bpo-43617: Check autoconf-archive package in configure.ac (GH-25016)

Signed-off-by: Christian Heimes <christian@python.org>
diff --git a/configure b/configure
index f9b2aff..6ba109b 100755
--- a/configure
+++ b/configure
@@ -1594,7 +1594,7 @@
   --with-ensurepip[=install|upgrade|no]
                           "install" or "upgrade" using bundled pip (default is
                           upgrade)
-  --with-openssl=DIR      override root of the OpenSSL directory to DIR
+  --with-openssl=DIR      root of the OpenSSL directory
   --with-openssl-rpath=[DIR|auto|no]
                           Set runtime library directory (rpath) for OpenSSL
                           libraries, no (default): don't set rpath, auto:
@@ -14571,10 +14571,10 @@
 if ac_fn_c_try_compile "$LINENO"; then :
 
 
-if $GREP noonsees conftest.$ac_objext >/dev/null ; then
+if grep noonsees conftest.$ac_objext >/dev/null ; then
   ax_cv_c_float_words_bigendian=yes
 fi
-if $GREP seesnoon conftest.$ac_objext >/dev/null ; then
+if grep seesnoon conftest.$ac_objext >/dev/null ; then
   if test "$ax_cv_c_float_words_bigendian" = unknown; then
     ax_cv_c_float_words_bigendian=no
   else