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Contents of ruby-1.9.3-p286/lib/ruby/1.9.1/mkmf.rb

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mkmf.rb
Ruby
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# -*- indent-tabs-mode: t -*-
# module to create Makefile for extension modules
# invoke like: ruby -r mkmf extconf.rb
 
require 'rbconfig'
require 'fileutils'
require 'shellwords'
 
CONFIG = RbConfig::MAKEFILE_CONFIG
ORIG_LIBPATH = ENV['LIB']
 
C_EXT = %w[c m]
CXX_EXT = %w[cc mm cxx cpp]
if File::FNM_SYSCASE.zero?
CXX_EXT.concat(%w[C])
end
SRC_EXT = C_EXT + CXX_EXT
$static = nil
$config_h = '$(arch_hdrdir)/ruby/config.h'
$default_static = $static
 
unless defined? $configure_args
$configure_args = {}
args = CONFIG["configure_args"]
if ENV["CONFIGURE_ARGS"]
args << " " << ENV["CONFIGURE_ARGS"]
end
for arg in Shellwords::shellwords(args)
arg, val = arg.split('=', 2)
next unless arg
arg.tr!('_', '-')
if arg.sub!(/^(?!--)/, '--')
val or next
arg.downcase!
end
next if /^--(?:top|topsrc|src|cur)dir$/ =~ arg
$configure_args[arg] = val || true
end
for arg in ARGV
arg, val = arg.split('=', 2)
next unless arg
arg.tr!('_', '-')
if arg.sub!(/^(?!--)/, '--')
val or next
arg.downcase!
end
$configure_args[arg] = val || true
end
end
 
$libdir = CONFIG["libdir"]
$rubylibdir = CONFIG["rubylibdir"]
$archdir = CONFIG["archdir"]
$sitedir = CONFIG["sitedir"]
$sitelibdir = CONFIG["sitelibdir"]
$sitearchdir = CONFIG["sitearchdir"]
$vendordir = CONFIG["vendordir"]
$vendorlibdir = CONFIG["vendorlibdir"]
$vendorarchdir = CONFIG["vendorarchdir"]
 
$mswin = /mswin/ =~ RUBY_PLATFORM
$bccwin = /bccwin/ =~ RUBY_PLATFORM
$mingw = /mingw/ =~ RUBY_PLATFORM
$cygwin = /cygwin/ =~ RUBY_PLATFORM
$netbsd = /netbsd/ =~ RUBY_PLATFORM
$os2 = /os2/ =~ RUBY_PLATFORM
$beos = /beos/ =~ RUBY_PLATFORM
$haiku = /haiku/ =~ RUBY_PLATFORM
$solaris = /solaris/ =~ RUBY_PLATFORM
$universal = /universal/ =~ RUBY_PLATFORM
$dest_prefix_pattern = (File::PATH_SEPARATOR == ';' ? /\A([[:alpha:]]:)?/ : /\A/)
 
# :stopdoc:
 
def config_string(key, config = CONFIG)
s = config[key] and !s.empty? and block_given? ? yield(s) : s
end
 
def dir_re(dir)
Regexp.new('\$(?:\('+dir+'\)|\{'+dir+'\})(?:\$(?:\(target_prefix\)|\{target_prefix\}))?')
end
 
def relative_from(path, base)
dir = File.join(path, "")
if File.expand_path(dir) == File.expand_path(dir, base)
path
else
File.join(base, path)
end
end
 
INSTALL_DIRS = [
[dir_re('commondir'), "$(RUBYCOMMONDIR)"],
[dir_re('sitedir'), "$(RUBYCOMMONDIR)"],
[dir_re('vendordir'), "$(RUBYCOMMONDIR)"],
[dir_re('rubylibdir'), "$(RUBYLIBDIR)"],
[dir_re('archdir'), "$(RUBYARCHDIR)"],
[dir_re('sitelibdir'), "$(RUBYLIBDIR)"],
[dir_re('vendorlibdir'), "$(RUBYLIBDIR)"],
[dir_re('sitearchdir'), "$(RUBYARCHDIR)"],
[dir_re('vendorarchdir'), "$(RUBYARCHDIR)"],
[dir_re('rubyhdrdir'), "$(RUBYHDRDIR)"],
[dir_re('sitehdrdir'), "$(SITEHDRDIR)"],
[dir_re('vendorhdrdir'), "$(VENDORHDRDIR)"],
[dir_re('bindir'), "$(BINDIR)"],
]
 
def install_dirs(target_prefix = nil)
if $extout
dirs = [
['BINDIR', '$(extout)/bin'],
['RUBYCOMMONDIR', '$(extout)/common'],
['RUBYLIBDIR', '$(RUBYCOMMONDIR)$(target_prefix)'],
['RUBYARCHDIR', '$(extout)/$(arch)$(target_prefix)'],
['HDRDIR', '$(extout)/include/ruby$(target_prefix)'],
['ARCHHDRDIR', '$(extout)/include/$(arch)/ruby$(target_prefix)'],
['extout', "#$extout"],
['extout_prefix', "#$extout_prefix"],
]
elsif $extmk
dirs = [
['BINDIR', '$(bindir)'],
['RUBYCOMMONDIR', '$(rubylibdir)'],
['RUBYLIBDIR', '$(rubylibdir)$(target_prefix)'],
['RUBYARCHDIR', '$(archdir)$(target_prefix)'],
['HDRDIR', '$(rubyhdrdir)/ruby$(target_prefix)'],
['ARCHHDRDIR', '$(rubyhdrdir)/$(arch)/ruby$(target_prefix)'],
]
elsif $configure_args.has_key?('--vendor')
dirs = [
['BINDIR', '$(bindir)'],
['RUBYCOMMONDIR', '$(vendordir)$(target_prefix)'],
['RUBYLIBDIR', '$(vendorlibdir)$(target_prefix)'],
['RUBYARCHDIR', '$(vendorarchdir)$(target_prefix)'],
['HDRDIR', '$(rubyhdrdir)/ruby$(target_prefix)'],
['ARCHHDRDIR', '$(rubyhdrdir)/$(arch)/ruby$(target_prefix)'],
]
else
dirs = [
['BINDIR', '$(bindir)'],
['RUBYCOMMONDIR', '$(sitedir)$(target_prefix)'],
['RUBYLIBDIR', '$(sitelibdir)$(target_prefix)'],
['RUBYARCHDIR', '$(sitearchdir)$(target_prefix)'],
['HDRDIR', '$(rubyhdrdir)/ruby$(target_prefix)'],
['ARCHHDRDIR', '$(rubyhdrdir)/$(arch)/ruby$(target_prefix)'],
]
end
dirs << ['target_prefix', (target_prefix ? "/#{target_prefix}" : "")]
dirs
end
 
def map_dir(dir, map = nil)
map ||= INSTALL_DIRS
map.inject(dir) {|d, (orig, new)| d.gsub(orig, new)}
end
 
topdir = File.dirname(File.dirname(__FILE__))
path = File.expand_path($0)
$extmk = path[0, topdir.size+1] == topdir+"/"
$extmk &&= %r"\A(?:ext|enc|tool|test(?:/.+)?)\z" =~ File.dirname(path[topdir.size+1..-1])
$extmk &&= true
if not $extmk and File.exist?(($hdrdir = RbConfig::CONFIG["rubyhdrdir"]) + "/ruby/ruby.h")
$topdir = $hdrdir
$top_srcdir = $hdrdir
$arch_hdrdir = $hdrdir + "/$(arch)"
elsif File.exist?(($hdrdir = ($top_srcdir ||= topdir) + "/include") + "/ruby.h")
$topdir ||= RbConfig::CONFIG["topdir"]
$arch_hdrdir = "$(extout)/include/$(arch)"
else
abort "mkmf.rb can't find header files for ruby at #{$hdrdir}/ruby.h"
end
 
OUTFLAG = CONFIG['OUTFLAG']
COUTFLAG = CONFIG['COUTFLAG']
CPPOUTFILE = CONFIG['CPPOUTFILE']
 
CONFTEST_C = "conftest.c".freeze
 
class String
# Wraps a string in escaped quotes if it contains whitespace.
def quote
/\s/ =~ self ? "\"#{self}\"" : "#{self}"
end
 
# Generates a string used as cpp macro name.
def tr_cpp
strip.upcase.tr_s("^A-Z0-9_*", "_").tr_s("*", "P")
end
end
class Array
# Wraps all strings in escaped quotes if they contain whitespace.
def quote
map {|s| s.quote}
end
end
 
def rm_f(*files)
opt = (Hash === files.last ? [files.pop] : [])
FileUtils.rm_f(Dir[*files.flatten], *opt)
end
 
def rm_rf(*files)
opt = (Hash === files.last ? [files.pop] : [])
FileUtils.rm_rf(Dir[*files.flatten], *opt)
end
 
# Returns time stamp of the +target+ file if it exists and is newer
# than or equal to all of +times+.
def modified?(target, times)
(t = File.mtime(target)) rescue return nil
Array === times or times = [times]
t if times.all? {|n| n <= t}
end
 
def merge_libs(*libs)
libs.inject([]) do |x, y|
xy = x & y
xn = yn = 0
y = y.inject([]) {|ary, e| ary.last == e ? ary : ary << e}
y.each_with_index do |v, yi|
if xy.include?(v)
xi = [x.index(v), xn].max()
x[xi, 1] = y[yn..yi]
xn, yn = xi + (yi - yn + 1), yi + 1
end
end
x.concat(y[yn..-1] || [])
end
end
 
