[glibc/azanella/clang] math: Handle fabsf128 intra PLT for !__USE_EXTERN_INLINES

[Adhemerval Zanella <azanella@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=3a414aa7d329d5025ccf5bda0676ac4d88072174

commit 3a414aa7d329d5025ccf5bda0676ac4d88072174
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date:   Tue Aug 2 15:42:14 2022 -0300

    math: Handle fabsf128 intra PLT for !__USE_EXTERN_INLINES
    
    If compiler does not support __USE_EXTERN_INLINES we need to route
    fabsf128 call to an internal symbol.

Diff:
---
 include/math.h                        | 11 ++++++++---
 sysdeps/ieee754/float128/s_fabsf128.c |  3 +++
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/include/math.h b/include/math.h
index fa11a710a6..262c302728 100644
--- a/include/math.h
+++ b/include/math.h
@@ -109,9 +109,11 @@ __issignalingf (float x)
 
 # if __HAVE_DISTINCT_FLOAT128
 
+#  ifdef __USE_EXTERN_INLINES
+
 /* __builtin_isinf_sign is broken in GCC < 7 for float128.  */
-#  if ! __GNUC_PREREQ (7, 0)
-#   include <ieee754_float128.h>
+#   if ! __GNUC_PREREQ (7, 0)
+#    include <ieee754_float128.h>
 extern inline int
 __isinff128 (_Float128 x)
 {
@@ -121,13 +123,16 @@ __isinff128 (_Float128 x)
   lx |= -lx;
   return ~(lx >> 63) & (hx >> 62);
 }
-#  endif
+#   endif
 
 extern inline _Float128
 fabsf128 (_Float128 x)
 {
   return __builtin_fabsf128 (x);
 }
+#  else
+libm_hidden_proto (fabsf128)
+#  endif
 # endif
 
 # if !(defined __FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0)
diff --git a/sysdeps/ieee754/float128/s_fabsf128.c b/sysdeps/ieee754/float128/s_fabsf128.c
index 79ba47c3fd..d877b0214f 100644
--- a/sysdeps/ieee754/float128/s_fabsf128.c
+++ b/sysdeps/ieee754/float128/s_fabsf128.c
@@ -1,2 +1,5 @@
 #include <float128_private.h>
 #include "../ldbl-128/s_fabsl.c"
+#ifndef __USE_EXTERN_INLINES
+libm_hidden_def (fabsf128)
+#endif