#!/usr/bin/env ruby

# Generated automatically using autoconf.rb version 0.2.4

require "mkmf"

$ac_help = ""
$ac_help += "  --with-apache=DIR       Build static Apache module.  DIR is the path
                          to the top-level Apache source directory" "\n"
$ac_help += "  --with-apxs[=FILE]      Build shared Apache module.  FILE is the optional
                          pathname to the Apache apxs tool; [apxs]" "\n"
$ac_help += "  --with-apr-includes=DIR     APR include files are in DIR" "\n"

$ac_sed = {}
$ac_confdefs = {}
$ac_features = {}
$ac_packages = {}
  
def AC_SUBST(variable)
  $ac_sed[variable] = true
end

def AC_DEFINE(variable, value = 1)
  case value
  when true
    value = "1"
  when false
    value = "0"
  when String
    value = value.dump
  else
    value = value.inspect
  end
  $ac_confdefs[variable] = value
end

AC_GIVEN = Object.new
def AC_GIVEN.if_not_given
  # do nothing
end

AC_NOT_GIVEN = Object.new
def AC_NOT_GIVEN.if_not_given
  yield
end

def AC_ENABLE(feature, action = Proc.new)
  if $ac_features[feature]
    yield($ac_features[feature])
    return AC_GIVEN
  else
    return AC_NOT_GIVEN
  end
end

def AC_WITH(package, action = Proc.new)
  if $ac_packages[package]
    yield($ac_packages[package])
    return AC_GIVEN
  else
    return AC_NOT_GIVEN
  end
end

require 'ftools'

def AC_OUTPUT(*files)
  $DEFS ||= ""
  if $AC_LIST_HEADER
    $DEFS << " -DHAVE_CONFIG_H"
    AC_OUTPUT_HEADER($AC_LIST_HEADER)
  else
    $DEFS << " " + $ac_confdefs.collect {|k, v| "-D#{k}=#{v}" }.join(" ")
  end
  for file in files
    print "creating ", file, "\n"
    open(File.join($srcdir, file + ".in")) do |fin|
      File.makedirs(File.dirname(file))
      open(file, "w") do |fout|
	depend = false
	while line = fin.gets
          depend = true if /^\#\#\# depend/ =~ line
	  line.gsub!(/@([A-Za-z_]+)@/) do |s|
	    name = $1
	    if $ac_sed.key?(name)
	      eval("$" + name) #"
	    else
	      s
	    end
	  end
          line.gsub!(/(\s)([^\s\/]+\.[ch])/, '\1{$(srcdir)}\2') if depend && $nmake
	  fout.print(line)
	end
      end
    end
  end
end

def AC_OUTPUT_HEADER(header)
  print "creating ", header, "\n"
  open(File.join($srcdir, header + ".in")) do |fin|
    open(header, "w") do |fout|
      while line = fin.gets
	line.sub!(/^(#define|#undef)\s+([A-Za-z_]+).*$/) do |s|
	  name = $2
	  if $ac_confdefs.key?(name)
	    val = $ac_confdefs[name]
	    "#define #{name} #{val}"
	  else
	    s
	  end
	end
	fout.print(line)
      end
    end
  end
  $ac_confdefs.clear
end

def AC_CONFIG_HEADER(header)
  $AC_LIST_HEADER = header
end

def AC_CHECK(feature)
  AC_MSG_CHECKING(feature)
  AC_MSG_RESULT(yield)
end

def AC_MSG_CHECKING(feature)
  print "checking #{feature}... "
  $stdout.flush
end

def AC_MSG_RESULT(result)
  case result
  when true
    result = "yes"
  when false, nil
    result = "no"
  end
  puts(result)
end

def AC_MSG_WARN(msg)
  $stderr.print("configure.rb: warning: ", msg, "\n")
end

def AC_MSG_ERROR(msg)
  $stderr.print("configure.rb: error: ", msg, "\n")
  exit(1)
end

def AC_CONFIG_AUX_DIR_DEFAULT
  AC_CONFIG_AUX_DIRS($srcdir, "#{$srcdir}/..",  "#{$srcdir}/../..")
end

def AC_CONFIG_AUX_DIRS(*dirs)
  for dir in dirs
    for prog in [ "install-rb", "install.rb" ]
      file = File.join(dir, prog)
      if File.file?(file); then
	$ac_aux_dir = dir
	$ac_install_rb = "$(RUBY) #{file} -c"
	return
      end
    end
  end
end