# This is a custom logging module. It generates an mkmf.log file when you
# run your extconf.rb script. This can be useful for debugging unexpected
# failures.
#
# This module and its associated methods are meant for internal use only.
#
module Logging
@log = nil
@logfile = 'mkmf.log'
@orgerr = $stderr.dup
@orgout = $stdout.dup
@postpone = 0
@quiet = $extmk
 
def self::log_open
@log ||= File::open(@logfile, 'wb')
@log.sync = true
end
 
def self::open
log_open
$stderr.reopen(@log)
$stdout.reopen(@log)
yield
ensure
$stderr.reopen(@orgerr)
$stdout.reopen(@orgout)
end
 
def self::message(*s)
log_open
@log.printf(*s)
end
 
def self::logfile file
@logfile = file
log_close
end
 
def self::log_close
if @log and not @log.closed?
@log.flush
@log.close
@log = nil
end
end
 
def self::postpone
tmplog = "mkmftmp#{@postpone += 1}.log"
open do
log, *save = @log, @logfile, @orgout, @orgerr
@log, @logfile, @orgout, @orgerr = nil, tmplog, log, log
begin
log.print(open {yield @log})
ensure
@log.close if @log and not @log.closed?
File::open(tmplog) {|t| FileUtils.copy_stream(t, log)} if File.exist?(tmplog)
@log, @logfile, @orgout, @orgerr = log, *save
@postpone -= 1
rm_f tmplog
end
end
end
 
class << self
attr_accessor :quiet
end
end
 
def xsystem command, opts = nil
varpat = /\$\((\w+)\)|\$\{(\w+)\}/
if varpat =~ command
vars = Hash.new {|h, k| h[k] = ''; ENV[k]}
command = command.dup
nil while command.gsub!(varpat) {vars[$1||$2]}
end
Logging::open do
puts command.quote
if opts and opts[:werror]
result = nil
Logging.postpone do |log|
result = (system(command) and File.zero?(log.path))
""
end
result
else
system(command)
end
end
end
 
def xpopen command, *mode, &block
Logging::open do
case mode[0]
when nil, /^r/
puts "#{command} |"
else
puts "| #{command}"
end
IO.popen(command, *mode, &block)
end
end
 
def log_src(src, heading="checked program was")
src = src.split(/^/)
fmt = "%#{src.size.to_s.size}d: %s"
Logging::message <<"EOM"
#{heading}:
/* begin */
EOM
src.each_with_index {|line, no| Logging::message fmt, no+1, line}
Logging::message <<"EOM"
/* end */
 
EOM
end
 
def create_tmpsrc(src)
src = "#{COMMON_HEADERS}\n#{src}"
src = yield(src) if block_given?
src.gsub!(/[ \t]+$/, '')
src.gsub!(/\A\n+|^\n+$/, '')
src.sub!(/[^\n]\z/, "\\&\n")
count = 0
begin
open(CONFTEST_C, "wb") do |cfile|
cfile.print src
end
rescue Errno::EACCES
if (count += 1) < 5
sleep 0.2
retry
end
end
src
end
 
def have_devel?
unless defined? $have_devel
$have_devel = true
$have_devel = try_link(MAIN_DOES_NOTHING)
end
$have_devel
end
 
def try_do(src, command, *opts, &b)
unless have_devel?
raise <<MSG
The compiler failed to generate an executable file.
You have to install development tools first.
MSG
end
begin
src = create_tmpsrc(src, &b)
xsystem(command, *opts)
ensure
log_src(src)
rm_rf 'conftest.dSYM'
end
end
 
def link_command(ldflags, opt="", libpath=$DEFLIBPATH|$LIBPATH)
librubyarg = $extmk ? $LIBRUBYARG_STATIC : "$(LIBRUBYARG)"
conf = RbConfig::CONFIG.merge('hdrdir' => $hdrdir.quote,
'src' => "#{CONFTEST_C}",
'arch_hdrdir' => $arch_hdrdir.quote,
'top_srcdir' => $top_srcdir.quote,
'INCFLAGS' => "#$INCFLAGS",
'CPPFLAGS' => "#$CPPFLAGS",
'CFLAGS' => "#$CFLAGS",
'ARCH_FLAG' => "#$ARCH_FLAG",
'LDFLAGS' => "#$LDFLAGS #{ldflags}",
'LOCAL_LIBS' => "#$LOCAL_LIBS #$libs",
'LIBS' => "#{librubyarg} #{opt} #$LIBS")
conf['LIBPATH'] = libpathflag(libpath.map {|s| RbConfig::expand(s.dup, conf)})
RbConfig::expand(TRY_LINK.dup, conf)
end
 
def cc_command(opt="")
conf = RbConfig::CONFIG.merge('hdrdir' => $hdrdir.quote, 'srcdir' => $srcdir.quote,
'arch_hdrdir' => $arch_hdrdir.quote,
'top_srcdir' => $top_srcdir.quote)
RbConfig::expand("$(CC) #$INCFLAGS #$CPPFLAGS #$CFLAGS #$ARCH_FLAG #{opt} -c #{CONFTEST_C}",
conf)
end
 
def cpp_command(outfile, opt="")
conf = RbConfig::CONFIG.merge('hdrdir' => $hdrdir.quote, 'srcdir' => $srcdir.quote,
'arch_hdrdir' => $arch_hdrdir.quote,
'top_srcdir' => $top_srcdir.quote)
RbConfig::expand("$(CPP) #$INCFLAGS #$CPPFLAGS #$CFLAGS #{opt} #{CONFTEST_C} #{outfile}",
conf)
end
 
def libpathflag(libpath=$DEFLIBPATH|$LIBPATH)
libpath.map{|x|
case x
when "$(topdir)", /\A\./
LIBPATHFLAG
else
LIBPATHFLAG+RPATHFLAG
end % x.quote
}.join
end
 
def with_werror(opt, opts = nil)
if opts
if opts[:werror] and config_string("WERRORFLAG") {|flag| opt = opt ? "#{opt} #{flag}" : flag}
(opts = opts.dup).delete(:werror)
end
yield(opt, opts)
else
yield(opt)
end
end
 
# :nodoc:
def try_link0(src, opt="", *opts, &b)
cmd = link_command("", opt)
if $universal
require 'tmpdir'
Dir.mktmpdir("mkmf_", oldtmpdir = ENV["TMPDIR"]) do |tmpdir|
begin
ENV["TMPDIR"] = tmpdir
try_do(src, cmd, *opts, &b)
ensure
ENV["TMPDIR"] = oldtmpdir
end
end
else
try_do(src, cmd, *opts, &b)
end
end
 
# Returns whether or not the +src+ can be compiled as a C source and
# linked with its depending libraries successfully.
# +opt+ is passed to the linker as options. Note that +$CFLAGS+ and +$LDFLAGS+
# are also passed to the linker.
#
# If a block given, it is called with the source before compilation. You can
# modify the source in the block.
#
# [+src+] a String which contains a C source
# [+opt+] a String which contains linker options
def try_link(src, opt="", *opts, &b)
try_link0(src, opt, *opts, &b)
ensure
rm_f "conftest*", "c0x32*"
end
 
# Returns whether or not the +src+ can be compiled as a C source.
# +opt+ is passed to the C compiler as options. Note that +$CFLAGS+ is
# also passed to the compiler.
#
# If a block given, it is called with the source before compilation. You can
# modify the source in the block.
#
# [+src+] a String which contains a C source
# [+opt+] a String which contains compiler options
def try_compile(src, opt="", *opts, &b)
with_werror(opt, *opts) {|_opt, *_opts| try_do(src, cc_command(_opt), *_opts, &b)}
ensure
rm_f "conftest*"
end
 
# Returns whether or not the +src+ can be preprocessed with the C preprocessor.
# +opt+ is passed to the preprocessor as options. Note that +$CFLAGS+ is
# also passed to the preprocessor.
#
# If a block given, it is called with the source before preprocessing. You can
# modify the source in the block.
#
# [+src+] a String which contains a C source
# [+opt+] a String which contains preprocessor options
def try_cpp(src, opt="", *opts, &b)
try_do(src, cpp_command(CPPOUTFILE, opt), *opts, &b)
ensure
rm_f "conftest*"
end
 
class Object
alias_method :try_header, (config_string('try_header') || :try_cpp)
end
 
def cpp_include(header)
if header
header = [header] unless header.kind_of? Array
header.map {|h| String === h ? "#include <#{h}>\n" : h}.join
else
""
end
end
 
def with_cppflags(flags)
cppflags = $CPPFLAGS
$CPPFLAGS = flags
ret = yield
ensure
$CPPFLAGS = cppflags unless ret
end
 
def with_cflags(flags)
cflags = $CFLAGS
$CFLAGS = flags
ret = yield
ensure
$CFLAGS = cflags unless ret
end
 
def with_ldflags(flags)
ldflags = $LDFLAGS
$LDFLAGS = flags
ret = yield
ensure
$LDFLAGS = ldflags unless ret
end
 
def try_static_assert(expr, headers = nil, opt = "", &b)
headers = cpp_include(headers)
try_compile(<<SRC, opt, &b)
#{headers}
/*top*/
int conftest_const[(#{expr}) ? 1 : -1];
SRC
end
 
def try_constant(const, headers = nil, opt = "", &b)
includes = cpp_include(headers)
if CROSS_COMPILING
if try_static_assert("#{const} > 0", headers, opt)
# positive constant
elsif try_static_assert("#{const} < 0", headers, opt)
neg = true
const = "-(#{const})"
elsif try_static_assert("#{const} == 0", headers, opt)
return 0
else
# not a constant
return nil
end
upper = 1
lower = 0
until try_static_assert("#{const} <= #{upper}", headers, opt)
lower = upper
upper <<= 1
end
return nil unless lower
while upper > lower + 1
mid = (upper + lower) / 2
if try_static_assert("#{const} > #{mid}", headers, opt)
lower = mid
else
upper = mid
end
end
upper = -upper if neg
return upper
else
src = %{#{includes}
#include <stdio.h>
/*top*/
int conftest_const = (int)(#{const});
int main() {printf("%d\\n", conftest_const); return 0;}
}
if try_link0(src, opt, &b)
xpopen("./conftest") do |f|
return Integer(f.gets)
end
end
end
nil
end
 
# You should use +have_func+ rather than +try_func+.
#
# [+func+] a String which contains a symbol name
# [+libs+] a String which contains library names.
# [+headers+] a String or an Array of strings which contains
# names of header files.
def try_func(func, libs, headers = nil, &b)
headers = cpp_include(headers)
case func
when /^&/
decltype = proc {|x|"const volatile void *#{x}"}
else
call = true
decltype = proc {|x| "void ((*#{x})())"}
end
try_link(<<"SRC", libs, &b) or
#{headers}
/*top*/
#{MAIN_DOES_NOTHING}
int t() { #{decltype["volatile p"]}; p = (#{decltype[]})#{func}; return 0; }
SRC
call && try_link(<<"SRC", libs, &b)
#{headers}
/*top*/
#{MAIN_DOES_NOTHING}
int t() { #{func}(); return 0; }
SRC
end
 
