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authorakr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2013-05-23 13:49:10 +0000
committerakr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2013-05-23 13:49:10 +0000
commitd07439d5fdbcec497dc251c5c4e77d1660cd195b (patch)
treec2f1e49cb8445b70d38f30eac8275760f10797fa /ext/dbm/extconf.rb
parentf8180b8963a693d92a2be906a06ef2ffc204c284 (diff)
Add a comment.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40901 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/dbm/extconf.rb')
-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 32a9446..5a04881 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")