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54 lines (46 sloc) 1.184 kB
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 {|h| have_type("DBM", h, 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
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