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-rw-r--r--ext/dbm/extconf.rb3
1 files changed, 3 insertions, 0 deletions
diff --git a/ext/dbm/extconf.rb b/ext/dbm/extconf.rb
index c499df97ad..2f6255b50f 100644
--- a/ext/dbm/extconf.rb
+++ b/ext/dbm/extconf.rb
@@ -1,5 +1,8 @@
require 'mkmf'
$LDFLAGS = "-L/usr/local/lib"
+if dir = with_config("dbm-include")
+ $CFLAGS = "-I#{dir}"
+end
have_library("gdbm", "dbm_open") or
have_library("db", "dbm_open") or
have_library("dbm", "dbm_open")