1 files changed, 53 insertions, 0 deletions
diff --git a/ruby_1_8_6/ext/dbm/extconf.rb b/ruby_1_8_6/ext/dbm/extconf.rb
new file mode 100644
index 0000000000..0074ab605b
--- /dev/null
+++ b/ruby_1_8_6/ext/dbm/extconf.rb
@@ -0,0 +1,53 @@
+require 'mkmf'
+
+dir_config("dbm")
+
+if dblib = with_config("dbm-type", nil)
+  dblib = dblib.split(/[ ,]+/)
+else
+  dblib = %w(db db2 db1 dbm gdbm gdbm_compat qdbm)
+end
+
+headers = {
+  "db" => ["db.h"],
+  "db1" => ["db1/ndbm.h", "db1.h", "ndbm.h"],
+  "db2" => ["db2/db.h", "db2.h", "db.h"],
+  "dbm" => ["ndbm.h"],
+  "gdbm" => ["gdbm-ndbm.h", "ndbm.h"],
+  "gdbm_compat" => ["gdbm-ndbm.h", "ndbm.h"],
+  "qdbm" => ["relic.h"],
+}
+
+def headers.db_check(db)
+  db_prefix = nil
+  have_gdbm = false
+  hsearch = nil
+
+  case db
+  when /^db2?$/
+    db_prefix = "__db_n"
+    hsearch = "-DDB_DBM_HSEARCH "
+  when "gdbm"
+    have_gdbm = true
+  when "gdbm_compat"
+    have_gdbm = true
+    have_library("gdbm") or return false
+  end
+  db_prefix ||= ""
+
+  if (have_library(db, db_prefix+"dbm_open") || have_func(db_prefix+"dbm_open")) and
+      hdr = self.fetch(db, ["ndbm.h"]).find {|hdr| have_type("DBM", hdr, hsearch)}
+    have_func(db_prefix+"dbm_clearerr") unless have_gdbm
+    $defs << hsearch if hsearch
+    $defs << '-DDBM_HDR="<'+hdr+'>"'
+    true
+  else
+    false
+  end
+end
+
+if dblib.any? {|db| headers.db_check(db)}
+  have_header("cdefs.h")
+  have_header("sys/cdefs.h")
+  create_makefile("dbm")
+end