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  • mkmf.rb

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Public Instance Methods

append_library(libs, lib) click to toggle source
 
               # File mkmf.rb, line 533
def append_library(libs, lib)
  format(LIBARG, lib) + " " + libs
end
            
arg_config(config, *defaults, &block) click to toggle source
 
               # File mkmf.rb, line 887
def arg_config(config, *defaults, &block)
  $arg_config << [config, *defaults]
  defaults << nil if !block and defaults.empty?
  $configure_args.fetch(config.tr('_', '-'), *defaults, &block)
end
            
cc_command(opt="") click to toggle source
 
               # File mkmf.rb, line 282
def cc_command(opt="")
  conf = Config::CONFIG.merge('hdrdir' => $hdrdir.quote, 'srcdir' => $srcdir.quote)
  Config::expand("$(CC) #$INCFLAGS #$CPPFLAGS #$CFLAGS #$ARCH_FLAG #{opt} -c #{CONFTEST_C}",
                 conf)
end
            
check_sizeof(type, headers = nil, &b) click to toggle source

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.

 
               # File mkmf.rb, line 793
def check_sizeof(type, headers = nil, &b)
  expr = "sizeof(#{type})"
  fmt = "%d"
  def fmt.%(x)
    x ? super : "failed"
  end
  checking_for checking_message("size of #{type}", headers), fmt do
    if size = try_constant(expr, headers, &b)
      $defs.push(format("-DSIZEOF_%s=%d", type.upcase.tr_s("^A-Z0-9_", "_"), size))
      size
    end
  end
end
            
checking_for(m, fmt = nil) click to toggle source
 
               # File mkmf.rb, line 544
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
            
checking_message(target, place = nil, opt = nil) click to toggle source
 
               # File mkmf.rb, line 559
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
            
config_string(key, config = CONFIG) click to toggle source
 
               # File mkmf.rb, line 66
def config_string(key, config = CONFIG)
  s = config[key] and !s.empty? and block_given? ? yield(s) : s
end
            
configuration(srcdir) click to toggle source
 
               # File mkmf.rb, line 1057
def configuration(srcdir)
  mk = []
  vpath = %w[$(srcdir) $(topdir) $(hdrdir)]
  if !CROSS_COMPILING
    case CONFIG['build_os']
    when 'cygwin'
      if CONFIG['target_os'] != 'cygwin'
        vpath.each {|p| p.sub!(/.*/, '$(shell cygpath -u \&)')}
      end
    when 'msdosdjgpp'
      CONFIG['PATH_SEPARATOR'] = ';'
    end
  end
  mk << %Q{
SHELL = /bin/sh

#### Start of system configuration section. ####

srcdir = #{srcdir.gsub(/\$\((srcdir)\)|\$\{(srcdir)\}/) {mkintpath(CONFIG[$1||$2])}.quote}
topdir = #{mkintpath($extmk ? CONFIG["topdir"] : $topdir).quote}
hdrdir = #{$extmk ? mkintpath(CONFIG["hdrdir"]).quote : '$(topdir)'}
VPATH = #{vpath.join(CONFIG['PATH_SEPARATOR'])}
}
  if $extmk
    mk << "RUBYLIB = -\nRUBYOPT = -rpurelib.rb\n"
  end
  if destdir = CONFIG["prefix"][$dest_prefix_pattern, 1]
    mk << "\nDESTDIR = #{destdir}\n"
  end
  CONFIG.each do |key, var|
    next unless /prefix$/ =~ key
    mk << "#{key} = #{with_destdir(var)}\n"
  end
  CONFIG.each do |key, var|
    next if /^abs_/ =~ key
    next unless /^(?:src|top|hdr|(.*))dir$/ =~ key and $1
    mk << "#{key} = #{with_destdir(var)}\n"
  end
  if !$extmk and !$configure_args.has_key?('--ruby') and
      sep = config_string('BUILD_FILE_SEPARATOR')
    sep = ":/=#{sep}"
  else
    sep = ""
  end
  extconf_h = $extconf_h ? "-DRUBY_EXTCONF_H=\\\"$(RUBY_EXTCONF_H)\\\" " : $defs.join(" ")<<" "
  mk << %Q{
CC = #{CONFIG['CC']}
LIBRUBY = #{CONFIG['LIBRUBY']}
LIBRUBY_A = #{CONFIG['LIBRUBY_A']}
LIBRUBYARG_SHARED = #$LIBRUBYARG_SHARED
LIBRUBYARG_STATIC = #$LIBRUBYARG_STATIC

