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configure
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configure
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#!/usr/bin/env ruby
if ENV["RUBYLIB"]
STDERR.puts "ERROR: Please unset RUBYLIB to configure Rubinius"
exit 1
end
require 'rbconfig'
require 'tempfile'
require 'fileutils'
require 'stringio'
require 'digest/md5'
require 'net/http'
root = File.expand_path File.dirname(__FILE__)
require File.join(root, "kernel", "delta", "options")
class Configure
# Default settings only. All code that may depend on user-selected options
# must run after options are processed.
def initialize(root)
@log = Logger.new "configure.log"
@command_line = ARGV.dup
@log.log "Command line: #{@command_line.join(" ").inspect}"
@features = {}
@defines = []
@config = File.join(root, "config.rb")
# Platform settings
@host = `sh -c ./rakelib/config.guess`.chomp
@cpu = nil
@vendor = nil
@os = nil
@windows = nil
@darwin = nil
@bsd = nil
@linux = nil
@little_endian = false
@sizeof = {}
# Build tools
@cc = nil
@cxx = nil
@rake = nil
@tar = nil
@perl = nil
# Versions
@default_version = "18"
@version_list = ["18", "19"]
@supported_versions = ["18", "19", "20"]
@build_ruby = nil
# LLVM settings
@use_llvm = true
@llvm = :no
@llvm_path = nil
@llvm_configure = nil
@llvm_skip_system = false
@llvm_skip_prebuilt = false
@llvm_prebuilt_name = nil
@llvm_system_name = get_system_name
@llvm_version = "3.0"
@llvm_api_version = 300
@llvm_source = "llvm-3.0.tgz"
@llvm_source_dir = "llvm-3.0.src"
@llvm_source_url = "http://llvm.org/releases/3.0/llvm-3.0.tar.gz"
@llvm_asset_path = "http://asset.rubini.us/prebuilt"
@llvm_source_build = false
@llvm_generic_prebuilt = nil
@need_update_prebuilt = false
@llvm_parent_path = File.join(root, "vendor")
@llvm_default = File.join(@llvm_parent_path, "llvm")
@llvm_prebuilt_path = File.join(@llvm_parent_path, "prebuilt")
@llvm_include_path = File.join(@llvm_default, "include")
# System settings
@libc = nil
@x86_32 = false
@x86_64 = false
@fibers = false
@include_dirs = []
@lib_dirs = []
# File system paths
@sourcedir = root
@prefixdir = nil
@bindir = nil
@appdir = nil
@librarydir = nil
@runtimedir = nil
@kerneldir = nil
@sitedir = nil
@vendordir = nil
@mandir = nil
@gemsdir = nil
@libdir = nil
# TODO: fix this
@include18dir = nil # root + "/vm/capi/18/include"
@include19dir = nil # root + "/vm/capi/19/include"
@include20dir = nil # root + "/vm/capi/19/include"
@preserve_prefix = false
@program_name = "rbx"
@bin_links = ["rbx", "ruby", "rake", "gem", "irb", "rdoc", "ri"]
@use_bin_links = true
# Library configuration
@rb_readline = false
@vendor_zlib = false
# Essential settings (modify these for creating releases)
@libversion = "2.0"
@version = "#{@libversion}.0rc1"
@release_date = "2012-11-02"
@config_version = 163
end
# Set up system commands to run in cmd.exe on Windows. Either Windows
# or MRI on Windows has issues with subprocesses where the invocation
# of the subprocess will return before the subprocess has finished.
# This manifests in configure when uncompressing LLVM source returns
# but attempting to move the directory fails sporadically with an access
# exception. Adding the, essentially no-op, 'sleep 0' resolves this.
def msys_system(cmd)
old_system %[cmd.exe /C "#{cmd} && sleep 0"]
end
def msys_backquote(cmd)
old_backquote %[cmd.exe /C "#{cmd}"]
end
def expand(path)
File.expand_path(path)
end
def expand_install_dir(dir)
dir = expand dir
if !@preserve_prefix and File.directory?(dir) and dir !~ /(rubinius|rbx).*\/?$/
original = dir
dir += "/rubinius/#{@libversion}"
@log.write "The directory #{original} already exists, installing to #{dir}"