# You should use +have_var+ rather than +try_var+.
def try_var(var, headers = nil, &b)
headers = cpp_include(headers)
try_compile(<<"SRC", &b)
#{headers}
/*top*/
#{MAIN_DOES_NOTHING}
int t() { const volatile void *volatile p; p = &(&#{var})[0]; return 0; }
SRC
end
 
# Returns whether or not the +src+ can be preprocessed with the C preprocessor and
# matches with +pat+.
#
# If a block given, it is called with the source before compilation. You can
# modify the source in the block.
#
# [+pat+] a Regexp or a String
# [+src+] a String which contains a C source
# [+opt+] a String which contains preprocessor options
#
# Note:
# When pat is a Regexp the matching will be checked in process,
# otherwise egrep(1) will be invoked to check it.
def egrep_cpp(pat, src, opt = "", &b)
src = create_tmpsrc(src, &b)
xpopen(cpp_command('', opt)) do |f|
if Regexp === pat
puts(" ruby -ne 'print if #{pat.inspect}'")
f.grep(pat) {|l|
puts "#{f.lineno}: #{l}"
return true
}
false
else
puts(" egrep '#{pat}'")
begin
stdin = $stdin.dup
$stdin.reopen(f)
system("egrep", pat)
ensure
$stdin.reopen(stdin)
end
end
end
ensure
rm_f "conftest*"
log_src(src)
end
 
# This is used internally by the have_macro? method.
def macro_defined?(macro, src, opt = "", &b)
src = src.sub(/[^\n]\z/, "\\&\n")
try_compile(src + <<"SRC", opt, &b)
/*top*/
#ifndef #{macro}
# error
>>>>>> #{macro} undefined <<<<<<
#endif
SRC
end
 
# Returns whether or not
# * the +src+ can be compiled as a C source,
# * the result object can be linked with its depending libraries successfully,
# * the linked file can be invoked as an executable
# * and the executable exits successfully
# +opt+ is passed to the linker as options. Note that +$CFLAGS+ and +$LDFLAGS+
# are also passed to the linker.
#
# If a block given, it is called with the source before compilation. You can
# modify the source in the block.
#
# [+src+] a String which contains a C source
# [+opt+] a String which contains linker options
#
# @return true when the executable exits successfully, false when it fails, or
# nil when preprocessing, compilation or link fails.
def try_run(src, opt = "", &b)
if try_link0(src, opt, &b)
xsystem("./conftest")
else
nil
end
ensure
rm_f "conftest*"
end
 
def install_files(mfile, ifiles, map = nil, srcprefix = nil)
ifiles or return
ifiles.empty? and return
srcprefix ||= "$(srcdir)/#{srcprefix}".chomp('/')
RbConfig::expand(srcdir = srcprefix.dup)
dirs = []
path = Hash.new {|h, i| h[i] = dirs.push([i])[-1]}
ifiles.each do |files, dir, prefix|
dir = map_dir(dir, map)
prefix &&= %r|\A#{Regexp.quote(prefix)}/?|
if /\A\.\// =~ files
# install files which are in current working directory.
files = files[2..-1]
len = nil
else
# install files which are under the $(srcdir).
files = File.join(srcdir, files)
len = srcdir.size
end
f = nil
Dir.glob(files) do |fx|
f = fx
f[0..len] = "" if len
case File.basename(f)
when *$NONINSTALLFILES
next
end
d = File.dirname(f)
d.sub!(prefix, "") if prefix
d = (d.empty? || d == ".") ? dir : File.join(dir, d)
f = File.join(srcprefix, f) if len
path[d] << f
end
unless len or f
d = File.dirname(files)
d.sub!(prefix, "") if prefix
d = (d.empty? || d == ".") ? dir : File.join(dir, d)
path[d] << files
end
end
dirs
end
 
def install_rb(mfile, dest, srcdir = nil)
install_files(mfile, [["lib/**/*.rb", dest, "lib"]], nil, srcdir)
end
 
def append_library(libs, lib) # :no-doc:
format(LIBARG, lib) + " " + libs
end
 
def message(*s)
unless Logging.quiet and not $VERBOSE
printf(*s)
$stdout.flush
end
end
 
# This emits a string to stdout that allows users to see the results of the
# various have* and find* methods as they are tested.
#
# Internal use only.
#
def checking_for(m, fmt = nil)
f = caller[0][/in `([^<].*)'$/, 1] and f << ": " #` for vim #'
m = "checking #{/\Acheck/ =~ f ? '' : 'for '}#{m}... "
message "%s", m
a = r = nil
Logging::postpone do
r = yield
a = (fmt ? fmt % r : r ? "yes" : "no") << "\n"
"#{f}#{m}-------------------- #{a}\n"
end
message(a)
Logging::message "--------------------\n\n"
r
end
 
def checking_message(target, place = nil, opt = nil)
[["in", place], ["with", opt]].inject("#{target}") do |msg, (pre, noun)|
if noun
[[:to_str], [:join, ","], [:to_s]].each do |meth, *args|
if noun.respond_to?(meth)
break noun = noun.send(meth, *args)
end
end
msg << " #{pre} #{noun}" unless noun.empty?
end
msg
end
end
 
# :startdoc:
 
# Returns whether or not +macro+ is defined either in the common header
# files or within any +headers+ you provide.
#
# Any options you pass to +opt+ are passed along to the compiler.
#
def have_macro(macro, headers = nil, opt = "", &b)
checking_for checking_message(macro, headers, opt) do
macro_defined?(macro, cpp_include(headers), opt, &b)
end
end
 
# Returns whether or not the given entry point +func+ can be found within
# +lib+. If +func+ is nil, the 'main()' entry point is used by default.
# If found, it adds the library to list of libraries to be used when linking
# your extension.
#
# If +headers+ are provided, it will include those header files as the
# header files it looks in when searching for +func+.
#
# The real name of the library to be linked can be altered by
# '--with-FOOlib' configuration option.
#
def have_library(lib, func = nil, headers = nil, &b)
func = "main" if !func or func.empty?
lib = with_config(lib+'lib', lib)
checking_for checking_message("#{func}()", LIBARG%lib) do
if COMMON_LIBS.include?(lib)
true
else
libs = append_library($libs, lib)
if try_func(func, libs, headers, &b)
$libs = libs
true
else
false
end
end
end
end
 
# Returns whether or not the entry point +func+ can be found within the library
# +lib+ in one of the +paths+ specified, where +paths+ is an array of strings.
# If +func+ is nil , then the main() function is used as the entry point.
#
# If +lib+ is found, then the path it was found on is added to the list of
# library paths searched and linked against.
#
def find_library(lib, func, *paths, &b)
func = "main" if !func or func.empty?
lib = with_config(lib+'lib', lib)
paths = paths.collect {|path| path.split(File::PATH_SEPARATOR)}.flatten
checking_for "#{func}() in #{LIBARG%lib}" do
libpath = $LIBPATH
libs = append_library($libs, lib)
begin
until r = try_func(func, libs, &b) or paths.empty?
$LIBPATH = libpath | [paths.shift]
end
if r
$libs = libs
libpath = nil
end
ensure
$LIBPATH = libpath if libpath
end
r
end
end
 
# Returns whether or not the function +func+ can be found in the common
# header files, or within any +headers+ that you provide. If found, a
# macro is passed as a preprocessor constant to the compiler using the
# function name, in uppercase, prepended with 'HAVE_'.
#
# For example, if have_func('foo') returned true, then the HAVE_FOO
# preprocessor macro would be passed to the compiler.
#
def have_func(func, headers = nil, &b)
checking_for checking_message("#{func}()", headers) do
if try_func(func, $libs, headers, &b)
$defs.push(format("-DHAVE_%s", func.tr_cpp))
true
else
false
end
end
end
 
# Returns whether or not the variable +var+ can be found in the common
# header files, or within any +headers+ that you provide. If found, a
# macro is passed as a preprocessor constant to the compiler using the
# variable name, in uppercase, prepended with 'HAVE_'.
#
# For example, if have_var('foo') returned true, then the HAVE_FOO
# preprocessor macro would be passed to the compiler.
#
def have_var(var, headers = nil, &b)
checking_for checking_message(var, headers) do
if try_var(var, headers, &b)
$defs.push(format("-DHAVE_%s", var.tr_cpp))
true
else
false
end
end
end
 
# Returns whether or not the given +header+ file can be found on your system.
# If found, a macro is passed as a preprocessor constant to the compiler using
# the header file name, in uppercase, prepended with 'HAVE_'.
#
# For example, if have_header('foo.h') returned true, then the HAVE_FOO_H
# preprocessor macro would be passed to the compiler.
#
def have_header(header, preheaders = nil, &b)
checking_for header do
if try_header(cpp_include(preheaders)+cpp_include(header), &b)
$defs.push(format("-DHAVE_%s", header.tr_cpp))
true
else
false
end
end
end
 
# Returns whether or not the given +framework+ can be found on your system.
# If found, a macro is passed as a preprocessor constant to the compiler using
# the framework name, in uppercase, prepended with 'HAVE_FRAMEWORK_'.
#
# For example, if have_framework('Ruby') returned true, then the HAVE_FRAMEWORK_RUBY
# preprocessor macro would be passed to the compiler.
#
def have_framework(fw, &b)
checking_for fw do
src = cpp_include("#{fw}/#{fw}.h") << "\n" "int main(void){return 0;}"
if try_link(src, opt = "-framework #{fw}", &b)
$defs.push(format("-DHAVE_FRAMEWORK_%s", fw.tr_cpp))
$LDFLAGS << " " << opt
true
else
false
end
end
end
 
# Instructs mkmf to search for the given +header+ in any of the +paths+
# provided, and returns whether or not it was found in those paths.
#
# If the header is found then the path it was found on is added to the list
# of included directories that are sent to the compiler (via the -I switch).
#
def find_header(header, *paths)
message = checking_message(header, paths)
header = cpp_include(header)
checking_for message do
if try_header(header)
true
else
found = false
paths.each do |dir|
opt = "-I#{dir}".quote
if try_header(header, opt)
$INCFLAGS << " " << opt
found = true
break
end
end
found
end
end
end
 
