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dnl -*- mode: autoconf -*-

# serial 2

dnl Usage:
dnl   GTK_DOC_CHECK([minimum-gtk-doc-version])
AC_DEFUN([GTK_DOC_CHECK],
[
  AC_REQUIRE([PKG_PROG_PKG_CONFIG])
  AC_BEFORE([AC_PROG_LIBTOOL],[$0])dnl setup libtool first
  AC_BEFORE([AM_PROG_LIBTOOL],[$0])dnl setup libtool first

  ifelse([$1],[],[gtk_doc_requires="gtk-doc"],[gtk_doc_requires="gtk-doc >= $1"])
  AC_MSG_CHECKING([for gtk-doc])
  PKG_CHECK_EXISTS([$gtk_doc_requires],[have_gtk_doc=yes],[have_gtk_doc=no])
  AC_MSG_RESULT($have_gtk_doc)

  if test "$have_gtk_doc" = "no"; then
      AC_MSG_WARN([
  You will not be able to create source packages with 'make dist'
  because $gtk_doc_requires is not found.])
  fi

  dnl check for tools we added during development
  dnl Use AC_CHECK_PROG to avoid the check target using an absolute path that
  dnl may not be writable by the user. Currently, automake requires that the
  dnl test name must end in '.test'.
  dnl https://bugzilla.gnome.org/show_bug.cgi?id=701638
  AC_CHECK_PROG([GTKDOC_CHECK],[gtkdoc-check],[gtkdoc-check.test])
  AC_PATH_PROG([GTKDOC_CHECK_PATH],[gtkdoc-check])
  AC_PATH_PROGS([GTKDOC_REBASE],[gtkdoc-rebase],[true])
  AC_PATH_PROG([GTKDOC_MKPDF],[gtkdoc-mkpdf])

  dnl for overriding the documentation installation directory
  AC_ARG_WITH([html-dir],
    AS_HELP_STRING([--with-html-dir=PATH], [path to installed docs]),,
    [with_html_dir='${datadir}/gtk-doc/html'])
  HTML_DIR="$with_html_dir"
  AC_SUBST([HTML_DIR])

  dnl enable/disable documentation building
  AC_ARG_ENABLE([gtk-doc],
    AS_HELP_STRING([--enable-gtk-doc],
                   [use gtk-doc to build documentation [[default=no]]]),,
    [enable_gtk_doc=no])

  AC_MSG_CHECKING([whether to build gtk-doc documentation])
  AC_MSG_RESULT($enable_gtk_doc)

  if test "x$enable_gtk_doc" = "xyes" && test "$have_gtk_doc" = "no"; then
    AC_MSG_ERROR([
  You must have $gtk_doc_requires installed to build documentation for
  $PACKAGE_NAME. Please install gtk-doc or disable building the
  documentation by adding '--disable-gtk-doc' to '[$]0'.])
  fi

  dnl don't check for glib if we build glib
  if test "x$PACKAGE_NAME" != "xglib"; then
    dnl don't fail if someone does not have glib
    PKG_CHECK_MODULES(GTKDOC_DEPS, glib-2.0 >= 2.10.0 gobject-2.0  >= 2.10.0,,[:])
  fi

  dnl enable/disable output formats
  AC_ARG_ENABLE([gtk-doc-html],
    AS_HELP_STRING([--enable-gtk-doc-html],
                   [build documentation in html format [[default=yes]]]),,
    [enable_gtk_doc_html=yes])
    AC_ARG_ENABLE([gtk-doc-pdf],
      AS_HELP_STRING([--enable-gtk-doc-pdf],
                     [build documentation in pdf format [[default=no]]]),,
      [enable_gtk_doc_pdf=no])

  if test -z "$GTKDOC_MKPDF"; then
    enable_gtk_doc_pdf=no
  fi

  if test -z "$AM_DEFAULT_VERBOSITY"; then
    AM_DEFAULT_VERBOSITY=1
  fi
  AC_SUBST([AM_DEFAULT_VERBOSITY])

  AM_CONDITIONAL([HAVE_GTK_DOC], [test x$have_gtk_doc = xyes])
  AM_CONDITIONAL([ENABLE_GTK_DOC], [test x$enable_gtk_doc = xyes])
  AM_CONDITIONAL([GTK_DOC_BUILD_HTML], [test x$enable_gtk_doc_html = xyes])
  AM_CONDITIONAL([GTK_DOC_BUILD_PDF], [test x$enable_gtk_doc_pdf = xyes])
  AM_CONDITIONAL([GTK_DOC_USE_LIBTOOL], [test -n "$LIBTOOL"])
  AM_CONDITIONAL([GTK_DOC_USE_REBASE], [test -n "$GTKDOC_REBASE"])
])