end
dir
end
def set_host
/([^-]+)-([^-]+)-(.*)/ =~ @host
@cpu, @vendor, @os = $1, $2, $3
# TODO: For better cross-compiling support, it may be necessary to
# use the feature facility to check for a define in the compiler.
@windows = (@host =~ /mingw|mswin/) != nil
@darwin = (@host =~ /darwin/) != nil
@bsd = (@host =~ /bsd/) != nil
@linux = (@host =~ /linux/) != nil
end
def set_system_commands
# Set up system commands to run in cmd.exe on Windows.
if @windows
alias :old_system :system
alias :old_backquote :`
alias :system :msys_system
alias :` :msys_backquote
end
end
def set_filesystem_paths
@prefixdir = @prefixdir ? expand_install_dir(@prefixdir) : @sourcedir
if @appdir
dir = expand_install_dir @appdir
@librarydir = dir + "/lib"
@runtimedir = dir + "/runtime"
@kerneldir = dir + "/kernel"
@sitedir = dir + "/site"
@vendordir = dir + "/vendor"
end
@bindir = @prefixdir + "/bin" unless @bindir
@librarydir = @prefixdir + "/lib" unless @librarydir
@runtimedir = @prefixdir + "/runtime" unless @runtimedir
@kerneldir = @prefixdir + "/kernel" unless @kerneldir
@sitedir = @prefixdir + "/site" unless @sitedir
@vendordir = @prefixdir + "/vendor" unless @vendordir
@mandir = @prefixdir + "/man" unless @mandir
@gemsdir = @prefixdir + "/gems" unless @gemsdir
@include18dir = @prefixdir + "/vm/capi/18/include" unless @include18dir
@include19dir = @prefixdir + "/vm/capi/19/include" unless @include19dir
@include20dir = @prefixdir + "/vm/capi/19/include" unless @include20dir
dirs = [@bindir, @librarydir, @runtimedir, @kerneldir, @sitedir, @vendordir,
@mandir, @gemsdir, @include18dir, @include19dir, @include20dir]
parts = dirs.map { |d| d.split "/" }
i = 0
total = parts[0].size
prefix = []
while i < total
part = parts[0][i]
break unless parts.all? { |p| p[i] == part }
prefix << part
i += 1
end
@prefixdir = prefix.join "/"
size = @prefixdir.size
dirs.each { |d| d.replace d[size..-1] }
unless @prefixdir == @sourcedir
@stagingdir = "#{@sourcedir}/staging"
@stagingdir = File.join @stagingdir, @prefixdir if @preserve_prefix
end
end
def options
@options = Rubinius::Options.new "Usage: configure [options]", 30
o = @options
o.left_align
o.doc " Configure settings"
o.on "--log-file", "NAME", "Write log to file NAME" do |name|
old_log = @log.path
@log = Logger.new name, false
@log.replace old_log
end
o.on "--rake", "NAME", "Use NAME as 'rake' during build" do |name|
@rake = name
end
o.on "--tar", "NAME", "Use NAME as 'tar'" do |name|
@tar = name
end
o.on "--perl", "NAME", "Use NAME as 'perl' during build" do |name|
@perl = name
end
o.doc "\n Language version settings"
o.on "--default-version", "VERSION", "Enable Ruby VERSION as the default" do |v|
version = normalize_versions v
if version.size > 1
failure "Only one version can be default, given: #{version.inspect}."
end
@default_version = version.first
unless @version_list.include? @default_version
failure "Requested default version #{@default_version} is not enabled."