# Returns whether or not the struct of type +type+ contains +member+. If
# it does not, or the struct type can't be found, then false is returned. You
# may optionally specify additional +headers+ in which to look for the struct
# (in addition to the common header files).
#
# If found, a macro is passed as a preprocessor constant to the compiler using
# the type name and the member name, in uppercase, prepended with 'HAVE_'.
#
# For example, if have_struct_member('struct foo', 'bar') returned true, then the
# HAVE_STRUCT_FOO_BAR preprocessor macro would be passed to the compiler.
#
# HAVE_ST_BAR is also defined for backward compatibility.
#
def have_struct_member(type, member, headers = nil, &b)
checking_for checking_message("#{type}.#{member}", headers) do
if try_compile(<<"SRC", &b)
#{cpp_include(headers)}
/*top*/
#{MAIN_DOES_NOTHING}
int s = (char *)&((#{type}*)0)->#{member} - (char *)0;
SRC
$defs.push(format("-DHAVE_%s_%s", type.tr_cpp, member.tr_cpp))
$defs.push(format("-DHAVE_ST_%s", member.tr_cpp)) # backward compatibility
true
else
false
end
end
end
 
# Returns whether or not the static type +type+ is defined.
#
# See also +have_type+
#
def try_type(type, headers = nil, opt = "", &b)
if try_compile(<<"SRC", opt, &b)
#{cpp_include(headers)}
/*top*/
typedef #{type} conftest_type;
int conftestval[sizeof(conftest_type)?1:-1];
SRC
$defs.push(format("-DHAVE_TYPE_%s", type.tr_cpp))
true
else
false
end
end
 
# Returns whether or not the static type +type+ is defined. You may
# optionally pass additional +headers+ to check against in addition to the
# common header files.
#
# You may also pass additional flags to +opt+ which are then passed along to
# the compiler.
#
# If found, a macro is passed as a preprocessor constant to the compiler using
# the type name, in uppercase, prepended with 'HAVE_TYPE_'.
#
# For example, if have_type('foo') returned true, then the HAVE_TYPE_FOO
# preprocessor macro would be passed to the compiler.
#
def have_type(type, headers = nil, opt = "", &b)
checking_for checking_message(type, headers, opt) do
try_type(type, headers, opt, &b)
end
end
 
# Returns where the static type +type+ is defined.
#
# You may also pass additional flags to +opt+ which are then passed along to
# the compiler.
#
# See also +have_type+.
#
def find_type(type, opt, *headers, &b)
opt ||= ""
fmt = "not found"
def fmt.%(x)
x ? x.respond_to?(:join) ? x.join(",") : x : self
end
checking_for checking_message(type, nil, opt), fmt do
headers.find do |h|
try_type(type, h, opt, &b)
end
end
end
 
# Returns whether or not the Constant +const+ is defined.
#
# See also +have_const+
#
def try_const(const, headers = nil, opt = "", &b)
const, type = *const
if try_compile(<<"SRC", opt, &b)
#{cpp_include(headers)}
/*top*/
typedef #{type || 'int'} conftest_type;
conftest_type conftestval = #{type ? '' : '(int)'}#{const};
SRC
$defs.push(format("-DHAVE_CONST_%s", const.tr_cpp))
true
else
false
end
end
 
# Returns whether or not the constant +const+ is defined. You may
# optionally pass the +type+ of +const+ as <code>[const, type]</code>,
# like as:
#
# have_const(%w[PTHREAD_MUTEX_INITIALIZER pthread_mutex_t], "pthread.h")
#
# You may also pass additional +headers+ to check against in addition
# to the common header files, and additional flags to +opt+ which are
# then passed along to the compiler.
#
# If found, a macro is passed as a preprocessor constant to the compiler using
# the type name, in uppercase, prepended with 'HAVE_CONST_'.
#
# For example, if have_const('foo') returned true, then the HAVE_CONST_FOO
# preprocessor macro would be passed to the compiler.
#
def have_const(const, headers = nil, opt = "", &b)
checking_for checking_message([*const].compact.join(' '), headers, opt) do
try_const(const, headers, opt, &b)
end
end
 
STRING_OR_FAILED_FORMAT = "%s"
# :stopdoc:
def STRING_OR_FAILED_FORMAT.%(x)
x ? super : "failed"
end
 
def typedef_expr(type, headers)
typename, member = type.split('.', 2)
prelude = cpp_include(headers).split(/$/)
prelude << "typedef #{typename} rbcv_typedef_;\n"
return "rbcv_typedef_", member, prelude
end
 
def try_signedness(type, member, headers = nil, opts = nil, &b)
raise ArgumentError, "don't know how to tell signedness of members" if member
if try_static_assert("(#{type})-1 < 0", headers, opts)
return -1
elsif try_static_assert("(#{type})-1 > 0", headers, opts)
return +1
end
end
 
# :startdoc:
 
# Returns the size of the given +type+. You may optionally specify additional
# +headers+ to search in for the +type+.
#
# If found, a macro is passed as a preprocessor constant to the compiler using
# the type name, in uppercase, prepended with 'SIZEOF_', followed by the type
# name, followed by '=X' where 'X' is the actual size.
#
# For example, if check_sizeof('mystruct') returned 12, then the
# SIZEOF_MYSTRUCT=12 preprocessor macro would be passed to the compiler.
#
def check_sizeof(type, headers = nil, opts = "", &b)
typedef, member, prelude = typedef_expr(type, headers)
prelude << "static #{typedef} *rbcv_ptr_;\n"
prelude = [prelude]
expr = "sizeof((*rbcv_ptr_)#{"." << member if member})"
fmt = STRING_OR_FAILED_FORMAT
checking_for checking_message("size of #{type}", headers), fmt do
if size = try_constant(expr, prelude, opts, &b)
$defs.push(format("-DSIZEOF_%s=%s", type.tr_cpp, size))
size
end
end
end
 
# Returns the signedness of the given +type+. You may optionally
# specify additional +headers+ to search in for the +type+.
#
# If the +type+ is found and is a numeric type, a macro is passed as a
# preprocessor constant to the compiler using the +type+ name, in
# uppercase, prepended with 'SIGNEDNESS_OF_', followed by the +type+
# name, followed by '=X' where 'X' is positive integer if the +type+ is
# unsigned, or negative integer if the +type+ is signed.
#
# For example, if size_t is defined as unsigned, then
# check_signedness('size_t') would returned +1 and the
# SIGNEDNESS_OF_SIZE_T=+1 preprocessor macro would be passed to the
# compiler, and SIGNEDNESS_OF_INT=-1 if check_signedness('int') is
# done.
#
def check_signedness(type, headers = nil, opts = nil, &b)
typedef, member, prelude = typedef_expr(type, headers)
signed = nil
checking_for("signedness of #{type}", STRING_OR_FAILED_FORMAT) do
signed = try_signedness(typedef, member, [prelude], opts, &b) or next nil
$defs.push("-DSIGNEDNESS_OF_%s=%+d" % [type.tr_cpp, signed])
signed < 0 ? "signed" : "unsigned"
end
signed
end
 
# Returns the convertible integer type of the given +type+. You may
# optionally specify additional +headers+ to search in for the +type+.
# _Convertible_ means actually same type, or typedefed from same type.
#
# If the +type+ is a integer type and _convertible_ type is found,
# following macros are passed as preprocessor constants to the
# compiler using the +type+ name, in uppercase.
#
# * 'TYPEOF_', followed by the +type+ name, followed by '=X' where 'X'
# is the found _convertible_ type name. * 'TYP2NUM' and 'NUM2TYP,
# where 'TYP' is the +type+ name in uppercase with replacing '_t'
# suffix with 'T', followed by '=X' where 'X' is the macro name to
# convert +type+ to +Integer+ object, and vice versa.
#
# For example, if foobar_t is defined as unsigned long, then
# convertible_int("foobar_t") would return "unsigned long", and define
# macros:
#
# #define TYPEOF_FOOBAR_T unsigned long
# #define FOOBART2NUM ULONG2NUM
# #define NUM2FOOBART NUM2ULONG
def convertible_int(type, headers = nil, opts = nil, &b)
type, macname = *type
checking_for("convertible type of #{type}", STRING_OR_FAILED_FORMAT) do
if UNIVERSAL_INTS.include?(type)
type
else
typedef, member, prelude = typedef_expr(type, headers, &b)
next unless signed = try_signedness(typedef, member, [prelude])
u = "unsigned " if signed > 0
prelude << "extern rbcv_typedef_ foo();"
compat = UNIVERSAL_INTS.find {|t|
try_compile([prelude, "extern #{u}#{t} foo();"].join("\n"), opts, :werror=>true, &b)
}
if compat
macname ||= type.sub(/_(?=t\z)/, '').tr_cpp
conv = (compat == "long long" ? "LL" : compat.upcase)
compat = "#{u}#{compat}"
$defs.push(format("-DTYPEOF_%s=%s", type.tr_cpp, compat.quote))
$defs.push(format("-DPRI_%s_PREFIX=PRI_%s_PREFIX", macname, conv))
conv = (u ? "U" : "") + conv
$defs.push(format("-D%s2NUM=%s2NUM", macname, conv))
$defs.push(format("-DNUM2%s=NUM2%s", macname, conv))
compat
end
end
end
end
# :stopdoc:
 
# Used internally by the what_type? method to determine if +type+ is a scalar
# pointer.
def scalar_ptr_type?(type, member = nil, headers = nil, &b)
try_compile(<<"SRC", &b) # pointer
#{cpp_include(headers)}
/*top*/
volatile #{type} conftestval;
#{MAIN_DOES_NOTHING}
int t() {return (int)(1-*(conftestval#{member ? ".#{member}" : ""}));}
SRC
end
 
# Used internally by the what_type? method to determine if +type+ is a scalar
# pointer.
def scalar_type?(type, member = nil, headers = nil, &b)
try_compile(<<"SRC", &b) # pointer
#{cpp_include(headers)}
/*top*/
volatile #{type} conftestval;
#{MAIN_DOES_NOTHING}
int t() {return (int)(1-(conftestval#{member ? ".#{member}" : ""}));}
SRC
end
 
