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, 4 insertions, 4 deletions

diff --git a/sysdeps/ieee754/ldbl-128/e_remainderl.c b/sysdeps/ieee754/ldbl-128/e_remainderl.c
index 88df6f54c2..b8ae3ff240 100644
--- a/sysdeps/ieee754/ldbl-128/e_remainderl.c
+++ b/sysdeps/ieee754/ldbl-128/e_remainderl.c
@@ -24,15 +24,15 @@
 #include <math.h>
 #include <math_private.h>
 
-static const long double zero = 0.0L;
+static const _Float128 zero = 0.0L;
 
 
-long double
-__ieee754_remainderl(long double x, long double p)
+_Float128
+__ieee754_remainderl(_Float128 x, _Float128 p)
 {
 	int64_t hx,hp;
 	u_int64_t sx,lx,lp;
-	long double p_half;
+	_Float128 p_half;
 
 	GET_LDOUBLE_WORDS64(hx,lx,x);
 	GET_LDOUBLE_WORDS64(hp,lp,p);