end
end
o.on "--enable-version", "VERSION", "Enable Ruby VERSION support (eg 18,19)" do |v|
@version_list = normalize_versions v
@default_version = @version_list.first if @version_list.size == 1
end
o.doc "\n Compiler settings"
o.on "--cc", "COMPILER", "Compiler to use for C code (eg gcc, clang)" do |cc|
@cc = cc
end
o.on "--cxx", "COMPILER", "Compiler to use for C++ code (eg g++, clang++)" do |cxx|
@cxx = cxx
end
o.doc "\n LLVM settings"
o.on "--disable-llvm", "Don't build with LLVM" do
@use_llvm = false
end
o.on "--enable-llvm", "Enable llvm (default)" do
@use_llvm = true
end
o.on "--skip-system", "Don't consider a system LLVM installation" do
@llvm_skip_system = true
end
o.on "--skip-prebuilt", "Don't try to use a prebuilt version of LLVM" do
@llvm_skip_prebuilt = true
end
o.on "--system-name", "NAME", "Name of OS (eg fedora-8, ubuntu-10.04)" do |name|
@llvm_system_name = name
end
o.on "--prebuilt-name", "NAME", "Full name of LLVM prebuilt archive" do |name|
@llvm_prebuilt_name = name
end
o.on "--llvm-path", "PATH", "File system path to the directory containing LLVM" do |dir|
@llvm_path = dir
end
o.on "--llvm-config", "PROGRAM", "File system path to the llvm-config program" do |program|
@llvm_configure = program
end
o.on "--update-prebuilt", "Update prebuilt LLVM packages from the internet" do
@need_update_prebuilt = true
end
o.doc "\n System settings"
o.on "--with-include-dir", "DIR", "Add DIR to the default include search paths" do |dir|
@include_dirs << dir
end
o.on "--with-lib-dir", "DIR", "Add DIR to the default library search paths" do |dir|
@lib_dirs << dir
end
o.on "--with-opt-dir", "DIR", "Add DIR/include and DIR/lib to include and library search paths" do |dir|
@include_dirs << "#{dir}/include"
@lib_dirs << "#{dir}/lib" << "#{dir}/lib64"
end
o.on "--libc", "NAME", "Use NAME as the libc for FFI" do |name|
@libc = name
end
o.on "--host", "HOST", "Override guessed platform with HOST specification" do |host|
@log.write "------------------------------------------------------"
@log.write "\nChanging the platform specification can cause Rubinius"
@log.write "to malfunction. The current platform specification is:"
@log.write "\n#{@host}"
@log.write "\n------------------------------------------------------"
@host = host
end
o.doc "\n Program names"
o.on "--program-name", "NAME", "Build Rubinius executable as NAME" do |name|
@program_name = name
end
o.on "--bin-link", "NAME", "Create NAME as binary symlink to program name" do |name|
@bin_links << name
end
o.on "--no-bin-links", "Do not create any symlinks to program name" do
@use_bin_links = false
end
o.doc "\n File system paths for installing Rubinius"
o.on "-P", "--prefix", "PATH", "Install Rubinius in subdirectories of PATH" do |dir|
@prefixdir = dir
end
o.on "-B", "--bindir", "PATH", "Install Rubinius executable in PATH" do |dir|
@bindir = expand dir
end
o.on "-I", "--includedir", "PATH", "Install Rubinius C-API include files in PATH" do |dir|
dir = expand dir
@include18dir = dir + "/18"
@include19dir = dir + "/19"
@include20dir = dir + "/20"
end
o.on "-A", "--appdir", "PATH", "Install Ruby runtime and libraries in PATH" do |dir|
@appdir = dir
end
o.on "-L", "--libdir", "PATH", "Install Rubinius shared library in PATH" do |dir|
@libdir = dir
end
o.on "-M", "--mandir", "PATH", "Install man pages in PATH" do |dir|
@mandir = expand dir
end
o.on "-G", "--gemsdir", "PATH", "Install gems in PATH" do |dir|
@gemsdir = expand dir
end
o.on "--sitedir", "PATH", "Install site-specific Ruby code in PATH" do |dir|
@sitedir = expand dir
end
o.on "--vendordir", "PATH", "Install vendor-specific Ruby code in PATH" do |dir|
@vendordir = expand dir
end
o.on "--preserve-prefix", "Use the configure prefix for staging Rubinius to install" do
@preserve_prefix = true
end
o.doc "\n Optional features"
feature "execinfo", true
feature "C-readline", true
feature "ruby-readline", false
feature "vendor-zlib", false
feature "alloc-tracking", false
feature "fibers", true
o.doc "\n Help!"
o.on "--show", "Print the current configuration and exit" do
print_debug
exit 0
end
o.on "-V", "--verbose", "Print additional info" do
@verbose = true
end
o.help
o.doc ""
end
def feature(name, default_value=true)
@features[name] = ConfigurationToggle.new default_value
@options.on "--with-#{name}", "Enable #{name}" do
@features[name].configured = true
end
@options.on "--without-#{name}", "Disable #{name}" do
@features[name].configured = false
end
end
def parse(ary)
@options.parse ary
end
def normalize_versions(str)
versions = str.gsub(/[^\d,]/, "").split(',')
versions.each do |ver|
unless @supported_versions.include? ver
failure <<-EOM
Unsupported language version requested: #{ver}. Options are #{@supported_versions.join(", ")}
EOM
end
end
versions
end
def md5_checksum(md5_path, full_path)
return Digest::MD5.file(full_path).hexdigest == File.read(md5_path).strip.split(" ").first
end
def download(url, full_path)
begin
if ENV['http_proxy']
protocol, userinfo, host, port = URI::split(ENV['http_proxy'])
proxy_user, proxy_pass = userinfo.split(/:/) if userinfo
http = Net::HTTP::Proxy(host, port, proxy_user, proxy_pass)
else
http = Net::HTTP
end
@log.write " Downloading #{File.basename(full_path)}..."