# Used internally by the what_type? method to check if _typeof_ GCC
# extension is available.
def have_typeof?
return $typeof if defined?($typeof)
$typeof = %w[__typeof__ typeof].find do |t|
try_compile(<<SRC)
int rbcv_foo;
#{t}(rbcv_foo) rbcv_bar;
SRC
end
end
 
def what_type?(type, member = nil, headers = nil, &b)
m = "#{type}"
var = val = "*rbcv_var_"
func = "rbcv_func_(void)"
if member
m << "." << member
else
type, member = type.split('.', 2)
end
if member
val = "(#{var}).#{member}"
end
prelude = [cpp_include(headers).split(/^/)]
prelude << ["typedef #{type} rbcv_typedef_;\n",
"extern rbcv_typedef_ *#{func};\n",
"static rbcv_typedef_ #{var};\n",
]
type = "rbcv_typedef_"
fmt = member && !(typeof = have_typeof?) ? "seems %s" : "%s"
if typeof
var = "*rbcv_member_"
func = "rbcv_mem_func_(void)"
member = nil
type = "rbcv_mem_typedef_"
prelude[-1] << "typedef #{typeof}(#{val}) #{type};\n"
prelude[-1] << "extern #{type} *#{func};\n"
prelude[-1] << "static #{type} #{var};\n"
val = var
end
def fmt.%(x)
x ? super : "unknown"
end
checking_for checking_message(m, headers), fmt do
if scalar_ptr_type?(type, member, prelude, &b)
if try_static_assert("sizeof(*#{var}) == 1", prelude)
return "string"
end
ptr = "*"
elsif scalar_type?(type, member, prelude, &b)
unless member and !typeof or try_static_assert("(#{type})-1 < 0", prelude)
unsigned = "unsigned"
end
ptr = ""
else
next
end
type = UNIVERSAL_INTS.find do |t|
pre = prelude
unless member
pre += [["static #{unsigned} #{t} #{ptr}#{var};\n",
"extern #{unsigned} #{t} #{ptr}*#{func};\n"]]
end
try_static_assert("sizeof(#{ptr}#{val}) == sizeof(#{unsigned} #{t})", pre)
end
type or next
[unsigned, type, ptr].join(" ").strip
end
end
 
# This method is used internally by the find_executable method.
#
# Internal use only.
#
def find_executable0(bin, path = nil)
executable_file = proc do |name|
begin
stat = File.stat(name)
rescue SystemCallError
else
next name if stat.file? and stat.executable?
end
end
 
exts = config_string('EXECUTABLE_EXTS') {|s| s.split} || config_string('EXEEXT') {|s| [s]}
if File.expand_path(bin) == bin
return bin if executable_file.call(bin)
if exts
exts.each {|ext| executable_file.call(file = bin + ext) and return file}
end
return nil
end
if path ||= ENV['PATH']
path = path.split(File::PATH_SEPARATOR)
else
path = %w[/usr/local/bin /usr/ucb /usr/bin /bin]
end
file = nil
path.each do |dir|
return file if executable_file.call(file = File.join(dir, bin))
if exts
exts.each {|ext| executable_file.call(ext = file + ext) and return ext}
end
end
nil
end
 
# :startdoc:
 
# Searches for the executable +bin+ on +path+. The default path is your
# PATH environment variable. If that isn't defined, it will resort to
# searching /usr/local/bin, /usr/ucb, /usr/bin and /bin.
#
# If found, it will return the full path, including the executable name,
# of where it was found.
#
# Note that this method does not actually affect the generated Makefile.
#
def find_executable(bin, path = nil)
checking_for checking_message(bin, path) do
find_executable0(bin, path)
end
end
 
# :stopdoc:
 
def arg_config(config, default=nil, &block)
$arg_config << [config, default]
defaults = []
if default
defaults << default
elsif !block
defaults << nil
end
$configure_args.fetch(config.tr('_', '-'), *defaults, &block)
end
 
# :startdoc:
 
# Tests for the presence of a --with-<tt>config</tt> or --without-<tt>config</tt>
# option. Returns true if the with option is given, false if the without
# option is given, and the default value otherwise.
#
# This can be useful for adding custom definitions, such as debug information.
#
# Example:
#
# if with_config("debug")
# $defs.push("-DOSSL_DEBUG") unless $defs.include? "-DOSSL_DEBUG"
# end
#
def with_config(config, default=nil)
config = config.sub(/^--with[-_]/, '')
val = arg_config("--with-"+config) do
if arg_config("--without-"+config)
false
elsif block_given?
yield(config, default)
else
break default
end
end
case val
when "yes"
true
when "no"
false
else
val
end
end
 
# Tests for the presence of an --enable-<tt>config</tt> or
# --disable-<tt>config</tt> option. Returns true if the enable option is given,
# false if the disable option is given, and the default value otherwise.
#
# This can be useful for adding custom definitions, such as debug information.
#
# Example:
#
# if enable_config("debug")
# $defs.push("-DOSSL_DEBUG") unless $defs.include? "-DOSSL_DEBUG"
# end
#
def enable_config(config, default=nil)
if arg_config("--enable-"+config)
true
elsif arg_config("--disable-"+config)
false
elsif block_given?
yield(config, default)
else
return default
end
end
 
# Generates a header file consisting of the various macro definitions generated
# by other methods such as have_func and have_header. These are then wrapped in
# a custom #ifndef based on the +header+ file name, which defaults to
# 'extconf.h'.
#
# For example:
#
# # extconf.rb
# require 'mkmf'
# have_func('realpath')
# have_header('sys/utime.h')
# create_header
# create_makefile('foo')
#
# The above script would generate the following extconf.h file:
#
# #ifndef EXTCONF_H
# #define EXTCONF_H
# #define HAVE_REALPATH 1
# #define HAVE_SYS_UTIME_H 1
# #endif
#
# Given that the create_header method generates a file based on definitions
# set earlier in your extconf.rb file, you will probably want to make this
# one of the last methods you call in your script.
#
def create_header(header = "extconf.h")
message "creating %s\n", header
sym = header.tr_cpp
hdr = ["#ifndef #{sym}\n#define #{sym}\n"]
for line in $defs
case line
when /^-D([^=]+)(?:=(.*))?/
hdr << "#define #$1 #{$2 ? Shellwords.shellwords($2)[0].gsub(/(?=\t+)/, "\\\n") : 1}\n"
when /^-U(.*)/
hdr << "#undef #$1\n"
end
end
hdr << "#endif\n"
hdr = hdr.join
log_src(hdr, "#{header} is")
unless (IO.read(header) == hdr rescue false)
open(header, "wb") do |hfile|
hfile.write(hdr)
end
end
$extconf_h = header
end
 
# Sets a +target+ name that the user can then use to configure various 'with'
# options with on the command line by using that name. For example, if the
# target is set to "foo", then the user could use the --with-foo-dir command
# line option.
#
# You may pass along additional 'include' or 'lib' defaults via the +idefault+
# and +ldefault+ parameters, respectively.
#
# Note that dir_config only adds to the list of places to search for libraries
# and include files. It does not link the libraries into your application.
#
def dir_config(target, idefault=nil, ldefault=nil)
if dir = with_config(target + "-dir", (idefault unless ldefault))
defaults = Array === dir ? dir : dir.split(File::PATH_SEPARATOR)
idefault = ldefault = nil
end
 
idir = with_config(target + "-include", idefault)
$arg_config.last[1] ||= "${#{target}-dir}/include"
ldir = with_config(target + "-lib", ldefault)
$arg_config.last[1] ||= "${#{target}-dir}/lib"
 
idirs = idir ? Array === idir ? idir.dup : idir.split(File::PATH_SEPARATOR) : []
if defaults
idirs.concat(defaults.collect {|d| d + "/include"})
idir = ([idir] + idirs).compact.join(File::PATH_SEPARATOR)
end
unless idirs.empty?
idirs.collect! {|d| "-I" + d}
idirs -= Shellwords.shellwords($CPPFLAGS)
unless idirs.empty?
$CPPFLAGS = (idirs.quote << $CPPFLAGS).join(" ")
end
end
 
ldirs = ldir ? Array === ldir ? ldir.dup : ldir.split(File::PATH_SEPARATOR) : []
if defaults
ldirs.concat(defaults.collect {|d| d + "/lib"})
ldir = ([ldir] + ldirs).compact.join(File::PATH_SEPARATOR)
end
$LIBPATH = ldirs | $LIBPATH
 
[idir, ldir]
end
 
# :stopdoc:
 
# Handles meta information about installed libraries. Uses your platform's
# pkg-config program if it has one.
def pkg_config(pkg)
if pkgconfig = with_config("#{pkg}-config") and find_executable0(pkgconfig)
# iff package specific config command is given
get = proc {|opt| `#{pkgconfig} --#{opt}`.chomp}
elsif ($PKGCONFIG ||=
(pkgconfig = with_config("pkg-config", ("pkg-config" unless CROSS_COMPILING))) &&
find_executable0(pkgconfig) && pkgconfig) and
system("#{$PKGCONFIG} --exists #{pkg}")
# default to pkg-config command
get = proc {|opt| `#{$PKGCONFIG} --#{opt} #{pkg}`.chomp}
elsif find_executable0(pkgconfig = "#{pkg}-config")
# default to package specific config command, as a last resort.
get = proc {|opt| `#{pkgconfig} --#{opt}`.chomp}
end
if get
cflags = get['cflags']
ldflags = get['libs']
libs = get['libs-only-l']
ldflags = (Shellwords.shellwords(ldflags) - Shellwords.shellwords(libs)).quote.join(" ")
$CFLAGS += " " << cflags
$LDFLAGS += " " << ldflags
$libs += " " << libs
Logging::message "package configuration for %s\n", pkg
Logging::message "cflags: %s\nldflags: %s\nlibs: %s\n\n",
cflags, ldflags, libs
[cflags, ldflags, libs]
else
Logging::message "package configuration for %s is not found\n", pkg
nil
end
end
 
def with_destdir(dir)
dir = dir.sub($dest_prefix_pattern, '')
/\A\$[\(\{]/ =~ dir ? dir : "$(DESTDIR)"+dir
end
 
# Converts forward slashes to backslashes. Aimed at MS Windows.
#
# Internal use only.
#
def winsep(s)
s.tr('/', '\\')
end
 