RUBY_EXTCONF_H = #{$extconf_h}
CFLAGS   = #{$static ? '' : CONFIG['CCDLFLAGS']} #$CFLAGS #$ARCH_FLAG
INCFLAGS = -I. #$INCFLAGS
DEFS     = #{CONFIG['DEFS']}
CPPFLAGS = #{extconf_h}#{$CPPFLAGS}
CXXFLAGS = $(CFLAGS) #{CONFIG['CXXFLAGS']}
DLDFLAGS = #$LDFLAGS #$DLDFLAGS #$ARCH_FLAG
LDSHARED = #{CONFIG['LDSHARED']}
AR = #{CONFIG['AR']}
EXEEXT = #{CONFIG['EXEEXT']}

RUBY_INSTALL_NAME = #{CONFIG['RUBY_INSTALL_NAME']}
RUBY_SO_NAME = #{CONFIG['RUBY_SO_NAME']}
arch = #{CONFIG['arch']}
sitearch = #{CONFIG['sitearch']}
ruby_version = #{Config::CONFIG['ruby_version']}
ruby = #{$ruby}
RUBY = $(ruby#{sep})
RM = #{config_string('RM') || '$(RUBY) -run -e rm -- -f'}
MAKEDIRS = #{config_string('MAKEDIRS') || '@$(RUBY) -run -e mkdir -- -p'}
INSTALL = #{config_string('INSTALL') || '@$(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') || '@$(RUBY) -run -e cp -- -v'}

#### End of system configuration section. ####

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
            
cpp_command(outfile, opt="") click to toggle source
 
               # File mkmf.rb, line 288
def cpp_command(outfile, opt="")
  conf = Config::CONFIG.merge('hdrdir' => $hdrdir.quote, 'srcdir' => $srcdir.quote)
  Config::expand("$(CPP) #$INCFLAGS #$CPPFLAGS #$CFLAGS #{opt} #{CONFTEST_C} #{outfile}",
                 conf)
end
            
cpp_include(header) click to toggle source
 
               # File mkmf.rb, line 327
def cpp_include(header)
  if header
    header = [header] unless header.kind_of? Array
    header.map {|h| "#include <#{h}>\n"}.join
  else
    ""
  end
end
            
create_header(header = "extconf.h") click to toggle source
 
               # File mkmf.rb, line 926
def create_header(header = "extconf.h")
  message "creating %s\n", header
  sym = header.tr("a-z./\055", "A-Z___")
  hdr = ["#ifndef #{sym}\n#define #{sym}\n"]
  for line in $defs
    case line
    when /^-D([^=]+)(?:=(.*))?/
      hdr << "#define #$1 #{$2 ? Shellwords.shellwords($2)[0] : 1}\n"
    when /^-U(.*)/
      hdr << "#undef #$1\n"
    end
  end
  hdr << "#endif\n"
  hdr = hdr.join
  unless (IO.read(header) == hdr rescue false)
    open(header, "w") do |hfile|
      hfile.write(hdr)
    end
  end
  $extconf_h = header
end
            
create_makefile(target, srcprefix = nil) click to toggle source

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’”.

 
               # File mkmf.rb, line 1177
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 = $libs.split
      lib.sub!(/-l(.*)/, %Q"lib\\1.#{$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)'
  Config::expand(srcdir = srcprefix.dup)

  if not $objs
    $objs = []
    srcs = Dir[File.join(srcdir, "*.{#{SRC_EXT.join(%q{,})}}")]
    for f in srcs
      obj = File.basename(f, ".*") << ".o"
      $objs.push(obj) unless $objs.index(obj)
    end
  elsif !(srcs = $srcs)
    srcs = $objs.collect {|obj| obj.sub(/\.o\z/, '.c')}
  end
  $srcs = srcs
  for i in $objs
    i.sub!(/\.o\z/, ".#{$OBJEXT}")
  end
  $objs = $objs.join(" ")

  target = nil if $objs == ""