def AC_PROG_INSTALL
  AC_MSG_CHECKING("for a BSD compatible install")
  $ac_cv_path_install = callcc { |c|
    for dir in ENV["PATH"].split(/:/)
      if %r'^(/|\./|/etc/.*|/usr/sbin/.*|/usr/etc/.*|/sbin/.*|/usr/afsws/bin/.*|/usr/ucb/.*)$' =~ dir + "/" # '
	next
      end
      for prog in [ "ginstall", "scoinst", "install" ]
	file = File.join(dir, prog)
	if File.file?(file)
	  if prog == "install" &&
	      `#{file} 2>&1` =~ /dspmsg/
	    # AIX install.  It has an incompatible calling convention.
	  else
	    c.call("#{file} -c")
	  end
	end
      end
    end
    unless $ac_install_rb
      AC_CONFIG_AUX_DIR_DEFAULT()
    end
    $ac_install_rb
  }
  $INSTALL = $ac_cv_path_install
  AC_MSG_RESULT($INSTALL)
  $INSTALL_PROGRAM ||= "$(INSTALL)"
  $INSTALL_SCRIPT ||= "$(INSTALL)"
  $INSTALL_DATA ||= "$(INSTALL) -m 644"
  $INSTALL_DLLIB ||= "$(INSTALL) -m 555"
  $INSTALL_DIR ||= "$(INSTALL) -d"
  AC_SUBST("INSTALL")
  AC_SUBST("INSTALL_PROGRAM")
  AC_SUBST("INSTALL_SCRIPT")
  AC_SUBST("INSTALL_DATA")
  AC_SUBST("INSTALL_DLLIB")
  AC_SUBST("INSTALL_DIR")
end

$stdout.sync = true

drive = File::PATH_SEPARATOR == ';' ? /\A\w:/ : /\A/
prefix = Regexp.new("\\A" + Regexp.quote(CONFIG["prefix"]))
$drive = CONFIG["prefix"] =~ drive ? $& : ''
$prefix = CONFIG["prefix"].sub(drive, '')
$exec_prefix = "$(prefix)"
$bindir = CONFIG["bindir"].sub(prefix, "$(exec_prefix)").sub(drive, '')
$datadir = CONFIG["datadir"].sub(prefix, "$(prefix)").sub(drive, '')
$libdir = CONFIG["libdir"].sub(prefix, "$(exec_prefix)").sub(drive, '')
$archdir = $archdir.sub(prefix, "$(prefix)").sub(drive, '')
$sitelibdir = $sitelibdir.sub(prefix, "$(prefix)").sub(drive, '')
$sitearchdir = $sitearchdir.sub(prefix, "$(prefix)").sub(drive, '')
$includedir = CONFIG["includedir"].sub(prefix, "$(prefix)").sub(drive, '')
$mandir = CONFIG["mandir"].sub(prefix, "$(prefix)").sub(drive, '')

$rubylibdir ||=
  $libdir + "/ruby/" + CONFIG["MAJOR"] + "." + CONFIG["MINOR"]

for option in ARGV
  if option =~ /^-.*?=(.*)/
    optarg = $1
  else
    optarg = nil
  end
  case option
  when /^--prefix/
    $prefix = optarg
  when /^--exec-prefix/
    $exec_prefix = optarg
  when /^--bindir/
    $bindir = optarg
  when /^--datadir/
    $datadir = optarg
  when /^--libdir/
    $libdir = optarg
  when /^--includedir/
    $includedir = optarg
  when /^--mandir/
    $mandir = optarg
  when /^--enable-([^=]+)/
    feature = $1
    if optarg.nil?
      optarg = "yes"
    end
    $ac_features[feature] = optarg
  when /^--with-([^=]+)/
    package = $1
    if optarg.nil?
      optarg = "yes"
    end
    $ac_packages[package] = optarg
  when "--help"
    print <<EOF
Usage: configure.rb [options]
Options: [defaults in brackets after descriptions]
Configuration:
  --help                  print this message
Directory and file names:
  --prefix=PREFIX         install architecture-independent files in PREFIX
                          [#{$prefix}]
  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
                          [same as prefix]
  --bindir=DIR            user executables in DIR [EPREFIX/bin]
  --libdir=DIR            object code libraries in DIR [EPREFIX/lib]
  --includedir=DIR        C header files in DIR [PREFIX/include]
  --datadir=DIR           read-only architecture-independent data in DIR
                          [PREFIX/share]
  --mandir=DIR            manual pages in DIR [PREFIX/man]
EOF
    if $ac_help.length > 0
      print "--enable and --with options recognized:\n"
      print $ac_help
    end
    exit(0)
  when /^-.*/
    AC_MSG_ERROR("#{option}: invalid option; use --help to show usage")
  end
end

