[balsa] Build tools: Remove test for libresolv

[Peter Bloomfield <peterb src gnome org>]

commit dcb78def69e4f7657e8cb0c825bc76b7e978c768
Author: Albrecht Dreß <albrecht dress arcor de>
Date:   Sun Feb 2 09:52:36 2020 -0500

    Build tools: Remove test for libresolv
    
    * configure.ac:
    * meson.build:

 ChangeLog    |  7 +++++++
 configure.ac | 20 --------------------
 meson.build  | 16 ----------------
 3 files changed, 7 insertions(+), 36 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index b4ff2d365..b9620129a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2020-02-02  Albrecht Dreß  <albrecht dress arcor de>
+
+       Build tools: Remove test for libresolv
+
+       * configure.ac:
+       * meson.build:
+
 2020-02-01  Albrecht Dreß  <albrecht dress arcor de>
 
        [Patch] ical improvements
diff --git a/configure.ac b/configure.ac
index 080678d73..1d0cb3f4e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -245,26 +245,6 @@ PKG_CHECK_MODULES(LIBNETCLIENT, [
        gnutls
 ])
 
-AC_MSG_CHECKING(whether res_init is available)
-AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <resolv.h>;]],
-                               [[res_init();]])],
-               have_res_init=yes,
-               have_res_init=no)
-if test $have_res_init = no ; then
-    save_LIBS=$LIBS
-    LIBS="$LIBS -lresolv"
-    AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <resolv.h>;]],
-                                   [[res_init();]])],
-                   have_res_init=yes)
-fi
-AC_MSG_RESULT([$have_res_init])
-if test $have_res_init = no ; then
-    LIBS=$save_LIBS
-else
-    AC_DEFINE(HAVE_RES_INIT,1,
-              [Defined when res_init is available.])
-fi
-
 dnl ##########################################################################
 dnl Check versions
 dnl ##########################################################################
diff --git a/meson.build b/meson.build
index ec05689c9..2ab92ff10 100644
--- a/meson.build
+++ b/meson.build
@@ -159,22 +159,6 @@ libnetclient_deps = [glib_dep,
                      gio_dep,
                      gnutls_dep]
 
-# Check whether res_init is available
-result = compiler.has_function('res_init', prefix : '#include <resolv.h>')
-if not result
-  result = compiler.has_function('res_init',
-                                 prefix : '#include <resolv.h>',
-                                 args   : '-lresolv')
-  if result
-    add_global_link_arguments('-lresolv')
-  endif
-endif
-
-if result
-  conf.set('HAVE_RES_INIT', 1,
-    description : 'Defined when res_init is available.')
-endif
-
 # ##########################################################################
 # Check versions
 # ##########################################################################