  if target and EXPORT_PREFIX
    if File.exist?(File.join(srcdir, target + '.def'))
      deffile = "$(srcdir)/$(TARGET).def"
      unless EXPORT_PREFIX.empty?
        makedef = %Q{-pe "sub!(/^(?=\\w)/,'#{EXPORT_PREFIX}') unless 1../^EXPORTS$/i"}
      end
    else
      makedef = %Q{-e "puts 'EXPORTS', '#{EXPORT_PREFIX}Init_$(TARGET)'"}
    end
    if makedef
      $distcleanfiles << '$(DEFFILE)'
      origdef = deffile
      deffile = "$(TARGET)-$(arch).def"
    end
  end
  origdef ||= ''

  libpath = libpathflag(libpath)

  dllib = target ? "$(TARGET).#{CONFIG['DLEXT']}" : ""
  staticlib = target ? "$(TARGET).#$LIBEXT" : ""
  mfile = open("Makefile", "wb")
  mfile.print configuration(srcprefix)
  mfile.print "
libpath = #{($DEFLIBPATH|$LIBPATH).join(" ")}
LIBPATH = #{libpath}
DEFFILE = #{deffile}

CLEANFILES = #{$cleanfiles.join(' ')}
DISTCLEANFILES = #{$distcleanfiles.join(' ')}

extout = #{$extout}
extout_prefix = #{$extout_prefix}
target_prefix = #{target_prefix}
LOCAL_LIBS = #{$LOCAL_LIBS}
LIBS = #{$LIBRUBYARG} #{$libs} #{$LIBS}
SRCS = #{srcs.collect(&File.method(:basename)).join(' ')}
OBJS = #{$objs}
TARGET = #{target}
DLLIB = #{dllib}
EXTSTATIC = #{$static || ""}
STATIC_LIB = #{staticlib unless $static.nil?}
#{!$extout && defined?($installed_list) ? "INSTALLED_LIST = #{$installed_list}\n" : ""}
"
  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']} #{n}il? #{n}tds #{n}map
CLEANOBJS     = *.#{$OBJEXT} *.#{$LIBEXT} *.s[ol] *.pdb *.exp *.bak

all:            #{$extout ? "install" : target ? "$(DLLIB)" : "Makefile"}
static:         $(STATIC_LIB)#{$extout ? " install-rb" : ""}
"
  mfile.print CLEANINGS
  dirs = []
  mfile.print "install: install-so install-rb\n\n"
  sodir = (dir = "$(RUBYARCHDIR)").dup
  mfile.print("install-so: #{dir}\n")
  if target
    f = "$(DLLIB)"
    dest = "#{dir}/#{f}"
    mfile.print "install-so: #{dest}\n"
    unless $extout
      mfile.print "#{dest}: #{f}\n"
      if (sep = config_string('BUILD_FILE_SEPARATOR'))
        f.gsub!("/", sep)
        dir.gsub!("/", sep)
        sep = ":/="+sep
        f.gsub!(/(\$\(\w+)(\))/) {$1+sep+$2}
        f.gsub!(/(\$\{\w+)(\})/) {$1+sep+$2}
        dir.gsub!(/(\$\(\w+)(\))/) {$1+sep+$2}
        dir.gsub!(/(\$\{\w+)(\})/) {$1+sep+$2}
      end
      mfile.print "\t$(INSTALL_PROG) #{f} #{dir}\n"
      if defined?($installed_list)
        mfile.print "\t@echo #{dir}/#{File.basename(f)}>>$(INSTALLED_LIST)\n"
      end
    end
  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"]]], ["", $INSTALLFILES]]
    files = install_files(mfile, i, nil, srcprefix) or next
    for dir, *files in files
      unless dirs.include?(dir)
        dirs << dir
        mfile.print "pre-install-rb#{sfx}: #{dir}\n"
      end
      files.each do |f|
        dest = "#{dir}/#{File.basename(f)}"
        mfile.print("install-rb#{sfx}: #{dest}\n")
        mfile.print("#{dest}: #{f}\n\t$(#{$extout ? 'COPY' : 'INSTALL_DATA'}) ")
        sep = config_string('BUILD_FILE_SEPARATOR')
        if sep
          f = f.gsub("/", sep)
          sep = ":/="+sep
          f = f.gsub(/(\$\(\w+)(\))/) {$1+sep+$2}
          f = f.gsub(/(\$\{\w+)(\})/) {$1+sep+$2}
        else
          sep = ""
        end
        mfile.print("#{f} $(@D#{sep})\n")
        if defined?($installed_list) and !$extout
          mfile.print("\t@echo #{dest}>>$(INSTALLED_LIST)\n")
        end
      end
    end
  end
  dirs.unshift(sodir) if target and !dirs.include?(sodir)
  dirs.each {|dir| mfile.print "#{dir}:\n\t$(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 {|ext| ".path.#{ext} = $(VPATH)"} if $nmake == ?b
  mfile.print ".SUFFIXES: .#{SRC_EXT.join(' .')} .#{$OBJEXT}\n"
  mfile.print "\n"

