dnl -*- mode: autoconf -*-
dnl Copyright 2009 Johan Dahlin
dnl
dnl This file is free software; the author(s) gives unlimited
dnl permission to copy and/or distribute it, with or without
dnl modifications, as long as this notice is preserved.
dnl

# serial 1

m4_define([_GOBJECT_INTROSPECTION_CHECK_INTERNAL],
[
    AC_BEFORE([AC_PROG_LIBTOOL],[$0])dnl setup libtool first
    AC_BEFORE([AM_PROG_LIBTOOL],[$0])dnl setup libtool first
    AC_BEFORE([LT_INIT],[$0])dnl setup libtool first

    dnl enable/disable introspection
    m4_if([$2], [require],
    [dnl
        enable_introspection=yes
    ],[dnl
        AC_ARG_ENABLE(introspection,
                  AS_HELP_STRING([--enable-introspection[=@<:@no/auto/yes@:>@]],
                                 [Enable introspection for this build]),,
                                 [enable_introspection=auto])
    ])dnl

    AC_MSG_CHECKING([for gobject-introspection])

    dnl presence/version checking
    AS_CASE([$enable_introspection],
    [no], [dnl
        found_introspection="no (disabled, use --enable-introspection to enable)"
    ],dnl
    [yes],[dnl
        PKG_CHECK_EXISTS([gobject-introspection-1.0],,
                         AC_MSG_ERROR([gobject-introspection-1.0 is not installed]))
        PKG_CHECK_EXISTS([gobject-introspection-1.0 >= $1],
                         found_introspection=yes,
                         AC_MSG_ERROR([You need to have gobject-introspection >= $1 installed to build AC_PACKAGE_NAME]))
    ],dnl
    [auto],[dnl
        PKG_CHECK_EXISTS([gobject-introspection-1.0 >= $1], found_introspection=yes, found_introspection=no)
    ],dnl
    [dnl
        AC_MSG_ERROR([invalid argument passed to --enable-introspection, should be one of @<:@no/auto/yes@:>@])
    ])dnl

    AC_MSG_RESULT([$found_introspection])

    INTROSPECTION_SCANNER=
    INTROSPECTION_COMPILER=
    INTROSPECTION_GENERATE=
    INTROSPECTION_GIRDIR=
    INTROSPECTION_TYPELIBDIR=
    if test "x$found_introspection" = "xyes"; then
       INTROSPECTION_SCANNER=`$PKG_CONFIG --variable=g_ir_scanner gobject-introspection-1.0`
       INTROSPECTION_COMPILER=`$PKG_CONFIG --variable=g_ir_compiler gobject-introspection-1.0`
       INTROSPECTION_GENERATE=`$PKG_CONFIG --variable=g_ir_generate gobject-introspection-1.0`
       INTROSPECTION_GIRDIR=`$PKG_CONFIG --variable=girdir gobject-introspection-1.0`
       INTROSPECTION_TYPELIBDIR="$($PKG_CONFIG --variable=typelibdir gobject-introspection-1.0)"
    fi
    AC_SUBST(INTROSPECTION_SCANNER)
    AC_SUBST(INTROSPECTION_COMPILER)
    AC_SUBST(INTROSPECTION_GENERATE)
    AC_SUBST(INTROSPECTION_GIRDIR)
    AC_SUBST(INTROSPECTION_TYPELIBDIR)

    AM_CONDITIONAL(HAVE_INTROSPECTION, test "x$found_introspection" = "xyes")
])


dnl Usage:
dnl   GOBJECT_INTROSPECTION_CHECK([minimum-g-i-version])

AC_DEFUN([GOBJECT_INTROSPECTION_CHECK],
[
  _GOBJECT_INTROSPECTION_CHECK_INTERNAL([$1])
])

dnl Usage:
dnl   GOBJECT_INTROSPECTION_REQUIRE([minimum-g-i-version])


AC_DEFUN([GOBJECT_INTROSPECTION_REQUIRE],
[
  _GOBJECT_INTROSPECTION_CHECK_INTERNAL([$1], [require])
])


dnl as-ac-expand.m4 0.2.0                                   -*- autoconf -*-
dnl autostars m4 macro for expanding directories using configure's prefix

dnl (C) 2003, 2004, 2005 Thomas Vander Stichele <thomas at apestaart dot org>

dnl Copying and distribution of this file, with or without modification,
dnl are permitted in any medium without royalty provided the copyright
dnl notice and this notice are preserved.

dnl AS_AC_EXPAND(VAR, CONFIGURE_VAR)

dnl example:
dnl AS_AC_EXPAND(SYSCONFDIR, $sysconfdir)
dnl will set SYSCONFDIR to /usr/local/etc if prefix=/usr/local

AC_DEFUN([AS_AC_EXPAND],
[
  EXP_VAR=[$1]
  FROM_VAR=[$2]

  dnl first expand prefix and exec_prefix if necessary
  prefix_save=$prefix
  exec_prefix_save=$exec_prefix

  dnl if no prefix given, then use /usr/local, the default prefix
  if test "x$prefix" = "xNONE"; then
    prefix="$ac_default_prefix"
  fi
  dnl if no exec_prefix given, then use prefix
  if test "x$exec_prefix" = "xNONE"; then
    exec_prefix=$prefix
  fi

  full_var="$FROM_VAR"
  dnl loop until it doesn't change anymore
  while true; do
    new_full_var="`eval echo $full_var`"
    if test "x$new_full_var" = "x$full_var"; then break; fi
    full_var=$new_full_var
  done

  dnl clean up
  full_var=$new_full_var
  AC_SUBST([$1], "$full_var")

  dnl restore prefix and exec_prefix
  prefix=$prefix_save
  exec_prefix=$exec_prefix_save
])