# configmake.m4 serial 2

dnl Copyright (C) 2010-2017 Free Software Foundation, Inc.

dnl This file is free software; the Free Software Foundation

dnl gives unlimited permission to copy and/or distribute it,

dnl with or without modifications, as long as this notice is preserved.

# gl_CONFIGMAKE_PREP

# ------------------

# Guarantee all of the standard directory variables, even when used with

# autoconf 2.59 (datarootdir wasn't supported until 2.59c, and runstatedir

# in 2.70) or automake 1.9.6 (pkglibexecdir wasn't supported until 1.10b,

# and runstatedir in 1.14.1).

AC_DEFUN([gl_CONFIGMAKE_PREP],

[

  dnl Technically, datadir should default to datarootdir.  But if

  dnl autoconf is too old to provide datarootdir, then reversing the

  dnl definition is a reasonable compromise.  Only AC_SUBST a variable

  dnl if it was not already defined earlier by autoconf.

  if test "x$datarootdir" = x; then

    AC_SUBST([datarootdir], ['${datadir}'])

  fi

  dnl Copy the approach used in autoconf 2.60.

  if test "x$docdir" = x; then

    AC_SUBST([docdir], [m4_ifset([AC_PACKAGE_TARNAME],

      ['${datarootdir}/doc/${PACKAGE_TARNAME}'],

      ['${datarootdir}/doc/${PACKAGE}'])])

  fi

  dnl The remaining variables missing from autoconf 2.59 are easier.

  if test "x$htmldir" = x; then

    AC_SUBST([htmldir], ['${docdir}'])

  fi

  if test "x$dvidir" = x; then

    AC_SUBST([dvidir], ['${docdir}'])

  fi

  if test "x$pdfdir" = x; then

    AC_SUBST([pdfdir], ['${docdir}'])

  fi

  if test "x$psdir" = x; then

    AC_SUBST([psdir], ['${docdir}'])

  fi

  if test "x$lispdir" = x; then

    AC_SUBST([lispdir], ['${datarootdir}/emacs/site-lisp'])

  fi

  if test "x$localedir" = x; then

    AC_SUBST([localedir], ['${datarootdir}/locale'])

  fi

  dnl Added in autoconf 2.70

  if test "x$runstatedir" = x; then

    AC_SUBST([runstatedir], ['${localstatedir}/run'])

  fi

  dnl Automake 1.9.6 only lacks pkglibexecdir; and since 1.11 merely

  dnl provides it without AC_SUBST, this blind use of AC_SUBST is safe.

  AC_SUBST([pkglibexecdir], ['${libexecdir}/${PACKAGE}'])

])