  CXX_EXT.each do |ext|
    COMPILE_RULES.each do |rule|
      mfile.printf(rule, ext, $OBJEXT)
      mfile.printf("\n\t%s\n\n", COMPILE_CXX)
    end
  end
  %w[c].each do |ext|
    COMPILE_RULES.each do |rule|
      mfile.printf(rule, ext, $OBJEXT)
      mfile.printf("\n\t%s\n\n", 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@-$(RM) $@\n"
  mfile.print "\t@-$(MAKEDIRS) $(@D)\n" if $extout
  link_so = LINK_SO.gsub(/^/, "\t")
  mfile.print link_so, "\n\n"
  unless $static.nil?
    mfile.print "$(STATIC_LIB): $(OBJS)\n\t"
    mfile.print "$(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$(RUBY) #{makedef} #{origdef} > $@\n\n"
  end

  depend = File.join(srcdir, "depend")
  if File.exist?(depend)
    suffixes = []
    depout = []
    open(depend, "r") do |dfile|
      mfile.printf "###\n"
      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 % $2}
        end
        depout << line
      end
      while line = dfile.gets()
        line.gsub!(/\.o\b/, ".#{$OBJEXT}")
        line.gsub!(/\$\(hdrdir\)\/config.h/, $config_h) if $config_h
        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
    end
    unless suffixes.empty?
      mfile.print ".SUFFIXES: .", suffixes.uniq.join(" ."), "\n\n"
    end
    mfile.print "$(OBJS): $(RUBY_EXTCONF_H)\n\n" if $extconf_h
    mfile.print depout
  else
    headers = %w[ruby.h defines.h]
    if RULE_SUBST
      headers.each {|h| h.sub!(/.*/) {|*m| RULE_SUBST % m}}
    end
    headers << $config_h if $config_h
    headers << "$(RUBY_EXTCONF_H)" if $extconf_h
    mfile.print "$(OBJS): ", headers.join(' '), "\n"
  end

  $makefile_created = true
ensure
  mfile.close if mfile
end
            
create_tmpsrc(src) click to toggle source
 
               # File mkmf.rb, line 252
def create_tmpsrc(src)
  src = yield(src) if block_given?
  src = src.gsub(/[ \t]+$/, '').gsub(/\A\n+|^\n+$/, '').sub(/[^\n]\z/, "\\&\n")
  open(CONFTEST_C, "wb") do |cfile|
    cfile.print src
  end
  src
end
            
dir_config(target, idefault=nil, ldefault=nil) click to toggle source

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.

 
               # File mkmf.rb, line 959
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 : idir.split(File::PATH_SEPARATOR) : []
  if defaults
    idirs.concat(defaults.collect {|dir| dir + "/include"})
    idir = ([idir] + idirs).compact.join(File::PATH_SEPARATOR)
  end
  unless idirs.empty?
    idirs.collect! {|dir| "-I" + dir}
    idirs -= Shellwords.shellwords($CPPFLAGS)
    unless idirs.empty?
      $CPPFLAGS = (idirs.quote << $CPPFLAGS).join(" ")
    end
  end

  ldirs = ldir ? Array === ldir ? ldir : ldir.split(File::PATH_SEPARATOR) : []
  if defaults
    ldirs.concat(defaults.collect {|dir| dir + "/lib"})
    ldir = ([ldir] + ldirs).compact.join(File::PATH_SEPARATOR)
  end
  $LIBPATH = ldirs | $LIBPATH

