# $Id: ax_ll.m4 208 2010-05-20 10:24:54Z mmatloka $
#
# SYNOPSIS
#
#   AX_LL([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
#
# DESCRIPTION
#
#   Check for LL libraries and headers.
#
#   This macro calls::
#
#     AC_SUBST(LL_INCLUDES)
#     AC_SUBST(LL_LDFLAGS)
#     AC_SUBST(LL_LIBS)
#
# LAST MODIFICATION
#
#   2010-04-08
#
# LICENSE
#
#   Written by:
#     Mariusz Mamoński <mamonski@man.poznan.pl>
#   Based on macro for LSF written by
#     Lukasz Ciesnik <lukasz.ciesnik@gmail.com>
#   Placed under Public Domain.
#

AC_DEFUN([AX_LL],[
AC_ARG_WITH([ll-inc], [AC_HELP_STRING([--with-ll-inc=<include-dir>],
		[Path to LoadLeveler headers directory (containing llapi.h)])])
AC_ARG_WITH([ll-lib], [AC_HELP_STRING([--with-ll-lib=<lib-dir>],
		[Path to directory with LoadLevler libraries (containing libllapi.a)])])

AC_SUBST(LL_INCLUDES)
AC_SUBST(LL_LDFLAGS)
AC_SUBST(LL_LIBS)

AC_MSG_NOTICE([checking for LoadLeveler])

AC_MSG_CHECKING([for LoadLeveler compile flags])
ax_ll_msg=""
if test x$with_ll_inc != x; then
	LL_INCLUDES="-I${with_ll_inc}"
else
	LLSUBMIT_PATH=`which llsubmit`
	if test x"$LLSUBMIT_PATH" != x; then
		LLSUBMIT_DIR=`dirname $LLSUBMIT_PATH`
		LL_HOME=`dirname $LLSUBMIT_DIR`
		LL_INCLUDES="-I$LL_HOME/include"
	else
		ax_ll_msg="no llsubmit in PATH"
	fi
fi

AC_MSG_RESULT([$LL_INCLUDES$ax_ll_msg])

AC_MSG_CHECKING([for LoadLeveler library dir])
ax_ll_msg=""
if test x$with_ll_lib == x; then
	
	LLSUBMIT_PATH=`which llsubmit`
	
	if test x"$LLSUBMIT_PATH" != x; then
		LLSUBMIT_DIR=`dirname $LLSUBMIT_PATH`
		LL_HOME=`dirname $LLSUBMIT_DIR`
		with_ll_lib=$LL_HOME/lib
	else
		ax_ll_msg="no llsubmit in PATH"
	fi
fi
AC_MSG_RESULT([$with_ll_lib$ax_ll_msg])


LL_LIBS="-lllapi "
LL_LDFLAGS="-L${with_ll_lib}"


CPPFLAGS_save="$CPPFLAGS"
LDFLAGS_save="$LDFLAGS"
LIBS_save="$LIBS"
CPPFLAGS="$CPPFLAGS $LL_INCLUDES"
LDFLAGS="$LDFLAGS $LL_LDFLAGS"
LIBS="$LIBS $LL_LIBS"

ax_ll_ok="no"

AC_MSG_CHECKING([for usable LL libraries/headers])
AC_RUN_IFELSE([AC_LANG_PROGRAM([[ #include "llapi.h" ]],
		[[ LL_job job_info; /*at least check for declared structs */
		   return 0;
		 ]])],
	[ ax_ll_ok="yes"],
	[ echo "*** The LoadLeveler test program failed to link or run. See the file config.log"
	  echo "*** for the exact error that occured."],
	[
		ax_ll_ok=yes
		echo $ac_n "cross compiling; assumed OK... $ac_c"
	])
CPPFLAGS="$CPPFLAGS_save"
LDFLAGS="$LDFLAGS_save"
LIBS="$LIBS_save"
AC_MSG_RESULT([$ax_ll_ok])

if test x"$ax_ll_ok" = xyes; then
	ifelse([$1], , :, [$1])
else
	ifelse([$2], , :, [$2])
fi
])