# Converts native path to format acceptable in Makefile
#
# Internal use only.
#
if !CROSS_COMPILING
case CONFIG['build_os']
when 'mingw32'
def mkintpath(path)
# mingw uses make from msys and it needs special care
# converts from C:\some\path to /C/some/path
path = path.dup
path.tr!('\\', '/')
path.sub!(/\A([A-Za-z]):(?=\/)/, '/\1')
path
end
end
end
unless defined?(mkintpath)
def mkintpath(path)
path
end
end
 
def configuration(srcdir)
mk = []
vpath = $VPATH.dup
if !CROSS_COMPILING
case CONFIG['build_os']
when 'cygwin'
if CONFIG['target_os'] != 'cygwin'
vpath = vpath.map {|p| p.sub(/.*/, '$(shell cygpath -u \&)')}
end
end
end
CONFIG["hdrdir"] ||= $hdrdir
mk << %{
SHELL = /bin/sh
 
# V=0 quiet, V=1 verbose. other values don't work.
V = 0
Q1 = $(V:1=)
Q = $(Q1:0=@)
n=$(NULLCMD)
ECHO1 = $(V:1=@$n)
ECHO = $(ECHO1:0=@echo)
 
#### Start of system configuration section. ####
#{"top_srcdir = " + $top_srcdir.sub(%r"\A#{Regexp.quote($topdir)}/", "$(topdir)/") if $extmk}
srcdir = #{srcdir.gsub(/\$\((srcdir)\)|\$\{(srcdir)\}/) {mkintpath(CONFIG[$1||$2])}.quote}
topdir = #{mkintpath($extmk ? CONFIG["topdir"] : $topdir).quote}
hdrdir = #{mkintpath(CONFIG["hdrdir"]).quote}
arch_hdrdir = #{$arch_hdrdir.quote}
VPATH = #{vpath.join(CONFIG['PATH_SEPARATOR'])}
}
if $extmk
mk << "RUBYLIB =\n""RUBYOPT = -\n"
end
if destdir = CONFIG["prefix"][$dest_prefix_pattern, 1]
mk << "\nDESTDIR = #{destdir}\n"
end
CONFIG.each do |key, var|
next unless /prefix$/ =~ key
mk << "#{key} = #{with_destdir(var)}\n"
end
CONFIG.each do |key, var|
next if /^abs_/ =~ key
next if /^(?:src|top|hdr)dir$/ =~ key
next unless /dir$/ =~ key
mk << "#{key} = #{with_destdir(var)}\n"
end
if !$extmk and !$configure_args.has_key?('--ruby') and
sep = config_string('BUILD_FILE_SEPARATOR')
sep = ":/=#{sep}"
else
sep = ""
end
possible_command = (proc {|s| s if /top_srcdir/ !~ s} unless $extmk)
extconf_h = $extconf_h ? "-DRUBY_EXTCONF_H=\\\"$(RUBY_EXTCONF_H)\\\" " : $defs.join(" ") << " "
mk << %{
NULLCMD = #{CONFIG['NULLCMD']}
 
CC = #{CONFIG['CC']}
CXX = #{CONFIG['CXX']}
LIBRUBY = #{CONFIG['LIBRUBY']}
LIBRUBY_A = #{CONFIG['LIBRUBY_A']}
LIBRUBYARG_SHARED = #$LIBRUBYARG_SHARED
LIBRUBYARG_STATIC = #$LIBRUBYARG_STATIC
empty =
OUTFLAG = #{OUTFLAG}$(empty)
COUTFLAG = #{COUTFLAG}$(empty)
 
RUBY_EXTCONF_H = #{$extconf_h}
cflags = #{CONFIG['cflags']}
optflags = #{CONFIG['optflags']}
debugflags = #{CONFIG['debugflags']}
warnflags = #{$warnflags}
CFLAGS = #{$static ? '' : CONFIG['CCDLFLAGS']} #$CFLAGS $(ARCH_FLAG)
INCFLAGS = -I. #$INCFLAGS
DEFS = #{CONFIG['DEFS']}
CPPFLAGS = #{extconf_h}#{$CPPFLAGS}
CXXFLAGS = $(CFLAGS) #{CONFIG['CXXFLAGS']}
ldflags = #{$LDFLAGS}
dldflags = #{$DLDFLAGS}
ARCH_FLAG = #{$ARCH_FLAG}
DLDFLAGS = $(ldflags) $(dldflags) $(ARCH_FLAG)
LDSHARED = #{CONFIG['LDSHARED']}
LDSHAREDXX = #{config_string('LDSHAREDXX') || '$(LDSHARED)'}
AR = #{CONFIG['AR']}
EXEEXT = #{CONFIG['EXEEXT']}
 
RUBY_BASE_NAME = #{CONFIG['RUBY_BASE_NAME']}
RUBY_INSTALL_NAME = #{CONFIG['RUBY_INSTALL_NAME']}
RUBY_SO_NAME = #{CONFIG['RUBY_SO_NAME']}
arch = #{CONFIG['arch']}
sitearch = #{CONFIG['sitearch']}
ruby_version = #{RbConfig::CONFIG['ruby_version']}
ruby = #{$ruby}
RUBY = $(ruby#{sep})
RM = #{config_string('RM', &possible_command) || '$(RUBY) -run -e rm -- -f'}
RM_RF = #{'$(RUBY) -run -e rm -- -rf'}
RMDIRS = #{config_string('RMDIRS', &possible_command) || '$(RUBY) -run -e rmdir -- -p'}
MAKEDIRS = #{config_string('MAKEDIRS', &possible_command) || '@$(RUBY) -run -e mkdir -- -p'}
INSTALL = #{config_string('INSTALL', &possible_command) || '@$(RUBY) -run -e install -- -vp'}
INSTALL_PROG = #{config_string('INSTALL_PROG') || '$(INSTALL) -m 0755'}
INSTALL_DATA = #{config_string('INSTALL_DATA') || '$(INSTALL) -m 0644'}
COPY = #{config_string('CP', &possible_command) || '@$(RUBY) -run -e cp -- -v'}
 
#### End of system configuration section. ####
 
preload = #{defined?($preload) && $preload ? $preload.join(' ') : ''}
}
if $nmake == ?b
mk.each do |x|
x.gsub!(/^(MAKEDIRS|INSTALL_(?:PROG|DATA))+\s*=.*\n/) do
"!ifndef " + $1 + "\n" +
$& +
"!endif\n"
end
end
end
mk
end
# :startdoc:
 
# creates a stub Makefile.
#
def dummy_makefile(srcdir)
configuration(srcdir) << <<RULES << CLEANINGS
CLEANFILES = #{$cleanfiles.join(' ')}
DISTCLEANFILES = #{$distcleanfiles.join(' ')}
 
all install static install-so install-rb: Makefile
.PHONY: all install static install-so install-rb
.PHONY: clean clean-so clean-rb
 
RULES
end
 
# Processes the data contents of the "depend" file.
# Each line of this file is expected to be a file name.
#
# Returns the output of findings, in Makefile format.
#
def depend_rules(depend)
suffixes = []
depout = []
cont = implicit = nil
impconv = proc do
COMPILE_RULES.each {|rule| depout << (rule % implicit[0]) << implicit[1]}
implicit = nil
end
ruleconv = proc do |line|
if implicit
if /\A\t/ =~ line
implicit[1] << line
next
else
impconv[]
end
end
if m = /\A\.(\w+)\.(\w+)(?:\s*:)/.match(line)
suffixes << m[1] << m[2]
implicit = [[m[1], m[2]], [m.post_match]]
next
elsif RULE_SUBST and /\A(?!\s*\w+\s*=)[$\w][^#]*:/ =~ line
line.gsub!(%r"(\s)(?!\.)([^$(){}+=:\s\/\\,]+)(?=\s|\z)") {$1 + RULE_SUBST % $2}
end
depout << line
end
depend.each_line do |line|
line.gsub!(/\.o\b/, ".#{$OBJEXT}")
line.gsub!(/\$\((?:hdr|top)dir\)\/config.h/, $config_h)
line.gsub!(%r"\$\(hdrdir\)/(?!ruby(?![^:;/\s]))(?=[-\w]+\.h)", '\&ruby/')
if $nmake && /\A\s*\$\(RM|COPY\)/ =~ line
line.gsub!(%r"[-\w\./]{2,}"){$&.tr("/", "\\")}
line.gsub!(/(\$\((?!RM|COPY)[^:)]+)(?=\))/, '\1:/=\\')
end
if /(?:^|[^\\])(?:\\\\)*\\$/ =~ line
(cont ||= []) << line
next
elsif cont
line = (cont << line).join
cont = nil
end
ruleconv.call(line)
end
if cont
ruleconv.call(cont.join)
elsif implicit
impconv.call
end
unless suffixes.empty?
depout.unshift(".SUFFIXES: ." + suffixes.uniq.join(" .") + "\n\n")
end
depout.unshift("$(OBJS): $(RUBY_EXTCONF_H)\n\n") if $extconf_h
depout.flatten!
depout
end
 
