Merge branch 'collectd-4.7'

diff --combined configure.in
index d9f79d9,d102432..4e3f965
--- 1/configure.in
--- 2/configure.in
+++ b/configure.in
@@@ -2,6 -2,25 +2,25 @@@ dnl Process this file with autoconf to 
  AC_INIT(collectd, m4_esyscmd(./version-gen.sh))
  AC_CONFIG_SRCDIR(src/collectd.c)
  AC_CONFIG_HEADERS(src/config.h)
+ 
+ m4_ifdef([LT_PACKAGE_VERSION],
+       # libtool >= 2.2
+       [
+        LT_CONFIG_LTDL_DIR([libltdl])
+        LT_INIT([dlopen])
+        LTDL_INIT([convenience])
+       ]
+ ,
+       # libtool <= 1.5
+       [
+        AC_LIBLTDL_CONVENIENCE
+        AC_SUBST(LTDLINCL)
+        AC_SUBST(LIBLTDL)
+        AC_LIBTOOL_DLOPEN
+        AC_CONFIG_SUBDIRS(libltdl)
+       ]
+ )
+ 
  AM_INIT_AUTOMAKE(dist-bzip2)
  AC_LANG(C)
  
@@@ -20,17 -39,11 +39,11 @@@ AC_PROG_MAKE_SE
  AM_PROG_CC_C_O
  AM_CONDITIONAL(COMPILER_IS_GCC, test "x$GCC" = "xyes")
  
- dnl configure libtool
  AC_DISABLE_STATIC
- AC_LIBLTDL_CONVENIENCE
- AC_SUBST(LTDLINCL)
- AC_SUBST(LIBLTDL)
- AC_LIBTOOL_DLOPEN
  AC_PROG_LIBTOOL
  AC_PROG_LEX
  AC_PROG_YACC
  PKG_PROG_PKG_CONFIG
- AC_CONFIG_SUBDIRS(libltdl)
  
  AC_MSG_CHECKING([for kernel type ($host_os)])
  case $host_os in
@@@ -2951,57 -2964,6 +2964,57 @@@ AC_DEFINE_UNQUOTED(HAVE_LIBXMMS, [$with
  AM_CONDITIONAL(BUILD_WITH_LIBXMMS, test "x$with_libxmms" = "xyes")
  # }}}
  
 +# --with-libyajl {{{
 +with_libyajl_cppflags=""
 +with_libyajl_ldflags=""
 +AC_ARG_WITH(libyajl, [AS_HELP_STRING([--with-libyajl@<:@=PREFIX@:>@], [Path to libyajl.])],
 +[
 +      if test "x$withval" != "xno" && test "x$withval" != "xyes"
 +      then
 +              with_libyajl_cppflags="-I$withval/include"
 +              with_libyajl_ldflags="-L$withval/lib"
 +              with_libyajl="yes"
 +      else
 +              with_libyajl="$withval"
 +      fi
 +],
 +[
 +      with_libyajl="yes"
 +])
 +if test "x$with_libyajl" = "xyes"
 +then
 +      SAVE_CPPFLAGS="$CPPFLAGS"
 +      CPPFLAGS="$CPPFLAGS $with_libyajl_cppflags"
 +
 +      AC_CHECK_HEADERS(yajl/yajl_parse.h, [with_libyajl="yes"], [with_libyajl="no (yajl/yajl_parse.h not found)"])
 +
 +      CPPFLAGS="$SAVE_CPPFLAGS"
 +fi
 +if test "x$with_libyajl" = "xyes"
 +then
 +      SAVE_CPPFLAGS="$CPPFLAGS"
 +      SAVE_LDFLAGS="$LDFLAGS"
 +      CPPFLAGS="$CPPFLAGS $with_libyajl_cppflags"
 +      LDFLAGS="$LDFLAGS $with_libyajl_ldflags"
 +
 +      AC_CHECK_LIB(yajl, yajl_alloc, [with_libyajl="yes"], [with_libyajl="no (Symbol 'yajl_alloc' not found)"])
 +
 +      CPPFLAGS="$SAVE_CPPFLAGS"
 +      LDFLAGS="$SAVE_LDFLAGS"
 +fi
 +if test "x$with_libyajl" = "xyes"
 +then
 +      BUILD_WITH_LIBYAJL_CPPFLAGS="$with_libyajl_cppflags"
 +      BUILD_WITH_LIBYAJL_LDFLAGS="$with_libyajl_ldflags"
 +      BUILD_WITH_LIBYAJL_LIBS="-lyajl"
 +      AC_SUBST(BUILD_WITH_LIBYAJL_CPPFLAGS)
 +      AC_SUBST(BUILD_WITH_LIBYAJL_LDFLAGS)
 +      AC_SUBST(BUILD_WITH_LIBYAJL_LIBS)
 +      AC_DEFINE(HAVE_LIBYAJL, 1, [Define if libyajl is present and usable.])
 +fi
 +AM_CONDITIONAL(BUILD_WITH_LIBYAJL, test "x$with_libyajl" = "xyes")
 +# }}}
 +
  # pkg-config --exists 'libxml-2.0'; pkg-config --exists libvirt {{{
  with_libxml2="no (pkg-config isn't available)"
  with_libxml2_cflags=""
@@@ -3334,7 -3296,6 +3347,7 @@@ plugin_ascent="no
  plugin_battery="no"
  plugin_bind="no"
  plugin_conntrack="no"
 +plugin_couchdb="no"
  plugin_cpu="no"
  plugin_cpufreq="no"
  plugin_df="no"
@@@ -3452,11 -3413,6 +3465,11 @@@ the
        plugin_ipmi="yes"
  fi
  
 +if test "x$with_libcurl" = "xyes" && test "x$with_libyajl" = "xyes"
 +then
 +      plugin_couchdb="yes"
 +fi
 +
  if test "x$have_processor_info" = "xyes"
  then
        plugin_cpu="yes"
@@@ -3604,7 -3560,6 +3617,7 @@@ AC_PLUGIN([ascent],      [$plugin_ascen
  AC_PLUGIN([battery],     [$plugin_battery],    [Battery statistics])
  AC_PLUGIN([bind],        [$plugin_bind],       [ISC Bind nameserver statistics])
  AC_PLUGIN([conntrack],   [$plugin_conntrack],  [nf_conntrack statistics])
 +AC_PLUGIN([couchdb],     [$plugin_couchdb],    [CouchDB statistics])
  AC_PLUGIN([cpufreq],     [$plugin_cpufreq],    [CPU frequency statistics])
  AC_PLUGIN([cpu],         [$plugin_cpu],        [CPU usage statistics])
  AC_PLUGIN([csv],         [yes],                [CSV output plugin])
@@@ -3894,7 -3849,6 +3907,7 @@@ Configuration
      battery . . . . . . . $enable_battery
      bind  . . . . . . . . $enable_bind
      conntrack . . . . . . $enable_conntrack
 +    couchdb . . . . . . . $enable_couchdb
      cpu . . . . . . . . . $enable_cpu
      cpufreq . . . . . . . $enable_cpufreq
      csv . . . . . . . . . $enable_csv