Synnefo » snf-ganeti

#####

# Copyright (C) 2012 Google Inc.

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful, but

# WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

# General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

# 02110-1301, USA.

#####

#

# SYNOPSIS

#

#   AC_GHC_PKG_CHECK(modname, action_found, action_not_found, extended)

#

# DESCRIPTION

#

#   Checks for a Haskell (GHC) module. If found, execute the second

#   argument, if not found, the third one.

#

#   If the fourth argument is non-empty, then the check will be some

#   via 'ghc-pkg list' (which supports patterns), otherwise it will

#   use just 'ghc-pkg latest'.

#

#

#####

AC_DEFUN([AC_GHC_PKG_CHECK],[

    if test -z $GHC_PKG; then

        AC_MSG_ERROR([GHC_PKG not defined])

    fi

    AC_MSG_CHECKING([haskell library $1])

    if test -n "$4"; then

      GHC_PKG_RESULT=$($GHC_PKG --simple-output list '$1'|tail -n1)

    else

      GHC_PKG_RESULT=$($GHC_PKG latest '$1' 2>/dev/null)

    fi

    if test -n "$GHC_PKG_RESULT"; then

      AC_MSG_RESULT($GHC_PKG_RESULT)

      $2

    else

      AC_MSG_RESULT([no])

      $3

    fi

])

#####

#

# SYNOPSIS

#

#   AC_GHC_PKG_REQUIRE(modname, extended)

#

# DESCRIPTION

#

#   Checks for a Haskell (GHC) module, and abort if not found. If the

#   second argument is non-empty, then the check will be some via

#   'ghc-pkg list' (which supports patterns), otherwise it will use

#   just 'ghc-pkg latest'.

#

#

#####

AC_DEFUN([AC_GHC_PKG_REQUIRE],[

    AC_GHC_PKG_CHECK($1, [],

                     [AC_MSG_FAILURE([Required Haskell module $1 not found])],

                     $2)

])