC_2.33 stat F
 GLIBC_2.33 stat64 F
+GLIBC_2.34 __isnanf128 F
 GLIBC_2.34 __libc_start_main F
 GLIBC_2.34 pthread_kill F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libm.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libm.abilist
index 4f8d3c1191..8266bc32f4 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libm.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libm.abilist
@@ -478,7 +478,6 @@  GLIBC_2.26 __gammaf128_r_finite F
 GLIBC_2.26 __hypotf128_finite F
 GLIBC_2.26 __iseqsigf128 F
 GLIBC_2.26 __isinff128 F
-GLIBC_2.26 __isnanf128 F
 GLIBC_2.26 __issignalingf128 F
 GLIBC_2.26 __j0f128_finite F
 GLIBC_2.26 __j1f128_finite F
diff --git a/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist b/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
index dde107a249..da0974f11a 100644
--- a/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
@@ -1854,6 +1854,7 @@  GLIBC_2.25 getrandom F
 GLIBC_2.25 strfromd F
 GLIBC_2.25 strfromf F
 GLIBC_2.25 strfroml F
+GLIBC_2.26 __isnanf128 F
 GLIBC_2.26 __strtof128_internal F
 GLIBC_2.26 __wcstof128_internal F
 GLIBC_2.26 preadv2 F
@@ -2089,6 +2090,7 @@  GLIBC_2.33 mknod F
 GLIBC_2.33 mknodat F
 GLIBC_2.33 stat F
 GLIBC_2.33 stat64 F
+GLIBC_2.34 __isnanf128 F
 GLIBC_2.34 __libc_start_main F
 GLIBC_2.34 pthread_kill F
 GLIBC_2.4 __confstr_chk F
diff --git a/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist b/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist
index 89c4ac484d..b6a088ca64 100644
--- a/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/64/libm.abilist
@@ -472,7 +472,6 @@  GLIBC_2.26 __gammaf128_r_finite F
 GLIBC_2.26 __hypotf128_finite F
 GLIBC_2.26 __iseqsigf128 F
 GLIBC_2.26 __isinff128 F
-GLIBC_2.26 __isnanf128 F
 GLIBC_2.26 __issignalingf128 F
 GLIBC_2.26 __j0f128_finite F
 GLIBC_2.26 __j1f128_finite F
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
index dcea87ca22..d3d155e7c0 100644
--- a/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
@@ -2107,6 +2107,7 @@  GLIBC_2.25 getrandom F
 GLIBC_2.25 strfromd F
 GLIBC_2.25 strfromf F
 GLIBC_2.25 strfroml F
+GLIBC_2.26 __isnanf128 F
 GLIBC_2.26 __strtof128_internal F
 GLIBC_2.26 __wcstof128_internal F
 GLIBC_2.26 preadv2 F
@@ -2186,5 +2187,6 @@  GLIBC_2.33 mknod F
 GLIBC_2.33 mknodat F
 GLIBC_2.33 stat F
 GLIBC_2.33 stat64 F
+GLIBC_2.34 __isnanf128 F
 GLIBC_2.34 __libc_start_main F
 GLIBC_2.34 pthread_kill F
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist
index d3c9cec71a..dfb5a7fa79 100644
--- a/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist
@@ -472,7 +472,6 @@  GLIBC_2.26 __gammaf128_r_finite F
 GLIBC_2.26 __hypotf128_finite F
 GLIBC_2.26 __iseqsigf128 F
 GLIBC_2.26 __isinff128 F
-GLIBC_2.26 __isnanf128 F
 GLIBC_2.26 __issignalingf128 F
 GLIBC_2.26 __j0f128_finite F
 GLIBC_2.26 __j1f128_finite F
diff --git a/sysdeps/x86/float128-abi.h b/sysdeps/x86/float128-abi.h
index 6b954cc673..8e7616bc7e 100644
--- a/sysdeps/x86/float128-abi.h
+++ b/sysdeps/x86/float128-abi.h
@@ -1,2 +1,3 @@ 
 /* ABI version for _Float128 ABI introduction.  */
 #define FLOAT128_VERSION GLIBC_2.26
+#define FLOAT128_VERSION_M GLIBC_2_26