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require 'mkmf'
dir_config("dbm")
if dblib = with_config("dbm-type", nil)
dblib = dblib.split(/[ ,]+/)
else
dblib = %w(db db2 db1 db5 db4 db3 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"],
"db3" => ["db3/db.h", "db3.h", "db.h"],
"db4" => ["db4/db.h", "db4.h", "db.h"],
"db5" => ["db5/db.h", "db5.h", "db.h"],
"dbm" => ["ndbm.h"],
"gdbm" => ["gdbm-ndbm.h", "ndbm.h", "gdbm/ndbm.h"],
"gdbm_compat" => ["gdbm-ndbm.h", "ndbm.h", "gdbm/ndbm.h"], # ndbm compatibility routines are extracted to libgdbm_compat since gdbm-1.8.1.
"qdbm" => ["relic.h", "qdbm/relic.h"],
}
class << headers
attr_accessor :found
attr_accessor :defs
end
headers.found = []
headers.defs = nil
def headers.db_check(db)
db_prefix = nil
have_gdbm = false
hsearch = nil
case db
when /^db[2-5]?$/
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)} or
hdr = self.fetch(db, ["ndbm.h"]).find {|h| have_type("DBM", ["db.h", h], hsearch)}
have_func(db_prefix+"dbm_clearerr") unless have_gdbm
if hsearch
$defs << hsearch
@defs = hsearch
end
$defs << '-DDBM_HDR="<'+hdr+'>"'
@found << hdr
true
else
false
end
end
if dblib.any? {|db| headers.db_check(db)}
have_header("cdefs.h")
have_header("sys/cdefs.h")
have_func("dbm_pagfno((DBM *)0)", headers.found, headers.defs)
have_func("dbm_dirfno((DBM *)0)", headers.found, headers.defs)
type = checking_for "sizeof(datum.dsize)", STRING_OR_FAILED_FORMAT do
pre = headers.found + [["static datum conftest_key;"]]
%w[int long LONG_LONG].find do |t|
try_static_assert("sizeof(conftest_key.dsize) <= sizeof(#{t})", pre, headers.defs)
end
end
$defs << "-DSIZEOF_DSIZE=SIZEOF_"+type.tr_cpp if type
create_makefile("dbm")
end
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