  [idir, ldir]
end
            
dir_re(dir) click to toggle source
 
               # File mkmf.rb, line 70
def dir_re(dir)
  Regexp.new('\$(?:\('+dir+'\)|\{'+dir+'\})(?:\$(?:\(target_prefix\)|\{target_prefix\}))?')
end
            
dummy_makefile(srcdir) click to toggle source
 
               # File mkmf.rb, line 1150
def dummy_makefile(srcdir)
  configuration(srcdir) << "CLEANFILES = #{$cleanfiles.join(' ')}
DISTCLEANFILES = #{$distcleanfiles.join(' ')}

all install static install-so install-rb: Makefile

" << CLEANINGS
end
            
egrep_cpp(pat, src, opt = "", &b) click to toggle source
 
               # File mkmf.rb, line 445
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
            
enable_config(config, *defaults) click to toggle source
 
               # File mkmf.rb, line 914
def enable_config(config, *defaults)
  if arg_config("--enable-"+config)
    true
  elsif arg_config("--disable-"+config)
    false
  elsif block_given?
    yield(config, *defaults)
  else
    return *defaults
  end
end
            
find_executable(bin, path = nil) click to toggle source
 
               # File mkmf.rb, line 881
def find_executable(bin, path = nil)
  checking_for checking_message(bin, path) do
    find_executable0(bin, path)
  end
end
            
find_executable0(bin, path = nil) click to toggle source
 
               # File mkmf.rb, line 861
def find_executable0(bin, path = nil)
  ext = config_string('EXEEXT')
  if File.expand_path(bin) == bin
    return bin if File.executable?(bin)
    ext and File.executable?(file = bin + ext) and return file
    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 File.executable?(file = File.join(dir, bin))
    return file if ext and File.executable?(file << ext)
  end
  nil
end
            
find_header(header, *paths) click to toggle source

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).

 
               # File mkmf.rb, line 704
def find_header(header, *paths)
  header = cpp_include(header)
  checking_for header do
    if try_cpp(header)
      true
    else
      found = false
      paths.each do |dir|
        opt = "-I#{dir}".quote
        if try_cpp(header, opt)
          $INCFLAGS << " " << opt
          found = true
          break
        end
      end
      found
    end
  end
end
            
find_library(lib, func, *paths, &b) click to toggle source

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.

 
               # File mkmf.rb, line 620
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
            
have_func(func, headers = nil, &b) click to toggle source

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.

 
               # File mkmf.rb, line 650
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.upcase))
      true
    else
      false
    end
  end
end
            
have_header(header, &b) click to toggle source

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.

 
               # File mkmf.rb, line 687
def have_header(header, &b)
  checking_for header do
    if try_cpp(cpp_include(header), &b)
      $defs.push(format("-DHAVE_%s", header.tr("a-z./\055", "A-Z___")))
      true
    else
      false
    end
  end
end
            
have_library(lib, func = nil, headers = nil, &b) click to toggle source

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.

Real name of the library to be linked can be altered by ‘–with-FOOlib’ configuration option.

 
               # File mkmf.rb, line 595
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
            
have_macro(macro, headers = nil, opt = "", &b) click to toggle source

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.

 
               # File mkmf.rb, line 578
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
            
have_struct_member(type, member, headers = nil, &b) click to toggle source

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 member name, in uppercase, prepended with ‘HAVE_ST_’.

For example, if #have_struct_member(‘foo’, ‘bar’) returned true, then the HAVE_ST_BAR preprocessor macro would be passed to the compiler.

 
               # File mkmf.rb, line 735
def have_struct_member(type, member, headers = nil, &b)
  checking_for checking_message("#{type}.#{member}", headers) do
    if try_compile("#{COMMON_HEADERS}
#{cpp_include(headers)}
/*top*/
int main() { return 0; }
int s = (char *)&((#{type}*)0)->#{member} - (char *)0;
", &b)
      $defs.push(format("-DHAVE_ST_%s", member.upcase))
      true
    else
      false
    end
  end
end
            
have_type(type, headers = nil, opt = "", &b) click to toggle source

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.

