summaryrefslogtreecommitdiff
path: root/ext
diff options
context:
space:
mode:
Diffstat (limited to 'ext')
-rw-r--r--ext/dbm/extconf.rb16
1 files changed, 16 insertions, 0 deletions
diff --git a/ext/dbm/extconf.rb b/ext/dbm/extconf.rb
index 32a944634ac..5a048816169 100644
--- a/ext/dbm/extconf.rb
+++ b/ext/dbm/extconf.rb
@@ -1,3 +1,19 @@
+# configure option:
+# --with-dbm-type=COMMA-SEPARATED-NDBM-TYPES
+#
+# ndbm type:
+# libc ndbm compatible library in libc.
+# db Berkeley DB (libdb)
+# db2 Berkeley DB (libdb2)
+# db1 Berkeley DB (libdb1)
+# db5 Berkeley DB (libdb5)
+# db4 Berkeley DB (libdb4)
+# db3 Berkeley DB (libdb3)
+# gdbm_compat GDBM since 1.8.1 (libgdbm_compat)
+# gdbm GDBM until 1.8.0 (libgdbm)
+# qdbm QDBM (libqdbm)
+# ndbm Some legacy OS may have libndbm.
+
require 'mkmf'
dir_config("dbm")