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, 3 insertions, 3 deletions

diff --git a/sysdeps/ieee754/ldbl-128/e_fmodl.c b/sysdeps/ieee754/ldbl-128/e_fmodl.c
index 33280030f1..f27cd4f8ff 100644
--- a/sysdeps/ieee754/ldbl-128/e_fmodl.c
+++ b/sysdeps/ieee754/ldbl-128/e_fmodl.c
@@ -21,10 +21,10 @@
 #include <math.h>
 #include <math_private.h>
 
-static const long double one = 1.0, Zero[] = {0.0, -0.0,};
+static const _Float128 one = 1.0, Zero[] = {0.0, -0.0,};
 
-long double
-__ieee754_fmodl (long double x, long double y)
+_Float128
+__ieee754_fmodl (_Float128 x, _Float128 y)
 {
 	int64_t n,hx,hy,hz,ix,iy,sx,i;
 	u_int64_t lx,ly,lz;