Another build break on amd64 - gdtoa

[Paul Goyette <paul%whooppee.com@localhost>]

#   compile  libc/printf.ln
CC=/test-bed/tools/bin/x86_64--netbsd-gcc 
/test-bed/tools/bin/x86_64--netbsd-lint -chapbxzFS -X 272 -d 
/test-bed/dst/usr/include  -D_LIBC -DLIBC_SCCS -DSYSLIBC_SCCS 
-D_REENTRANT -DHESIOD -DINET6 -DNLS -DYP 
-I/test-bed/src/lib/libc/include -I/test-bed/src/lib/libc 
-I/test-bed/src/sys -I/test-bed/src/lib/libc/compat/../locale 
-I/test-bed/src/lib/libc/compat/stdlib 
-I/test-bed/src/lib/libc/compat/../stdlib 
-I/test-bed/src/lib/libc/../../common/lib/libc/quad 
-I/test-bed/src/lib/libc/../../common/lib/libc/string 
-I/test-bed/src/lib/libc/../../common/lib/libc/arch/x86_64/string 
-D__DBINTERFACE_PRIVATE -I/test-bed/src/libexec/ld.elf_so 
-I/test-bed/src/lib/libc/dlfcn -I/test-bed/src/lib/libc/gdtoa 
-DNO_FENV_H -I/test-bed/src/lib/libc/arch/x86_64/gdtoa -DWITH_RUNE 
-I/test-bed/src/lib/libc -DPOSIX_MISTAKE -DCOMPAT__RES -DUSE_POLL 
-DPORTMAP -DWIDE_DOUBLE -DALL_STATE -DUSG_COMPAT -D_FORTIFY_SOURCE=2 
-i /test-bed/src/lib/libc/gdtoa/printf.c
/test-bed/src/lib/libc/gdtoa/printf.c0(135): syntax error '__float128' 
[249]
/test-bed/src/lib/libc/gdtoa/printf.c0(174): _0 undefined [99]
/test-bed/src/lib/libc/gdtoa/printf.c0(176): _1 undefined [99]
/test-bed/src/lib/libc/gdtoa/printf.c0(176): _2 undefined [99]
/test-bed/src/lib/libc/gdtoa/printf.c0(177): _3 undefined [99]
/test-bed/src/lib/libc/gdtoa/printf.c0(177): _4 undefined [99]
/test-bed/src/lib/libc/gdtoa/printf.c0(235): _0 undefined [99]
/test-bed/src/lib/libc/gdtoa/printf.c0(235): warning: conversion from 
'long' to 'int' may lose accuracy [132]
<lots more errors>

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