 
               # File mkmf.rb, line 765
def have_type(type, headers = nil, opt = "", &b)
  checking_for checking_message(type, headers, opt) do
    headers = cpp_include(headers)
    if try_compile("#{COMMON_HEADERS}
#{headers}
/*top*/
typedef #{type} conftest_type;
static conftest_type conftestval[sizeof(conftest_type)?1:-1];
", opt, &b)
      $defs.push(format("-DHAVE_TYPE_%s", type.strip.upcase.tr_s("^A-Z0-9_", "_")))
      true
    else
      false
    end
  end
end
            
have_var(var, headers = nil, &b) click to toggle source

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.

 
               # File mkmf.rb, line 669
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.upcase))
      true
    else
      false
    end
  end
end
            
init_mkmf(config = CONFIG) click to toggle source
 
               # File mkmf.rb, line 1446
def init_mkmf(config = CONFIG)
  $makefile_created = false
  $arg_config = []
  $enable_shared = config['ENABLE_SHARED'] == 'yes'
  $defs = []
  $extconf_h = nil
  $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
  $INCFLAGS = "-I$(topdir) -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)"] : CROSS_COMPILING ? [] : ["$(libdir)"]
  $DEFLIBPATH.unshift(".")
  $LIBPATH = []
  $INSTALLFILES = nil

  $objs = nil
  $srcs = nil
  $libs = ""
  if $enable_shared or Config.expand(config["LIBRUBY"].dup) != Config.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)} || []

  $extout ||= nil
  $extout_prefix ||= nil

  $arg_config.clear
  dir_config("opt")
end
            
install_dirs(target_prefix = nil) click to toggle source
 
               # File mkmf.rb, line 83
def install_dirs(target_prefix = nil)
  if $extout
    dirs = [
      ['RUBYCOMMONDIR', '$(extout)/common'],
      ['RUBYLIBDIR',    '$(RUBYCOMMONDIR)$(target_prefix)'],
      ['RUBYARCHDIR',   '$(extout)/$(arch)$(target_prefix)'],
      ['extout',        "#$extout"],
      ['extout_prefix', "#$extout_prefix"],
    ]
  elsif $extmk
    dirs = [
      ['RUBYCOMMONDIR', '$(rubylibdir)'],
      ['RUBYLIBDIR',    '$(rubylibdir)$(target_prefix)'],
      ['RUBYARCHDIR',   '$(archdir)$(target_prefix)'],
    ]
  else
    dirs = [
      ['RUBYCOMMONDIR', '$(sitedir)$(target_prefix)'],
      ['RUBYLIBDIR',    '$(sitelibdir)$(target_prefix)'],
      ['RUBYARCHDIR',   '$(sitearchdir)$(target_prefix)'],
    ]
  end
  dirs << ['target_prefix', (target_prefix ? "/#{target_prefix}" : "")]
  dirs
end
            
install_files(mfile, ifiles, map = nil, srcprefix = nil) click to toggle source
 
               # File mkmf.rb, line 492
def install_files(mfile, ifiles, map = nil, srcprefix = nil)
  ifiles or return
  srcprefix ||= '$(srcdir)'
  Config::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 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 |f|
      f[0..len] = "" if len
      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
            
install_rb(mfile, dest, srcdir = nil) click to toggle source
 
               # File mkmf.rb, line 529
def install_rb(mfile, dest, srcdir = nil)
  install_files(mfile, [["lib/**/*.rb", dest, "lib"]], nil, srcdir)
end
            
libpathflag(libpath=$DEFLIBPATH|$LIBPATH) click to toggle source
 
               # File mkmf.rb, line 294
def libpathflag(libpath=$DEFLIBPATH|$LIBPATH)
  libpath.map{|x|
    case x
    when "$(topdir)", /\A\./
      LIBPATHFLAG
    else
      LIBPATHFLAG+RPATHFLAG
    end % x.quote
  }.join
end
            
log_src(src) click to toggle source
 
               # File mkmf.rb, line 238
def log_src(src)
  src = src.split(/^/)
  fmt = "%#{src.size.to_s.size}d: %s"
  Logging::message <<"EOM"
checked program was:
/* begin */
EOM
  src.each_with_index {|line, no| Logging::message fmt, no+1, line}
  Logging::message <<"EOM"
/* end */

