Add Hurd signal and error constants.

* libguile/cpp-E.syms (EAUTH, EBACKGROUND): New definitions.
  (EBADRPC, ED, EDIED, EFTYPE, EGRATUITOUS, EGREGIOUS): Likewise.
  (EIEIO, ENEEDAUTH, EPROCLIM, EPROCUNAVAIL): Likewise.
  (EPROGMISMATCH, EPROGUNAVAIL, ERPCMISMATCH): Likewise.
* libguile/cpp-SIG.syms (SIGEMT, SIGEV_MAX_SIZE): Likewise.
  (SIGEV_PAD_SIZE, SIGINFO, SIGLOST): Likewise.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

libguile/cpp-E.syms

@@ -6,11 +6,14 @@ EADV
 EAFNOSUPPORT
 EAGAIN
 EALREADY
+EAUTH
+EBACKGROUND
 EBADE
 EBADF
 EBADFD
 EBADMSG
 EBADR
+EBADRPC
 EBADRQC
 EBADSLT
 EBFONT
@@ -22,19 +25,25 @@ ECOMM
 ECONNABORTED
 ECONNREFUSED
 ECONNRESET
+ED
 EDEADLK
 EDEADLOCK
 EDESTADDRREQ
+EDIED
 EDOM
 EDOTDOT
 EDQUOT
 EEXIST
 EFAULT
 EFBIG
+EFTYPE
+EGRATUITOUS
+EGREGIOUS
 EHOSTDOWN
 EHOSTUNREACH
 EHWPOISON
 EIDRM
+EIEIO
 EILSEQ
 EINPROGRESS
 EINTR
@@ -64,6 +73,7 @@ EMSGSIZE
 EMULTIHOP
 ENAMETOOLONG
 ENAVAIL
+ENEEDAUTH
 ENETDOWN
 ENETRESET
 ENETUNREACH
@@ -105,6 +115,10 @@ EOWNERDEAD
 EPERM
 EPFNOSUPPORT
 EPIPE
+EPROCLIM
+EPROCUNAVAIL
+EPROGMISMATCH
+EPROGUNAVAIL
 EPROTO
 EPROTONOSUPPORT
 EPROTOTYPE
@@ -115,6 +129,7 @@ EREMOTEIO
 ERESTART
 ERFKILL
 EROFS
+ERPCMISMATCH
 ESHUTDOWN
 ESOCKTNOSUPPORT
 ESPIPE

libguile/cpp-SIG.syms

@@ -5,17 +5,22 @@ SIGBUS
 SIGCHLD
 SIGCLD
 SIGCONT
+SIGEMT
+SIGEV_MAX_SIZE
 SIGEV_NONE
+SIGEV_PAD_SIZE
 SIGEV_SIGNAL
 SIGEV_THREAD
 SIGEV_THREAD_ID
 SIGFPE
 SIGHUP
 SIGILL
+SIGINFO
 SIGINT
 SIGIO
 SIGIOT
 SIGKILL
+SIGLOST
 SIGPIPE
 SIGPOLL
 SIGPROF