ldbl-128: Rename 'long double' to '_Float128'

Add a layer of macro indirection for long double files
which need to be built using another typename.  Likewise,
add the L(num) macro used in a later patch to override
real constants.

These macros are only defined through the ldbl-128
math_ldbl.h header, thereby implicitly restricting
these macros to machines which back long double
with an IEEE binary128 format.

Likewise, appropriate changes are made for the few
files which indirectly include such ldbl-128 files.

These changes produce identical binaries for s390x,
aarch64, and ppc64.

1 files changed, 7 insertions, 7 deletions

diff --git a/sysdeps/ieee754/ldbl-128/s_cbrtl.c b/sysdeps/ieee754/ldbl-128/s_cbrtl.c
index c3ae96830e..d93684e50e 100644
--- a/sysdeps/ieee754/ldbl-128/s_cbrtl.c
+++ b/sysdeps/ieee754/ldbl-128/s_cbrtl.c
@@ -57,17 +57,17 @@ Adapted for glibc October, 2001.
 #include <math.h>
 #include <math_private.h>
 
-static const long double CBRT2 = 1.259921049894873164767210607278228350570251L;
-static const long double CBRT4 = 1.587401051968199474751705639272308260391493L;
-static const long double CBRT2I = 0.7937005259840997373758528196361541301957467L;
-static const long double CBRT4I = 0.6299605249474365823836053036391141752851257L;
+static const _Float128 CBRT2 = 1.259921049894873164767210607278228350570251L;
+static const _Float128 CBRT4 = 1.587401051968199474751705639272308260391493L;
+static const _Float128 CBRT2I = 0.7937005259840997373758528196361541301957467L;
+static const _Float128 CBRT4I = 0.6299605249474365823836053036391141752851257L;
 
 
-long double
-__cbrtl (long double x)
+_Float128
+__cbrtl (_Float128 x)
 {
   int e, rem, sign;
-  long double z;
+  _Float128 z;
 
   if (!isfinite (x))
     return x + x;