use __prefixed symbols

[Bruno Haible <bruno at clisp dot org>]

Hi,

Should function calls inside libc prefer the __ prefixed symbol aliases,
or is this a non-issue? Here is the list of nonprefixed symbol calls I
found.

accept -> __accept
inet/rcmd.c
inet/rexec.c
sunrpc/svc_tcp.c
sunrpc/svc_unix.c

fnmatch -> __fnmatch
sysdeps/generic/glob.c
sysdeps/gnu/glob64.c
sysdeps/generic/wordexp.c

fsync -> __fsync
sysdeps/generic/fdatasync.c

getpid -> __getpid
string/strfry.c

getrlimit -> __getrlimit
sysdeps/unix/bsd/ulimit.c

ioctl -> __ioctl
sysdeps/unix/bsd/gtty.c
sysdeps/unix/bsd/stty.c

iswalpha -> __iswalpha
sysdeps/generic/wcstol.c
sysdeps/generic/wcstoll.c
sysdeps/generic/wcstoul.c
sysdeps/generic/wcstoull.c

iswdigit -> __iswdigit
stdio-common/vfwscanf.c
wcsmbs/wcstod.c
wcsmbs/wcstof.c
wcsmbs/wcstold.c

iswlower -> __iswlower
posix/regex.c

iswspace -> __iswspace
stdio-common/vfwscanf.c
wcsmbs/wcstod.c
wcsmbs/wcstof.c
sysdeps/generic/wcstol.c
wcsmbs/wcstold.c
sysdeps/generic/wcstoll.c
sysdeps/generic/wcstoul.c
sysdeps/generic/wcstoull.c

iswxdigit -> __iswxdigit
stdio-common/vfwscanf.c
wcsmbs/wcstod.c
wcsmbs/wcstof.c
wcsmbs/wcstold.c

mbrtowc -> __mbrtowc
posix/regex.c

memchr -> __memchr
argp/argp-fmtstream.c
posix/fnmatch.c
stdlib/getsubopt.c
sysdeps/unix/grantpt.c
libio/iogetdelim.c
libio/iogetline.c

munmap -> __munmap
libio/fileops.c

setrlimit -> __setrlimit
sysdeps/unix/bsd/ulimit.c

sigaction -> __sigaction
sysdeps/posix/sleep.c

sigaddset -> __sigaddset
sunrpc/key_call.c
sysdeps/posix/sleep.c

sigismember -> __sigismember
sysdeps/posix/spawni.c

sigprocmask -> __sigprocmask
sysdeps/posix/sleep.c

sigsuspend -> __sigsuspend
sysdeps/posix/sleep.c

sysconf -> __sysconf
sysdeps/unix/bsd/ulimit.c

tcgetattr -> __tcgettattr
sysdeps/unix/bsd/tcflow.c

uname -> __uname
inet/getnameinfo.c

wcrtomb -> __wcrtomb
posix/regex.c

wcscoll -> __wcscoll
posix/regex.c

write -> __write
sysdeps/unix/bsd/tcflow.c

index -> strchr
string/envz.c
misc/getttyent.c