# Generates the Makefile for your extension, passing along any options and
# preprocessor constants that you may have generated through other methods.
#
# The +target+ name should correspond the name of the global function name
# defined within your C extension, minus the 'Init_'. For example, if your
# C extension is defined as 'Init_foo', then your target would simply be 'foo'.
#
# If any '/' characters are present in the target name, only the last name
# is interpreted as the target name, and the rest are considered toplevel
# directory names, and the generated Makefile will be altered accordingly to
# follow that directory structure.
#
# For example, if you pass 'test/foo' as a target name, your extension will
# be installed under the 'test' directory. This means that in order to
# load the file within a Ruby program later, that directory structure will
# have to be followed, e.g. "require 'test/foo'".
#
# The +srcprefix+ should be used when your source files are not in the same
# directory as your build script. This will not only eliminate the need for
# you to manually copy the source files into the same directory as your build
# script, but it also sets the proper +target_prefix+ in the generated
# Makefile.
#
# Setting the +target_prefix+ will, in turn, install the generated binary in
# a directory under your RbConfig::CONFIG['sitearchdir'] that mimics your local
# filesystem when you run 'make install'.
#
# For example, given the following file tree:
#
# ext/
# extconf.rb
# test/
# foo.c
#
# And given the following code:
#
# create_makefile('test/foo', 'test')
#
# That will set the +target_prefix+ in the generated Makefile to 'test'. That,
# in turn, will create the following file tree when installed via the
# 'make install' command:
#
# /path/to/ruby/sitearchdir/test/foo.so
#
# It is recommended that you use this approach to generate your makefiles,
# instead of copying files around manually, because some third party
# libraries may depend on the +target_prefix+ being set properly.
#
# The +srcprefix+ argument can be used to override the default source
# directory, i.e. the current directory . It is included as part of the VPATH
# and added to the list of INCFLAGS.
#
def create_makefile(target, srcprefix = nil)
$target = target
libpath = $DEFLIBPATH|$LIBPATH
message "creating Makefile\n"
rm_f "conftest*"
if CONFIG["DLEXT"] == $OBJEXT
for lib in libs = $libs.split
lib.sub!(/-l(.*)/, %%"lib\\1.#{$LIBEXT}"%)
end
$defs.push(format("-DEXTLIB='%s'", libs.join(",")))
end
 
if target.include?('/')
target_prefix, target = File.split(target)
target_prefix[0,0] = '/'
else
target_prefix = ""
end
 
srcprefix ||= "$(srcdir)/#{srcprefix}".chomp('/')
RbConfig.expand(srcdir = srcprefix.dup)
 
ext = ".#{$OBJEXT}"
if not $objs
srcs = $srcs || Dir[File.join(srcdir, "*.{#{SRC_EXT.join(%q{,})}}")]
objs = srcs.inject(Hash.new {[]}) {|h, f| h[File.basename(f, ".*") << ext] <<= f; h}
$objs = objs.keys
unless objs.delete_if {|b, f| f.size == 1}.empty?
dups = objs.sort.map {|b, f|
"#{b[/.*\./]}{#{f.collect {|n| n[/([^.]+)\z/]}.join(',')}}"
}
abort "source files duplication - #{dups.join(", ")}"
end
else
$objs.collect! {|o| File.basename(o, ".*") << ext} unless $OBJEXT == "o"
srcs = $srcs || $objs.collect {|o| o.chomp(ext) << ".c"}
end
$srcs = srcs
 
target = nil if $objs.empty?
 
if target and EXPORT_PREFIX
if File.exist?(File.join(srcdir, target + '.def'))
deffile = "$(srcdir)/$(TARGET).def"
unless EXPORT_PREFIX.empty?
makedef = %{-pe "$_.sub!(/^(?=\\w)/,'#{EXPORT_PREFIX}') unless 1../^EXPORTS$/i"}
end
else
makedef = %{-e "puts 'EXPORTS', '#{EXPORT_PREFIX}' + 'Init_$(TARGET)'.sub(/\\..*\\z/,'')"}
end
if makedef
$cleanfiles << '$(DEFFILE)'
origdef = deffile
deffile = "$(TARGET)-$(arch).def"
end
end
origdef ||= ''
 
if $extout and $INSTALLFILES
$cleanfiles.concat($INSTALLFILES.collect {|files, dir|File.join(dir, files.sub(/\A\.\//, ''))})
$distcleandirs.concat($INSTALLFILES.collect {|files, dir| dir})
end
 
if $extmk and not $extconf_h
create_header
end
 
libpath = libpathflag(libpath)
 
dllib = target ? "$(TARGET).#{CONFIG['DLEXT']}" : ""
staticlib = target ? "$(TARGET).#$LIBEXT" : ""
mfile = open("Makefile", "wb")
conf = configuration(srcprefix)
conf = yield(conf) if block_given?
mfile.puts(conf)
mfile.print "
libpath = #{($DEFLIBPATH|$LIBPATH).join(" ")}
LIBPATH = #{libpath}
DEFFILE = #{deffile}
 
CLEANFILES = #{$cleanfiles.join(' ')}
DISTCLEANFILES = #{$distcleanfiles.join(' ')}
DISTCLEANDIRS = #{$distcleandirs.join(' ')}
 
extout = #{$extout && $extout.quote}
extout_prefix = #{$extout_prefix}
target_prefix = #{target_prefix}
LOCAL_LIBS = #{$LOCAL_LIBS}
LIBS = #{$LIBRUBYARG} #{$libs} #{$LIBS}
SRCS = #{srcs.collect(&File.method(:basename)).join(' ')}
OBJS = #{$objs.join(" ")}
TARGET = #{target}
DLLIB = #{dllib}
EXTSTATIC = #{$static || ""}
STATIC_LIB = #{staticlib unless $static.nil?}
#{!$extout && defined?($installed_list) ? "INSTALLED_LIST = #{$installed_list}\n" : ""}
" #"
# TODO: fixme
install_dirs.each {|d| mfile.print("%-14s= %s\n" % d) if /^[[:upper:]]/ =~ d[0]}
n = ($extout ? '$(RUBYARCHDIR)/' : '') + '$(TARGET)'
mfile.print "
TARGET_SO = #{($extout ? '$(RUBYARCHDIR)/' : '')}$(DLLIB)
CLEANLIBS = #{n}.#{CONFIG['DLEXT']} #{config_string('cleanlibs') {|t| t.gsub(/\$\*/) {n}}}
CLEANOBJS = *.#{$OBJEXT} #{config_string('cleanobjs') {|t| t.gsub(/\$\*/, "$(TARGET)#{deffile ? '-$(arch)': ''}")} if target} *.bak
 
all: #{$extout ? "install" : target ? "$(DLLIB)" : "Makefile"}
static: $(STATIC_LIB)#{$extout ? " install-rb" : ""}
.PHONY: all install static install-so install-rb
.PHONY: clean clean-so clean-rb
"
mfile.print CLEANINGS
fsep = config_string('BUILD_FILE_SEPARATOR') {|s| s unless s == "/"}
if fsep
sep = ":/=#{fsep}"
fseprepl = proc {|s|
s = s.gsub("/", fsep)
s = s.gsub(/(\$\(\w+)(\))/) {$1+sep+$2}
s = s.gsub(/(\$\{\w+)(\})/) {$1+sep+$2}
}
rsep = ":#{fsep}=/"
else
fseprepl = proc {|s| s}
sep = ""
rsep = ""
end
dirs = []
mfile.print "install: install-so install-rb\n\n"
sodir = (dir = "$(RUBYARCHDIR)").dup
mfile.print("install-so: ")
if target
f = "$(DLLIB)"
dest = "#{dir}/#{f}"
mfile.puts dir, "install-so: #{dest}"
if $extout
mfile.print "clean-so::\n"
mfile.print "\t@-$(RM) #{fseprepl[dest]}\n"
mfile.print "\t@-$(RMDIRS) #{fseprepl[dir]}#{$ignore_error}\n"
else
mfile.print "#{dest}: #{f}\n\t@-$(MAKEDIRS) $(@D#{sep})\n"
mfile.print "\t$(INSTALL_PROG) #{fseprepl[f]} $(@D#{sep})\n"
if defined?($installed_list)
mfile.print "\t@echo #{dir}/#{File.basename(f)}>>$(INSTALLED_LIST)\n"
end
end
else
mfile.puts "Makefile"
end
mfile.print("install-rb: pre-install-rb install-rb-default\n")
mfile.print("install-rb-default: pre-install-rb-default\n")
mfile.print("pre-install-rb: Makefile\n")
mfile.print("pre-install-rb-default: Makefile\n")
for sfx, i in [["-default", [["lib/**/*.rb", "$(RUBYLIBDIR)", "lib"]]], ["", $INSTALLFILES]]
files = install_files(mfile, i, nil, srcprefix) or next
for dir, *files in files
unless dirs.include?(dir)
dirs << dir
mfile.print "pre-install-rb#{sfx}: #{dir}\n"
end
for f in files
dest = "#{dir}/#{File.basename(f)}"
mfile.print("install-rb#{sfx}: #{dest} #{dir}\n")
mfile.print("#{dest}: #{f}\n")
mfile.print("\t$(Q) $(#{$extout ? 'COPY' : 'INSTALL_DATA'}) #{f} $(@D#{sep})\n")
if defined?($installed_list) and !$extout
mfile.print("\t@echo #{dest}>>$(INSTALLED_LIST)\n")
end
if $extout
mfile.print("clean-rb#{sfx}::\n")
mfile.print("\t@-$(RM) #{fseprepl[dest]}\n")
end
end
end
mfile.print "pre-install-rb#{sfx}:\n"
mfile.print("\t$(ECHO) installing#{sfx.sub(/^-/, " ")} #{target} libraries\n")
if $extout
dirs.uniq!
unless dirs.empty?
mfile.print("clean-rb#{sfx}::\n")
for dir in dirs.sort_by {|d| -d.count('/')}
mfile.print("\t@-$(RMDIRS) #{fseprepl[dir]}#{$ignore_error}\n")
end
end
end
end
dirs.unshift(sodir) if target and !dirs.include?(sodir)
dirs.each {|d| mfile.print "#{d}:\n\t$(Q) $(MAKEDIRS) $@\n"}
 
mfile.print <<-SITEINSTALL
 
site-install: site-install-so site-install-rb
site-install-so: install-so
site-install-rb: install-rb
 