EOM
end
            
macro_defined?(macro, src, opt = "", &b) click to toggle source
 
               # File mkmf.rb, line 471
def macro_defined?(macro, src, opt = "", &b)
  src = src.sub(/[^\n]\z/, "\\&\n")
  try_compile(src + "/*top*/
#ifndef #{macro}
# error
>>>>>> #{macro} undefined <<<<<<
#endif
", opt, &b)
end
            
map_dir(dir, map = nil) click to toggle source
 
               # File mkmf.rb, line 109
def map_dir(dir, map = nil)
  map ||= INSTALL_DIRS
  map.inject(dir) {|dir, (orig, new)| dir.gsub(orig, new)}
end
            
merge_libs(*libs) click to toggle source
 
               # File mkmf.rb, line 152
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
            
message(*s) click to toggle source
 
               # File mkmf.rb, line 537
def message(*s)
  unless $extmk and not $VERBOSE
    printf(*s)
    $stdout.flush
  end
end
            
mkintpath(path) click to toggle source
 
               # File mkmf.rb, line 1041
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
            
mkmf_failed(path) click to toggle source
 
               # File mkmf.rb, line 1497
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
            
modified?(target, times) click to toggle source
 
               # File mkmf.rb, line 146
def modified?(target, times)
  (t = File.mtime(target)) rescue return nil
  Array === times or times = [times]
  t if times.all? {|n| n <= t}
end
            
pkg_config(pkg) click to toggle source
 
               # File mkmf.rb, line 993
def pkg_config(pkg)
  if pkgconfig = with_config("#{pkg}-config") and find_executable0(pkgconfig)
    # iff package specific config command is given
    get = proc {|opt| %x#{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| %x#{$PKGCONFIG} --#{opt} #{pkg}`.chomp}
  elsif find_executable0(pkgconfig = "#{pkg}-config")
    # default to package specific config command, as a last resort.
    get = proc {|opt| %x#{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
            
rm_f(*files) click to toggle source
 
               # File mkmf.rb, line 142
def rm_f(*files)
  FileUtils.rm_f(Dir[files.join("\0")])
end
            
scalar_ptr_type?(type, member = nil, headers = nil, &b) click to toggle source
 
               # File mkmf.rb, line 807
def scalar_ptr_type?(type, member = nil, headers = nil, &b)
  try_compile("#{COMMON_HEADERS}
#{cpp_include(headers)}
/*top*/
volatile #{type} conftestval;
int main() { return 0; }
int t() {return (int)(1-*(conftestval#{member ? ".#{member}" : ""}));}
", &b)   # pointer
end
            
scalar_type?(type, member = nil, headers = nil, &b) click to toggle source
 
               # File mkmf.rb, line 818
def scalar_type?(type, member = nil, headers = nil, &b)
  try_compile("#{COMMON_HEADERS}
#{cpp_include(headers)}
/*top*/
volatile #{type} conftestval;
int main() { return 0; }
int t() {return (int)(1-(conftestval#{member ? ".#{member}" : ""}));}
", &b)   # pointer
end
            
try_compile(src, opt="", &b) click to toggle source
 
               # File mkmf.rb, line 315
def try_compile(src, opt="", &b)
  try_do(src, cc_command(opt), &b)
ensure
  rm_f "conftest*"
end
            
try_constant(const, headers = nil, opt = "", &b) click to toggle source
 
               # File mkmf.rb, line 370
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 = %Q{#{COMMON_HEADERS}
#{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
            
try_cpp(src, opt="", &b) click to toggle source
 
               # File mkmf.rb, line 321
def try_cpp(src, opt="", &b)
  try_do(src, cpp_command(CPPOUTFILE, opt), &b)
ensure
  rm_f "conftest*"
end
            
try_do(src, command, &b) click to toggle source
 
               # File mkmf.rb, line 261
def try_do(src, command, &b)
  src = create_tmpsrc(src, &b)
  xsystem(command)
ensure
  log_src(src)
end
            
try_func(func, libs, headers = nil, &b) click to toggle source
 
               # File mkmf.rb, line 418
def try_func(func, libs, headers = nil, &b)
  headers = cpp_include(headers)
  try_link("#{COMMON_HEADERS}
#{headers}
/*top*/
int main() { return 0; }
int t() { void ((*volatile p)()); p = (void ((*)()))#{func}; return 0; }
", libs, &b) or try_link("#{headers}
/*top*/
int main() { return 0; }
int t() { #{func}(); return 0; }
", libs, &b)
end
            
