Remove unused HAVE_* symbols for functions.

* configure.in (AC_CHECK_FUNCS): Remove XSetWMProtocols,
getdomainname, mblen (twice), mbrlen (twice), mbsinit, ualarm,
getsockopt, setsockopt, mremap, mempcpy.
* admin/CPP-DEFINES (HAVE_GETDOMAINNAME): Remove.
* msdos/sed2v2.inp (HAVE_MBLEN): Remove.
* msdos/sed2x.inp (HAVE_XSETWMPROTOCOLS): Remove.
* nt/config.nt (HAVE_GETDOMAINNAME, HAVE_XSETWMPROTOCOLS)
(HAVE_GETSOCKOPT, HAVE_SETSOCKOPT): Remove; not needed.
* src/s/ms-w32.h (HAVE_GETDOMAINNAME): Remove; not needed.

2 files changed, 2 insertions, 1 deletions

diff --git a/admin/CPP-DEFINES b/admin/CPP-DEFINES
index 8310d0d96cc..71ba4bf8ece 100644
--- a/admin/CPP-DEFINES
+++ b/admin/CPP-DEFINES
@@ -121,7 +121,6 @@ HAVE_FPATHCONF
 HAVE_FREXP
 HAVE_FSYNC
 HAVE_GETCWD
-HAVE_GETDOMAINNAME
 HAVE_GETHOSTNAME
 HAVE_GETLOADAVG
 HAVE_GETPAGESIZE
diff --git a/admin/ChangeLog b/admin/ChangeLog
index deb83a96b50..55504b3d6f8 100644
--- a/admin/ChangeLog
+++ b/admin/ChangeLog
@@ -1,5 +1,7 @@
 2012-05-19  Paul Eggert  <eggert@cs.ucla.edu>
 
+        * CPP-DEFINES (HAVE_GETDOMAINNAME): Remove.
+
         * CPP-DEFINES (HAVE_FTIME): Remove.
 
 2012-05-02  Glenn Morris  <rgm@gnu.org>