SITEINSTALL
 
return unless target
 
mfile.puts SRC_EXT.collect {|e| ".path.#{e} = $(VPATH)"} if $nmake == ?b
mfile.print ".SUFFIXES: .#{SRC_EXT.join(' .')} .#{$OBJEXT}\n"
mfile.print "\n"
 
compile_command = "\n\t$(ECHO) compiling $(<#{rsep})\n\t$(Q) %s\n\n"
CXX_EXT.each do |e|
COMPILE_RULES.each do |rule|
mfile.printf(rule, e, $OBJEXT)
mfile.printf(compile_command, COMPILE_CXX)
end
end
C_EXT.each do |e|
COMPILE_RULES.each do |rule|
mfile.printf(rule, e, $OBJEXT)
mfile.printf(compile_command, COMPILE_C)
end
end
 
mfile.print "$(RUBYARCHDIR)/" if $extout
mfile.print "$(DLLIB): "
mfile.print "$(DEFFILE) " if makedef
mfile.print "$(OBJS) Makefile\n"
mfile.print "\t$(ECHO) linking shared-object #{target_prefix.sub(/\A\/(.*)/, '\1/')}$(DLLIB)\n"
mfile.print "\t@-$(RM) $(@#{sep})\n"
mfile.print "\t@-$(MAKEDIRS) $(@D)\n" if $extout
link_so = LINK_SO.gsub(/^/, "\t$(Q) ")
if srcs.any?(&%r"\.(?:#{CXX_EXT.join('|')})\z".method(:===))
link_so = link_so.sub(/\bLDSHARED\b/, '\&XX')
end
mfile.print link_so, "\n\n"
unless $static.nil?
mfile.print "$(STATIC_LIB): $(OBJS)\n\t@-$(RM) $(@#{sep})\n\t"
mfile.print "$(ECHO) linking static-library $(@#{rsep})\n\t$(Q) "
mfile.print "$(AR) #{config_string('ARFLAGS') || 'cru '}$@ $(OBJS)"
config_string('RANLIB') do |ranlib|
mfile.print "\n\t@-#{ranlib} $(DLLIB) 2> /dev/null || true"
end
end
mfile.print "\n\n"
if makedef
mfile.print "$(DEFFILE): #{origdef}\n"
mfile.print "\t$(ECHO) generating $(@#{rsep})\n"
mfile.print "\t$(Q) $(RUBY) #{makedef} #{origdef} > $@\n\n"
end
 
depend = File.join(srcdir, "depend")
if File.exist?(depend)
mfile.print("###\n", *depend_rules(File.read(depend)))
else
headers = %w[$(hdrdir)/ruby.h $(hdrdir)/ruby/defines.h]
if RULE_SUBST
headers.each {|h| h.sub!(/.*/, &RULE_SUBST.method(:%))}
end
headers << $config_h
headers << '$(RUBY_EXTCONF_H)' if $extconf_h
mfile.print "$(OBJS): ", headers.join(' '), "\n"
end
 
$makefile_created = true
ensure
mfile.close if mfile
end
 
# :stopdoc:
 
def init_mkmf(config = CONFIG, rbconfig = RbConfig::CONFIG)
$makefile_created = false
$arg_config = []
$enable_shared = config['ENABLE_SHARED'] == 'yes'
$defs = []
$extconf_h = nil
if $warnflags = CONFIG['warnflags'] and CONFIG['GCC'] == 'yes'
# turn warnings into errors only for bundled extensions.
config['warnflags'] = $warnflags.gsub(/(\A|\s)-Werror[-=]/, '\1-W')
RbConfig.expand(rbconfig['warnflags'] = config['warnflags'].dup)
config.each do |key, val|
RbConfig.expand(rbconfig[key] = val.dup) if /warnflags/ =~ val
end
$warnflags = config['warnflags'] unless $extmk
end
$CFLAGS = with_config("cflags", arg_config("CFLAGS", config["CFLAGS"])).dup
$ARCH_FLAG = with_config("arch_flag", arg_config("ARCH_FLAG", config["ARCH_FLAG"])).dup
$CPPFLAGS = with_config("cppflags", arg_config("CPPFLAGS", config["CPPFLAGS"])).dup
$LDFLAGS = with_config("ldflags", arg_config("LDFLAGS", config["LDFLAGS"])).dup
$INCFLAGS = "-I$(arch_hdrdir)"
$INCFLAGS << " -I$(hdrdir)/ruby/backward" unless $extmk
$INCFLAGS << " -I$(hdrdir) -I$(srcdir)"
$DLDFLAGS = with_config("dldflags", arg_config("DLDFLAGS", config["DLDFLAGS"])).dup
$LIBEXT = config['LIBEXT'].dup
$OBJEXT = config["OBJEXT"].dup
$LIBS = "#{config['LIBS']} #{config['DLDLIBS']}"
$LIBRUBYARG = ""
$LIBRUBYARG_STATIC = config['LIBRUBYARG_STATIC']
$LIBRUBYARG_SHARED = config['LIBRUBYARG_SHARED']
$DEFLIBPATH = [$extmk ? "$(topdir)" : "$(libdir)"]
$DEFLIBPATH.unshift(".")
$LIBPATH = []
$INSTALLFILES = []
$NONINSTALLFILES = [/~\z/, /\A#.*#\z/, /\A\.#/, /\.bak\z/i, /\.orig\z/, /\.rej\z/, /\.l[ao]\z/, /\.o\z/]
$VPATH = %w[$(srcdir) $(arch_hdrdir)/ruby $(hdrdir)/ruby]
 
$objs = nil
$srcs = nil
$libs = ""
if $enable_shared or RbConfig.expand(config["LIBRUBY"].dup) != RbConfig.expand(config["LIBRUBY_A"].dup)
$LIBRUBYARG = config['LIBRUBYARG']
end
 
$LOCAL_LIBS = ""
 
$cleanfiles = config_string('CLEANFILES') {|s| Shellwords.shellwords(s)} || []
$cleanfiles << "mkmf.log"
$distcleanfiles = config_string('DISTCLEANFILES') {|s| Shellwords.shellwords(s)} || []
$distcleandirs = config_string('DISTCLEANDIRS') {|s| Shellwords.shellwords(s)} || []
 
$extout ||= nil
$extout_prefix ||= nil
 
$arg_config.clear
dir_config("opt")
end
 
FailedMessage = <<MESSAGE
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
 
Provided configuration options:
MESSAGE
 
# Returns whether or not the Makefile was successfully generated. If not,
# the script will abort with an error message.
#
# Internal use only.
#
def mkmf_failed(path)
unless $makefile_created or File.exist?("Makefile")
opts = $arg_config.collect {|t, n| "\t#{t}#{n ? "=#{n}" : ""}\n"}
abort "*** #{path} failed ***\n" + FailedMessage + opts.join
end
end
 
# :startdoc:
 
init_mkmf
 
$make = with_config("make-prog", ENV["MAKE"] || "make")
make, = Shellwords.shellwords($make)
$nmake = nil
case
when $mswin
$nmake = ?m if /nmake/i =~ make
when $bccwin
$nmake = ?b if /Borland/i =~ `#{make} -h`
end
$ignore_error = $nmake ? '' : ' 2> /dev/null || true'
 
RbConfig::CONFIG["srcdir"] = CONFIG["srcdir"] =
$srcdir = arg_config("--srcdir", File.dirname($0))
$configure_args["--topsrcdir"] ||= $srcdir
if $curdir = arg_config("--curdir")
RbConfig.expand(curdir = $curdir.dup)
else
curdir = $curdir = "."
end
unless File.expand_path(RbConfig::CONFIG["topdir"]) == File.expand_path(curdir)
CONFIG["topdir"] = $curdir
RbConfig::CONFIG["topdir"] = curdir
end
$configure_args["--topdir"] ||= $curdir
$ruby = arg_config("--ruby", File.join(RbConfig::CONFIG["bindir"], CONFIG["ruby_install_name"]))
 
split = Shellwords.method(:shellwords).to_proc
 
EXPORT_PREFIX = config_string('EXPORT_PREFIX') {|s| s.strip}
 
hdr = ['#include "ruby.h"' "\n"]
config_string('COMMON_MACROS') do |s|
Shellwords.shellwords(s).each do |w|
w, v = w.split(/=/, 2)
hdr << "#ifndef #{w}"
hdr << "#define #{[w, v].compact.join(" ")}"
hdr << "#endif /* #{w} */"
end
end
config_string('COMMON_HEADERS') do |s|
Shellwords.shellwords(s).each {|w| hdr << "#include <#{w}>"}
end
COMMON_HEADERS = hdr.join("\n")
COMMON_LIBS = config_string('COMMON_LIBS', &split) || []
 
COMPILE_RULES = config_string('COMPILE_RULES', &split) || %w[.%s.%s:]
RULE_SUBST = config_string('RULE_SUBST')
COMPILE_C = config_string('COMPILE_C') || '$(CC) $(INCFLAGS) $(CPPFLAGS) $(CFLAGS) $(COUTFLAG)$@ -c $<'
COMPILE_CXX = config_string('COMPILE_CXX') || '$(CXX) $(INCFLAGS) $(CPPFLAGS) $(CXXFLAGS) $(COUTFLAG)$@ -c $<'
TRY_LINK = config_string('TRY_LINK') ||
"$(CC) #{OUTFLAG}conftest $(INCFLAGS) $(CPPFLAGS) " \
"$(CFLAGS) $(src) $(LIBPATH) $(LDFLAGS) $(ARCH_FLAG) $(LOCAL_LIBS) $(LIBS)"
LINK_SO = config_string('LINK_SO') ||
if CONFIG["DLEXT"] == $OBJEXT
"ld $(DLDFLAGS) -r -o $@ $(OBJS)\n"
else
"$(LDSHARED) #{OUTFLAG}$@ $(OBJS) " \
"$(LIBPATH) $(DLDFLAGS) $(LOCAL_LIBS) $(LIBS)"
end
LIBPATHFLAG = config_string('LIBPATHFLAG') || ' -L"%s"'
RPATHFLAG = config_string('RPATHFLAG') || ''
LIBARG = config_string('LIBARG') || '-l%s'
MAIN_DOES_NOTHING = config_string('MAIN_DOES_NOTHING') || 'int main() {return 0;}'
UNIVERSAL_INTS = config_string('UNIVERSAL_INTS') {|s| Shellwords.shellwords(s)} ||
%w[int short long long\ long]
 
sep = config_string('BUILD_FILE_SEPARATOR') {|s| ":/=#{s}" if s != "/"} || ""
CLEANINGS = "
clean-rb-default::
clean-rb::
clean-so::
clean: clean-so clean-rb-default clean-rb
\t\t@-$(RM) $(CLEANLIBS#{sep}) $(CLEANOBJS#{sep}) $(CLEANFILES#{sep})
 
distclean-rb-default::
distclean-rb::
distclean-so::
distclean: clean distclean-so distclean-rb-default distclean-rb
\t\t@-$(RM) Makefile $(RUBY_EXTCONF_H) conftest.* mkmf.log
\t\t@-$(RM) core ruby$(EXEEXT) *~ $(DISTCLEANFILES#{sep})
\t\t@-$(RMDIRS) $(DISTCLEANDIRS#{sep})#{$ignore_error}
 
realclean: distclean
"
 
if not $extmk and /\A(extconf|makefile).rb\z/ =~ File.basename($0)
END {mkmf_failed($0)}
end

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