http.get_response(URI(url)) do |res|
case res
when Net::HTTPNotFound
@log.write " Not found."
return false
when Net::HTTPClientError
@log.write " ERROR: #{res.inspect}"
return false
end
size = 0
total = res.header['Content-Length'].to_i
File.open full_path, "wb" do |f|
res.read_body do |chunk|
f << chunk
size += chunk.size
print "\r [ %d%% (%d of %d) ]" % [(size * 100) / total, size, total]
end
end
@log.write ": done!"
end
rescue Exception => e
File.unlink full_path if File.exists?(full_path)
@log.write " ERROR: #{e.message}"
return false
end
return true
end
# Downloads a pre-built LLVM library for a platform if the file exists. If
# an MD5 checksum file exists for the library, the checksum of the library
# is compared and the update fails if it does not match. If no MD5 checksum
# file exists, the library is used without check.
def update_prebuilt(file, warn)
full_path = File.join @llvm_prebuilt_path, file
md5_path = "#{full_path}.md5"
dir = File.dirname full_path
Dir.mkdir dir unless File.exists? dir
url = File.join @llvm_asset_path, file
unless File.exists? full_path
download url, full_path
unless File.exists? full_path
@log.write "ERROR. No #{file} available on server." if warn
return false
end
end
md5_url = "#{url}.md5"
download md5_url, md5_path
if File.exists? md5_path
unless md5_checksum md5_path, full_path
@log.write "ERROR. #{file} was corrupted or MD5 checksum is outdated."
return false
else
@log.write " MD5 checksum for prebuilt LLVM verified."
end
else
@log.write " No MD5 checksum for #{file} available on server."
@log.write " Using LLVM library without checksum validation."
end
@log.write " Prebuilt packages updated."
end
def verify_llvm_source
return false unless File.exists? @llvm_default
if File.exists?(@llvm_include_path)
@llvm = :svn
@llvm_configure = llvm_config_cmd "#{@llvm_default}/Release/bin/llvm-config"
return true
else
@log.write " Code doesn't appear to be proper LLVM tree!"
return false
end
end
def setup_source
@log.print " Checking for existing LLVM source tree:"
# Check if source already exists
if verify_llvm_source
@log.write " found!"
return true
else
@log.write " not found."
end
url = @llvm_source_url
path = File.join @llvm_prebuilt_path, @llvm_source
unless File.exists?(path)
@log.write " Downloading #{url}..."
return false unless download(url, path)
end
if File.exists?(path)
@log.print " Unpacking LLVM source: "
Dir.chdir @llvm_parent_path do
system "#{@tar} xzf #{path}"
FileUtils.mv @llvm_source_dir, "llvm"
end
@log.write "done!"
if verify_llvm_source
@log.write " Code appears to be a proper tree."
@llvm_source_build = true
return true
end
end
end
def prebuilt_files
files = [@llvm_generic_prebuilt]
# If we have a system name, try to find a prebuilt specifically
# for this system first.
if @llvm_system_name
files.unshift "llvm-#{@llvm_version}-#{@host}-#{@llvm_system_name}.tar.bz2"
end
# Try one for just the darwin major version (which increases for each
# minor OS X version. ie. 10.5 == 9.x.x, 10.6 == 10.x.x)
if m = /darwin(\d+)\.(\d+)\.(\d+)/.match(@os)
# Try this last
files.push "llvm-#{@llvm_version}-#{@cpu}-#{@vendor}-darwin#{m[1]}.tar.bz2"
end
# If the user specified a name, try that before anything.
files.unshift @llvm_prebuilt_name if @llvm_prebuilt_name
files
end
def setup_prebuilt
@log.write " Checking for prebuilt LLVM package..."
prebuilt_files.each do |file|
path = File.join @llvm_prebuilt_path, file
update_prebuilt file, false unless File.exists?(path)
if File.exists?(path)
@log.print " Unpacking prebuilt LLVM: #{file}: "
dir = File.join @llvm_parent_path, "llvm"
FileUtils.mkdir_p dir
Dir.chdir dir do
system "#{@tar} xjf #{path}"
end
@log.write "done!"
