--- ./acinclude.m4
+++ ./acinclude.m4
@@ -4937,31 +4937,11 @@ AC_DEFUN([KDE_SET_PREFIX],
   AC_PREFIX_DEFAULT(${KDEDIR:-the kde prefix})
 
   KDE_SET_DEFAULT_BINDIRS
-  if test "x$prefix" = "xNONE"; then
-    dnl no prefix given: look for kde-config in the PATH and deduce the prefix from it
-    KDE_FIND_PATH(kde-config, KDECONFIG, [$kde_default_bindirs], [KDE_MISSING_PROG_ERROR(kde-config)], [], prepend)
-  else
-    dnl prefix given: look for kde-config, preferrably in prefix, otherwise in PATH
-    kde_save_PATH="$PATH"
-    PATH="$exec_prefix/bin:$prefix/bin:$PATH"
-    KDE_FIND_PATH(kde-config, KDECONFIG, [$kde_default_bindirs], [KDE_MISSING_PROG_ERROR(kde-config)], [], prepend)
-    PATH="$kde_save_PATH"
-  fi
-
-  kde_libs_prefix=`$KDECONFIG --prefix`
-  if test -z "$kde_libs_prefix" || test ! -x "$kde_libs_prefix"; then
-       AC_MSG_ERROR([$KDECONFIG --prefix outputed the non existant prefix '$kde_libs_prefix' for kdelibs.
-                    This means it has been moved since you installed it.
-                    This won't work. Please recompile kdelibs for the new prefix.
-                    ])
-  fi
-  kde_libs_htmldir=`$KDECONFIG --install html --expandvars`
-  kde_libs_suffix=`$KDECONFIG --libsuffix`
 
   AC_MSG_CHECKING([where to install])
   if test "x$prefix" = "xNONE"; then
     prefix=$kde_libs_prefix
-    AC_MSG_RESULT([$prefix (as returned by kde-config)])
+    AC_MSG_RESULT([$prefix (as NOT returned by kde-config)])
   else
     dnl --prefix was given. Compare prefixes and warn (in configure.in.bot.end) if different
     given_prefix=$prefix
@@ -4973,7 +4953,6 @@ AC_DEFUN([KDE_SET_PREFIX],
   exec_prefix=`echo "$exec_prefix" | sed 's,//*,/,g' | sed -e 's,/$,,'`
   given_prefix=`echo "$given_prefix" | sed 's,//*,/,g' | sed -e 's,/$,,'`
 
-  AC_SUBST(KDECONFIG)
   AC_SUBST(kde_libs_prefix)
   AC_SUBST(kde_libs_htmldir)