Add a command to autogen --skip-configure to allow the autogen/configure steps

to be split for the build tinderbox.

Originally committed to SVN as r2834.

aegisub/autogen.sh

@@ -225,6 +225,7 @@ if test "$DIE" -eq 1; then
 fi
 
 
+if ! test "$1" = "--skip-configure"; then
   echo
  echo "I am going to run ./configure with the following arguments:"
  echo
@@ -237,7 +238,7 @@ if test -z "$*"; then
      echo "environment variable."
      echo
  fi
-
+fi
 
 
 echo "--- Checking for required M4 files ---"
@@ -326,6 +327,7 @@ $INTLTOOLIZE --force --automake || exit $?
 
 cd $ORIGDIR
 
+if ! test "$1" = "--skip-configure"; then
   echo "--- $srcdir/configure ---"
   $srcdir/configure --enable-maintainer-mode $AUTOGEN_CONFIGURE_ARGS "$@"
   RC=$?
@@ -347,3 +349,5 @@ if test $RC -ne 0; then
   fi
 
   echo "Now type 'make' to compile $PROJECT."
+fi
+