1 files changed, 21 insertions, 0 deletions
diff --git a/jni/ruby/ext/ripper/extconf.rb b/jni/ruby/ext/ripper/extconf.rb
new file mode 100644
index 0000000..db54e5c
--- /dev/null
+++ b/jni/ruby/ext/ripper/extconf.rb
@@ -0,0 +1,21 @@
+#!ruby -s
+
+require 'mkmf'
+require 'rbconfig'
+
+def main
+  unless find_executable('bison')
+    unless File.exist?('ripper.c') or File.exist?("#{$srcdir}/ripper.c")
+      raise 'missing bison; abort'
+    end
+  end
+  $objs = %w(ripper.o)
+  $cleanfiles.concat %w(ripper.y ripper.c ripper.E ripper.output y.output eventids1.c eventids2table.c)
+  $defs << '-DRIPPER'
+  $defs << '-DRIPPER_DEBUG' if $debug
+  $VPATH << '$(topdir)' << '$(top_srcdir)'
+  $INCFLAGS << ' -I$(topdir) -I$(top_srcdir)'
+  create_makefile 'ripper'
+end
+
+main