try_link0(src, opt="", &b) click to toggle source
 
               # File mkmf.rb, line 305
def try_link0(src, opt="", &b)
  try_do(src, link_command("", opt), &b)
end
            
try_run(src, opt = "", &b) click to toggle source
 
               # File mkmf.rb, line 482
def try_run(src, opt = "", &b)
  if try_link0(src, opt, &b)
    xsystem("./conftest")
  else
    nil
  end
ensure
  rm_f "conftest*"
end
            
try_static_assert(expr, headers = nil, opt = "", &b) click to toggle source
 
               # File mkmf.rb, line 360
def try_static_assert(expr, headers = nil, opt = "", &b)
  headers = cpp_include(headers)
  try_compile("#{COMMON_HEADERS}
#{headers}
/*top*/
int conftest_const[(#{expr}) ? 1 : -1];
", opt, &b)
end
            
try_var(var, headers = nil, &b) click to toggle source
 
               # File mkmf.rb, line 434
def try_var(var, headers = nil, &b)
  headers = cpp_include(headers)
  try_compile("#{COMMON_HEADERS}
#{headers}
/*top*/
int main() { return 0; }
int t() { const volatile void *volatile p; p = &(&#{var})[0]; return 0; }
", &b)
end
            
what_type?(type, member = nil, headers = nil, &b) click to toggle source
 
               # File mkmf.rb, line 829
def what_type?(type, member = nil, headers = nil, &b)
  m = "#{type}"
  name = type
  if member
    m << "." << member
    name = "(((#{type} *)0)->#{member})"
  end
  fmt = "seems %s"
  def fmt.%(x)
    x ? super : "unknown"
  end
  checking_for checking_message(m, headers), fmt do
    if scalar_ptr_type?(type, member, headers, &b)
      if try_static_assert("sizeof(*#{name}) == 1", headers)
        "string"
      end
    elsif scalar_type?(type, member, headers, &b)
      if try_static_assert("sizeof(#{name}) > sizeof(long)", headers)
        "long long"
      elsif try_static_assert("sizeof(#{name}) > sizeof(int)", headers)
        "long"
      elsif try_static_assert("sizeof(#{name}) > sizeof(short)", headers)
        "int"
      elsif try_static_assert("sizeof(#{name}) > 1", headers)
        "short"
      else
        "char"
      end
    end
  end
end
            
winsep(s) click to toggle source
 
               # File mkmf.rb, line 1030
def winsep(s)
  s.tr('/', '\')
end
            
with_cflags(flags) click to toggle source
 
               # File mkmf.rb, line 344
def with_cflags(flags)
  cflags = $CFLAGS
  $CFLAGS = flags
  ret = yield
ensure
  $CFLAGS = cflags unless ret
end
            
with_config(config, *defaults) click to toggle source
 
               # File mkmf.rb, line 893
def with_config(config, *defaults)
  config = config.sub(/^--with[-_]/, '')
  val = arg_config("--with-"+config) do
    if arg_config("--without-"+config)
      false
    elsif block_given?
      yield(config, *defaults)
    else
      break *defaults
    end
  end
  case val
  when "yes"
    true
  when "no"
    false
  else
    val
  end
end
            
with_cppflags(flags) click to toggle source
 
               # File mkmf.rb, line 336
def with_cppflags(flags)
  cppflags = $CPPFLAGS
  $CPPFLAGS = flags
  ret = yield
ensure
  $CPPFLAGS = cppflags unless ret
end
            
with_destdir(dir) click to toggle source
 
               # File mkmf.rb, line 1025
def with_destdir(dir)
  dir = dir.sub($dest_prefix_pattern, '')
  /\A\$[\(\{]/ =~ dir ? dir : "$(DESTDIR)"+dir
end
            
with_ldflags(flags) click to toggle source
 
               # File mkmf.rb, line 352
def with_ldflags(flags)
  ldflags = $LDFLAGS
  $LDFLAGS = flags
  ret = yield
ensure
  $LDFLAGS = ldflags unless ret
end
            
xpopen(command, *mode, &block) click to toggle source
 
               # File mkmf.rb, line 226
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
            
xsystem(command) click to toggle source
 
               # File mkmf.rb, line 219
def xsystem command
  Logging::open do
    puts command.quote
    system(command)
  end
end
            

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