configure: remove missing and make it autogenerate

The missing file has not been autogenerated because a temporary fix was
employed in acinclude.m4 which blocked update. Removed that fix and a recent
version of missing is copied to build root.

Author: michael-o

acinclude.m4

@@ -2452,23 +2452,6 @@ AC_DEFUN([CURL_CHECK_FUNC_SELECT], [
 ])
 
 
-# This is only a temporary fix. This macro is here to replace the broken one
-# delivered by the automake project (including the 1.9.6 release). As soon as
-# they ship a working version we SHOULD remove this work-around.
-
-AC_DEFUN([AM_MISSING_HAS_RUN],
-[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
-test x"${MISSING+set}" = xset || MISSING="\${SHELL} \"$am_aux_dir/missing\""
-# Use eval to expand $SHELL
-if eval "$MISSING --run true"; then
-  am_missing_run="$MISSING --run "
-else
-  am_missing_run=
-  AC_MSG_WARN([`missing' script is too old or missing])
-fi
-])
-
-
 dnl CURL_VERIFY_RUNTIMELIBS
 dnl -------------------------------------------------
 dnl Verify that the shared libs found so far can be used when running

buildconf

@@ -318,6 +318,7 @@ for fname in .deps \
     ltsugar.m4 \
     ltversion.m4 \
     lt~obsolete.m4 \
+    missing \
     install-sh \
     stamp-h1 \
     stamp-h2 \