configure: don't check for arpa/nameser_compat.h twice

Nuke redundant check and move the real one into the common
AC_CHECK_HEADERS stanza.

Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>

diff --git a/configure.ac b/configure.ac
index 0c67e470759a0127ffd94dab4b2a11b6b623030e..5773688b02342d8d9814b7549f924aad9479bbc2 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -596,6 +596,7 @@ AC_CHECK_MEMBER([struct fiemap_extent.fe_logical],
 
 AC_CHECK_HEADERS([ \
        arpa/inet.h \
+       arpa/nameser_compat.h \
        linux/version.h \
        netdb.h \
        netinet/in.h \
@@ -639,16 +640,12 @@ AC_CHECK_FUNC([splice],
        [AC_DEFINE([CEPH_HAVE_SPLICE], [], [splice(2) is supported])],
        [])
 
-
-AC_CHECK_HEADERS([arpa/nameser_compat.h])
-
 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#include <fcntl.h>
 F_SETPIPE_SZ]])],
        [AC_DEFINE([CEPH_HAVE_SETPIPE_SZ], [], [F_SETPIPE_SZ is supported])],
        [AC_MSG_NOTICE(["F_SETPIPE_SZ not found, zero-copy may be less efficent"])])
 
 
-AC_CHECK_HEADERS([arpa/nameser_compat.h])
 AC_CHECK_FUNCS([posix_fallocate])
 AC_CHECK_HEADERS([sys/prctl.h])
 AC_CHECK_FUNCS([prctl])