@llvm = :prebuilt
@llvm_configure = llvm_config_cmd "#{dir}/Release/bin/llvm-config"
return true
end
end
@log.write " Unable to download any LLVM prebuilt"
return false
end
def setup_path
@log.print "Validating '#{@llvm_path}': "
if File.directory? @llvm_path
["Release", "Debug"].each do |which|
sub = File.join(@llvm_path, which, "bin")
if File.directory? sub
@log.write "Ok! Using #{which}"
config = File.join(@llvm_path, which, "bin", "llvm-config")
@llvm = :config
@llvm_configure = llvm_config_cmd config
return true
end
end
@log.write "ERROR. Doesn't appear to be built already!"
return false
end
@log.write "ERROR. Path doesn't exist."
return false
end
def remove_default
if File.exists?(File.join(@llvm_default, "Makefile.common"))
failure "ABORT: Unwilling to override custom LLVM tree, please update it manually."
else
@log.write " Removing outdated tree..."
FileUtils.rm_rf(@llvm_default)
end
end
def setup_auto
update_prebuilt @llvm_generic_prebuilt, true if @need_update_prebuilt
@log.print " Checking for existing LLVM library tree: "
if File.directory?("#{@llvm_default}/Release")
config = llvm_config_cmd "#{@llvm_default}/Release/bin/llvm-config"
version = `#{config} --version`.strip
parts = version.sub(/svn$/, "").split(".").map { |i| i.to_i }
api_version = ("%d%02d" % parts[0..1]).to_i
if version >= "3.0"
# See if this has rtti turned off and reject it.
if `#{config} --cxxflags`.index("-fno-rtti")
@log.write "incorrectly configure (rtti is off)"
remove_default
else
@log.write "found!"
if File.exists?(File.join(@llvm_default, "Makefile.common"))
@llvm = :svn
else
@llvm = :prebuilt
end
@llvm_version = version
@llvm_api_version = api_version
@llvm_configure = config
return
end
else
@log.write "outdated (version #{version})"
remove_default
end
else
@log.write "not found."
end
# If they explicitly said where LLVM is, use that and fail hard.
if @llvm_path
unless setup_path
failure "ABORT: Path '#{@llvm_path}' not a proper LLVM path."
end
return
end
return if !@llvm_skip_system && setup_config
return if !@llvm_skip_prebuilt && setup_prebuilt
return if setup_source
@log.write "WARNING: Unable to configure for LLVM, disabling support."
@use_llvm = false
end
def setup_config
@log.print " Checking for 'llvm-config': "
config = @llvm_configure
if !config
which = ENV['PATH'].split(":").find do |path|
File.exists? File.join(path, "llvm-config")
end
if which
config = File.join(which, "llvm-config")
end
end
if config
version = `#{llvm_config_cmd config} --version`.strip
parts = version.sub(/svn$/, "").split(".").map { |i| i.to_i }
api_version = ("%d%02d" % parts[0..1]).to_i
if `#{llvm_config_cmd config} --cxxflags`.index("-fno-rtti")
@log.write "incorrectly configured llvm (rtti is off)"
elsif api_version < 300
@log.write "only LLVM 3.x is supported"
else
@log.write "found! (version #{version} - api: #{api_version})"
@llvm = :config
@llvm_configure = llvm_config_cmd config
@llvm_api_version = api_version
return true
end
else
@log.write "not found"
end
false
end
def c_includes
@include_dirs.map do |d|
"-I#{d}"
end.join(" ")
end
def c_libs
@lib_dirs.map do |d|
"-L#{d}"
end.join(" ")
end
def env(which)
ENV[which] || ""
end
def default_link_libs
libs = []
unless @host =~ /haiku/
libs << "m"
end
libs
end
def failure(message=nil)
message ||= "'configure' has failed."
@log.error message
STDERR.puts "\n#{message} Please check configure.log for more details."
exit 1
end
def check_tools
@cc ||= ENV['CC'] || 'gcc'
@cxx ||= ENV['CXX'] || 'g++'
check_tool_version @cc, '-dumpversion', [4, 1]
check_tool_version @cxx, '-dumpversion', [4, 1]
check_tool_version 'bison', '--version', [2, 3]
@rake = ENV['RAKE'] || 'rake'
@tar = ENV['TAR'] || (@windows ? 'bsdtar' : 'tar')
@perl = ENV['PERL'] || 'perl'
@gcc_major = `#{@cc} -dumpversion`.strip.split(".")[0,2].join(".")
