+if test "$no_recursion" != yes; then
+
+ # Remove --cache-file and --srcdir arguments so they do not pile up.
+ ac_sub_configure_args=
+ ac_prev=
+ for ac_arg in $ac_configure_args; do
+ if test -n "$ac_prev"; then
+ ac_prev=
+ continue
+ fi
+ case "$ac_arg" in
+ -cache-file | --cache-file | --cache-fil | --cache-fi \
+ | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
+ ac_prev=cache_file ;;
+ -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
+ | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
+ ;;
+ -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
+ ac_prev=srcdir ;;
+ -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
+ ;;
+ *) ac_sub_configure_args="$ac_sub_configure_args $ac_arg" ;;
+ esac
+ done
+
+ for ac_config_dir in demos samples utils; do
+
+ # Do not complain, so a configure script can configure whichever
+ # parts of a large source tree are present.
+ if test ! -d $srcdir/$ac_config_dir; then
+ continue
+ fi
+
+ echo configuring in $ac_config_dir
+
+ case "$srcdir" in
+ .) ;;
+ *)
+ if test -d ./$ac_config_dir || mkdir ./$ac_config_dir; then :;
+ else
+ { echo "configure: error: can not create `pwd`/$ac_config_dir" 1>&2; exit 1; }
+ fi
+ ;;
+ esac
+
+ ac_popdir=`pwd`
+ cd $ac_config_dir
+
+ # A "../" for each directory in /$ac_config_dir.
+ ac_dots=`echo $ac_config_dir|sed -e 's%^\./%%' -e 's%[^/]$%&/%' -e 's%[^/]*/%../%g'`
+
+ case "$srcdir" in
+ .) # No --srcdir option. We are building in place.
+ ac_sub_srcdir=$srcdir ;;
+ /*) # Absolute path.
+ ac_sub_srcdir=$srcdir/$ac_config_dir ;;
+ *) # Relative path.
+ ac_sub_srcdir=$ac_dots$srcdir/$ac_config_dir ;;
+ esac
+
+ # Check for guested configure; otherwise get Cygnus style configure.
+ if test -f $ac_sub_srcdir/configure; then
+ ac_sub_configure=$ac_sub_srcdir/configure
+ elif test -f $ac_sub_srcdir/configure.in; then
+ ac_sub_configure=$ac_configure
+ else
+ echo "configure: warning: no configuration information is in $ac_config_dir" 1>&2
+ ac_sub_configure=
+ fi
+
+ # The recursion is here.
+ if test -n "$ac_sub_configure"; then
+
+ # Make the cache file name correct relative to the subdirectory.
+ case "$cache_file" in
+ /*) ac_sub_cache_file=$cache_file ;;
+ *) # Relative path.
+ ac_sub_cache_file="$ac_dots$cache_file" ;;
+ esac
+ case "$ac_given_INSTALL" in
+ [/$]*) INSTALL="$ac_given_INSTALL" ;;
+ *) INSTALL="$ac_dots$ac_given_INSTALL" ;;
+ esac
+
+ echo "running ${CONFIG_SHELL-/bin/sh} $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_sub_srcdir"
+ # The eval makes quoting arguments work.
+ if eval ${CONFIG_SHELL-/bin/sh} $ac_sub_configure $ac_sub_configure_args --cache-file=$ac_sub_cache_file --srcdir=$ac_sub_srcdir
+ then :
+ else
+ { echo "configure: error: $ac_sub_configure failed for $ac_config_dir" 1>&2; exit 1; }
+ fi
+ fi
+
+ cd $ac_popdir
+ done
+fi
+