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-rw-r--r--ext/ripper/extconf.rb6
1 files changed, 4 insertions, 2 deletions
diff --git a/ext/ripper/extconf.rb b/ext/ripper/extconf.rb
index 6b44073300..a41a6af2d8 100644
--- a/ext/ripper/extconf.rb
+++ b/ext/ripper/extconf.rb
@@ -12,8 +12,10 @@ def main
end
$objs = %w(ripper.o)
$cleanfiles.concat %w(ripper.y ripper.c ripper.E ripper.output eventids1.c eventids2table.c)
- $CPPFLAGS += ' -DRIPPER'
- $CPPFLAGS += ' -DRIPPER_DEBUG' if $debug
+ $defs << '-DRIPPER'
+ $defs << '-DRIPPER_DEBUG' if $debug
+ $VPATH << '$(topdir)' << '$(top_srcdir)'
+ $INCFLAGS << ' -I$(topdir) -I$(top_srcdir)'
create_makefile 'ripper'
end