if @host == "i686-pc-linux-gnu" || @host == "x86_64-unknown-linux-gnu"
@llvm_generic_prebuilt = "llvm-#{@llvm_version}-#{@host}-#{@gcc_major}.tar.bz2"
else
@llvm_generic_prebuilt = "llvm-#{@llvm_version}-#{@host}.tar.bz2"
end
@user_cflags = ENV['CFLAGS']
@user_cppflags = ENV['CPPFLAGS']
@user_ldflags = ENV['LDFLAGS']
# TODO: add conditionals for platforms
if RbConfig::CONFIG["build_os"] =~ /darwin/
@ldshared = "#{@cc} -bundle -undefined suppress -flat_namespace"
else
@ldshared = "#{@cc} -shared"
end
end
def check_program(run=true, link_libs=[])
begin
basename = "rbx-configure-test"
source = basename + ".cpp"
File.open source, "wb" do |f|
yield f
end
File.open source, "rb" do |f|
@log.log f.read
end
libs = (default_link_libs + link_libs).map { |l| "-l#{l}" }.join(" ")
cmd = "#{@cxx} #{env('CPPFLAGS')} #{env('CXXFLAGS')} #{env('LDFLAGS')} -o #{basename} #{source} #{c_includes} #{c_libs} -lstdc++ #{libs} >>#{@log.path} 2>&1"
@log.log cmd
system cmd
return $?.exitstatus unless run
unless $?.exitstatus == 0
failure "Compiling configure test program failed."
end
system expand("./#{basename}")
return $?.exitstatus
ensure
File.delete(*Dir["#{basename}*"])
end
end
def write_have_defines(f)
f.puts
@defines.each { |d| f.puts "#define #{d.ljust(20)} 1" }
end
def write_have_sizeof_defines(f)
f.puts
@sizeof.keys.sort.each { |k| f.puts "#define HAVE_#{k}".ljust(30) + "1" }
end
def write_sizeof_defines(f)
f.puts
@sizeof.keys.sort.each { |k| f.puts "#define SIZEOF_#{k}".ljust(30) + @sizeof[k].to_s }
end
def sizeof_typename(type)
if type =~ /(\*+)$/
name = "#{type[0...-$1.size]}#{"p" * $1.size}"
else
name = type
end
name.gsub(/\W/, "_").upcase
end
def sizeof(type)
@sizeof[sizeof_typename(type)] or failure("Unknown type: '#{type}'.")
end
def detect_sizeof(type, includes=[])
@log.print "Checking sizeof(#{type}): "
size = check_program do |f|
src = includes.map { |include| "#include <#{include}>" }.join("\n")
src += <<-EOP
#include <stddef.h>
int main() { return sizeof(#{type}); }
EOP
f.puts src
@log.log src
end
@sizeof[sizeof_typename(type)] = size
@log.write "#{size} bytes"
end
def detect_endian
@log.print "Checking platform endianness: "
status = check_program do |f|
src = "int main() { int one = 1; return (*((char*)&one)) == 1 ? 0 : 1; }"
f.puts src
@log.log src
end
@little_endian = (status == 0)
@log.write @little_endian ? "little endian" : "big endian"
end
def detect_tr1_hash
@log.print "Checking tr1/hash definition: "
status = check_program(false) do |f|
src = <<-EOP
#include <stdint.h>
#include <tr1/unordered_map>
typedef std::tr1::unordered_map<uint64_t, void*> X;
int main() { X x; return 0; }
EOP
f.puts src
@log.log src
end
@tr1_hash = (status == 0)
@log.write @tr1_hash ? "found" : "not found"
end
def detect_x86
print "Checking for x86_32: "
if sizeof("long") == 4
status = check_program do |f|
src = <<-EOP
int main() {
#if defined(i386) || defined(__i386__) || defined(__i386)
return 1;
#else
return 0;
#endif
}
EOP
f.puts src
@log.log src
end
@x86_32 = (status == 1)
end
puts @x86_32 ? "yes" : "no"
return if @x86_32
print "Checking for x86_64: "
status = check_program do |f|
src = <<-EOP
int main() {
#if defined(__x86_64) || defined(__x86_64__)
return 1;
#else
return 0;
#endif
}
EOP
f.puts src
@log.log src
end
@x86_64 = (status == 1)
puts @x86_64 ? "yes" : "no"
end
def detect_curses
@log.print "Checking curses library: "
src = <<-EOP
#include <curses.h>
#include <term.h>
int main() { return tgetnum(""); }
EOP
["curses", "ncurses", "termcap"].each do |lib|
status = check_program(false, [lib]) do |f|
f.puts src
@log.log src
end
if status == 0
@curses = lib
break
end