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-rw-r--r--lib/mkmf.rb3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/mkmf.rb b/lib/mkmf.rb
index 2189a436ee..21fc2fce1f 100644
--- a/lib/mkmf.rb
+++ b/lib/mkmf.rb
@@ -1052,6 +1052,9 @@ topdir = #{($extmk ? CONFIG["topdir"] : $topdir).quote}
hdrdir = #{$extmk ? CONFIG["hdrdir"].quote : '$(topdir)'}
VPATH = #{vpath.join(CONFIG['PATH_SEPARATOR'])}
}
+ if $extmk
+ mk << "RUBYLIB = -\nRUBYOPT = -rpurelib.rb\n"
+ end
if destdir = CONFIG["prefix"][$dest_prefix_pattern, 1]
mk << "\nDESTDIR = #{destdir}\n"
end