$srcdir = File.expand_path(File.dirname($0))
$VPATH = ""

$arch = CONFIG["arch"]
$sitearch = CONFIG["sitearch"]
$ruby_version = Config::CONFIG["ruby_version"] ||
  CONFIG["MAJOR"] + "." + CONFIG["MINOR"]

$CC = CONFIG["CC"]
$AR = CONFIG["AR"]
$LD = "$(CC)"
$RANLIB = CONFIG["RANLIB"]
$ruby = arg_config("--ruby", File.join(Config::CONFIG["bindir"], CONFIG["ruby_install_name"]))
$RUBY = ($nmake && !$configure_args.has_key?('--ruby')) ? $ruby.gsub(%r'/', '\\') : $ruby
if RUBY_VERSION < "1.8.0"
  $RM = 'rm -f'
else
  $RM = CONFIG["RM"] || '$(RUBY) -run -e rm -- -f'
end

if not defined? CFLAGS
  CFLAGS = CONFIG["CFLAGS"]
end

if CFLAGS.index(CONFIG["CCDLFLAGS"])
  $CFLAGS = CFLAGS
else
  $CFLAGS = CFLAGS + " " + CONFIG["CCDLFLAGS"]
end
$LDFLAGS = CONFIG["LDFLAGS"]
if $LDFLAGS.to_s.empty? && /mswin32/ =~ RUBY_PLATFORM
  $LDFLAGS = "-link -incremental:no -pdb:none"
end
$LIBS = CONFIG["LIBS"]
$XLDFLAGS = CONFIG["XLDFLAGS"]
$XLDFLAGS.gsub!(/-L\./, "")
if /mswin32/ !~ RUBY_PLATFORM
  $XLDFLAGS += " -L$(libdir)"
elsif RUBY_VERSION >= "1.8"
  $XLDFLAGS += " #{CONFIG['LIBPATHFLAG'] % '$(libdir)'}"
end
$DLDFLAGS = CONFIG["DLDFLAGS"]
$LDSHARED = CONFIG["LDSHARED"]

$EXEEXT = CONFIG["EXEEXT"]
$DLEXT = CONFIG["DLEXT"]

$RUBY_INSTALL_NAME = CONFIG["RUBY_INSTALL_NAME"]
$RUBY_SHARED = (CONFIG["ENABLE_SHARED"] == "yes")
$LIBRUBYARG = CONFIG["LIBRUBYARG"]
if $RUBY_SHARED
  $LIBRUBYARG.gsub!(/-L\./, "")
else
  if RUBY_VERSION < "1.8" && RUBY_PLATFORM !~ /mswin32/
    $LIBRUBYARG = "$(hdrdir)/" + $LIBRUBYARG
  end
end
$LIBRUBY = CONFIG["LIBRUBY"]
$LIBRUBY_A = CONFIG["LIBRUBY_A"]
$RUBY_SO_NAME = CONFIG["RUBY_SO_NAME"]

case RUBY_PLATFORM
when /-aix/
  if $RUBY_SHARED
    $LIBRUBYARG = "-Wl,$(libdir)/" + CONFIG["LIBRUBY_SO"]
    $LIBRUBYARG.sub!(/\.so\.[.0-9]*$/, '.so')
    $XLDFLAGS = ""
  else
    $XLDFLAGS = "-Wl,-bE:$(topdir)/ruby.imp"
  end
  if $DLDFLAGS !~ /-Wl,/
    $LIBRUBYARG.gsub!(/-Wl,/, '')
    $XLDFLAGS.gsub!(/-Wl,/, '')
    $DLDFLAGS.gsub!(/-Wl,/, '')
  end
end

$COMPILE_RULES = ''
if defined?(COMPILE_RULES)
  COMPILE_RULES.each do |rule|
    $COMPILE_RULES << sprintf(rule, 'c', $OBJEXT)
    $COMPILE_RULES << sprintf("\n\t%s\n\n", COMPILE_C)
  end
end

AC_SUBST("srcdir")
AC_SUBST("topdir")
AC_SUBST("hdrdir")
AC_SUBST("VPATH")

