Accept ruby configuration flags as extra position arguments on the command line

Author: mislav

bin/rbenv-install

@@ -221,9 +221,12 @@ cleanup() {
 
 trap cleanup SIGINT
 
+build_args=(${KEEP:+--keep} ${VERBOSE:+--verbose} ${HAS_PATCH:+--patch} "$DEFINITION" "$PREFIX")
+[ ${#EXTRA_ARGUMENTS[@]} -eq 0 ] || build_args+=(-- "${EXTRA_ARGUMENTS[@]}")
+
 # Invoke `ruby-build` and record the exit status in $STATUS.
 STATUS=0
-ruby-build $KEEP $VERBOSE $HAS_PATCH "$DEFINITION" "$PREFIX" || STATUS="$?"
+ruby-build "${build_args[@]}" || STATUS="$?"
 
 # Display a more helpful message if the definition wasn't found.
 if [ "$STATUS" == "2" ]; then

bin/ruby-build

@@ -1331,6 +1331,10 @@ if [ "${#ARGUMENTS[@]}" -gt 2 ]; then
   EARLY_EXIT=usage_error
 fi
 
+if [ "${#EXTRA_ARGUMENTS[@]}" -gt 0 ]; then
+  RUBY_CONFIGURE_OPTS_ARRAY=("${EXTRA_ARGUMENTS[@]}")
+fi
+
 case "$EARLY_EXIT" in
 help )
   version