AC_SUBST("arch")
AC_SUBST("sitearch")
AC_SUBST("ruby_version")
AC_SUBST("drive")
AC_SUBST("prefix")
AC_SUBST("exec_prefix")
AC_SUBST("bindir")
AC_SUBST("datadir")
AC_SUBST("libdir")
AC_SUBST("rubylibdir")
AC_SUBST("archdir")
AC_SUBST("sitedir")
AC_SUBST("sitelibdir")
AC_SUBST("sitearchdir")
AC_SUBST("includedir")
AC_SUBST("mandir")

AC_SUBST("CC")
AC_SUBST("AR")
AC_SUBST("LD")
AC_SUBST("RANLIB")
AC_SUBST("RUBY")
AC_SUBST("RM")

AC_SUBST("CFLAGS")
AC_SUBST("DEFS")
AC_SUBST("LDFLAGS")
AC_SUBST("LIBS")
AC_SUBST("XLDFLAGS")
AC_SUBST("DLDFLAGS")
AC_SUBST("LDSHARED")

AC_SUBST("OBJEXT")
AC_SUBST("EXEEXT")
AC_SUBST("DLEXT")

AC_SUBST("COMPILE_RULES")

AC_SUBST("RUBY_INSTALL_NAME")
AC_SUBST("LIBRUBYARG")
AC_SUBST("LIBRUBYARG_SHARED")
AC_SUBST("LIBRUBYARG_STATIC")
AC_SUBST("LIBRUBY")
AC_SUBST("LIBRUBY_A")
AC_SUBST("RUBY_SO_NAME")

version =
  open(File.join($srcdir, "mod_ruby.h")).grep(/MOD_RUBY_STRING_VERSION/)[0]
$MAJOR, $MINOR, $TEENY = version.scan(/mod_ruby\/(\d+).(\d+).(\d+)/)[0] #/
AC_SUBST("MAJOR")
AC_SUBST("MINOR")
AC_SUBST("TEENY")

AC_PROG_INSTALL()

AC_MSG_CHECKING("whether we are using gcc")
if $CC == "gcc" || `#{$CC} -v 2>&1` =~ /gcc/
  $using_gcc = true
  $CFLAGS += " -Wall"
  $CFLAGS += " " + ENV["CFLAGS"] if ENV.include?("CFLAGS")
else
  $using_gcc = false
end
AC_MSG_RESULT($using_gcc)

AC_MSG_CHECKING("Ruby version")
AC_MSG_RESULT(RUBY_VERSION)
if RUBY_VERSION < "1.6.4"
  AC_MSG_ERROR("mod_ruby requires Ruby 1.6.4 or later.")
end

AC_MSG_CHECKING("for static Apache module support")
AC_WITH("apache") { |withval|
  if withval == "yes"
    AC_MSG_ERROR("You need to specify a directory with --with-apache")
  end
  $APACHE_SRCDIR = File.expand_path(withval)
  if File.file?("#{$APACHE_SRCDIR}/src/include/httpd.h")
    $APACHE_INCLUDES = "-I#{$APACHE_SRCDIR}/src/include -I#{$APACHE_SRCDIR}/src/os/unix"
  elsif File.file?("#{$APACHE_SRCDIR}/include/httpd.h")
    AC_MSG_ERROR("static module is not supported for Apache2. Please use --with-apxs option")
  else
    AC_MSG_ERROR("Unable to locate #{withval}/src/include/httpd.h")
  end
  $TARGET = "libruby.a"
  $INSTALL_TARGET = "install-static"
  st = File.stat($APACHE_SRCDIR)
  $APACHE_SRC_UID = st.uid
  $APACHE_SRC_GID = st.gid
  AC_MSG_RESULT("yes")
}.if_not_given {
  AC_MSG_RESULT("no")
}

AC_MSG_CHECKING("for dynamic Apache module support")
AC_WITH("apxs") { |withval|
  if $TARGET
    AC_MSG_ERROR("--with-apache and --with-apxs are mutually exclusive")
  end
  if withval == "yes"
    $APXS = "apxs"
  else
    $APXS = withval
  end
}.if_not_given {
  unless $TARGET
    $APXS = "apxs"
    catch :found do
      for cmd in [ "apxs", "apxs2" ]
        for dir in [
            "/sbin", "/bin",
            "/usr/sbin", "/usr/bin",
            "/usr/local/sbin", "/usr/local/bin"
          ]
          path = File.expand_path(cmd, dir)
          if File.executable?(path)
            $APXS = path
            throw :found
          end
        end
      end
    end
  end
}

if $APXS
  $APACHE_INCLUDES = "-I" + `#{$APXS} -q INCLUDEDIR`.chomp
  apache_cflags = ""
  for x in %w(CFLAGS NOTEST_CPPFLAGS EXTRA_CPPFLAGS EXTRA_CFLAGS)
    s = `#{$APXS} -q #{x} 2> /dev/null`.chomp
    if $? == 0
      apache_cflags += " #{s}"
    end
  end
  apache_cflags.gsub!(/-I\S+/) do |inc|
    $APACHE_INCLUDES += " " + inc
    ""
  end
  $CFLAGS += " " + apache_cflags
  $APACHE_LIBEXECDIR = `#{$APXS} -q LIBEXECDIR`.chomp
  if $? != 0
    AC_MSG_ERROR("failed to exec #{$APXS}")
  end
  if /mswin32/ =~ RUBY_PLATFORM
    $APACHE_LIBDIR = `#{$APXS} -q LIBDIR 2> nul`.chomp
  else
    $APACHE_LIBDIR = `#{$APXS} -q LIBDIR 2> /dev/null`.chomp
  end
  $APACHE_LIBS = 'libapr.lib libaprutil.lib libhttpd.lib' if /mswin32/ =~ RUBY_PLATFORM
  $TARGET = "mod_ruby.so"
  $INSTALL_TARGET = "install-shared"
  AC_MSG_RESULT("yes")
else
  AC_MSG_RESULT("no")
end

AC_WITH("apr-includes") { |withval|
  $APACHE_INCLUDES += " -I#{withval}"
}.if_not_given {
  for dir in [ "/usr/include/apr-0" ]
    if File.exist?(File.expand_path("apr.h", dir))
      $APACHE_INCLUDES += " -I#{dir}"
      break
    end
  end
}

AC_SUBST("TARGET")
AC_SUBST("INSTALL_TARGET")
AC_SUBST("APACHE_SRCDIR")
AC_SUBST("APACHE_INCLUDES")
AC_SUBST("APACHE_LIBEXECDIR")
AC_SUBST("APACHE_LIBDIR")
AC_SUBST("APACHE_LIBS")
AC_SUBST("APACHE_SRC_UID")
AC_SUBST("APACHE_SRC_GID")

AC_SUBST("LIBAPREQ_INCLUDES")
AC_SUBST("LIBAPREQ_OBJS")

case RUBY_PLATFORM
when /-aix/
  $DLDFLAGS = "-Wl,-bE:mod_ruby.imp -Wl,-bI:httpd.exp -Wl,-bM:SRE -Wl,-bnoentry -lc"
  open("mod_ruby.imp", "w") do |ifile|
    ifile.write <<EOF
#!
ruby_module
EOF
  end
  print <<EOF
To build mod_ruby on the AIX platform, you need to have the apache
export file `httpd.exp' in the current directory.
Please copy <apache-src-directory>/support/httpd.exp to the current
directory before making `mod_ruby.so'.
EOF
#'
when /cygwin/
  if $INSTALL_TARGET == "install-shared"
    $LIBS += ' ' + File.join($APACHE_LIBEXECDIR, "cyghttpd.dll")
  end
when /(ms|bcc)win32|mingw/
  $DEFS = "-DWIN32"
end

librubyarg = $LIBRUBYARG.dup
Config.expand(librubyarg)
$MODULE_LIBS = "#{librubyarg} #{$LIBS}"
AC_SUBST("MODULE_LIBS")

if defined?(LINK_SO)
  $LINK_SO = LINK_SO.gsub(/\$\(DLLIB\)/, '$(TARGET)').gsub(/\$\(DLDFLAGS\)/, '$(DLDFLAGS) $(XLDFLAGS)')
else
  $LINK_SO = '$(LDSHARED) $(DLDFLAGS) $(XLDFLAGS) -o $(TARGET) $(OBJS) $(LIBRUBYARG) $(LIBS)'
end
AC_SUBST("LINK_SO")

unless $APACHE_LIBDIR.empty?
  begin
    $libpath = libpathflag("$(APACHE_LIBDIR)") 
  rescue NameError
    $libpath = "-L$(APACHE_LIBDIR)"
  end
end
AC_SUBST("libpath")

$DEFFILE = "mod_ruby-#{$arch}.def" if /(ms|bcc)win32|mingw32/ =~ RUBY_PLATFORM
AC_SUBST("DEFFILE")

AC_OUTPUT("Makefile",
	  "libruby.module",
	  "doc/Makefile")

open("mod_ruby-#{$arch}.def", "w") do |file|
  file.print ""
end if /(ms|bcc)win32|mingw32/ =~ RUBY_PLATFORM

# Local variables:
# mode: Ruby
# tab-width: 8
# End: