AC_ARG_WITH(cudd,
	[ --with-cudd[=DIR]           use CUDD package in DIR],
	yap_cv_cudd="$withval",
	[yap_cv_cudd=no])

if test "$yap_cv_cudd" = no 
then
  ENABLE_CUDD="@# "
  ENABLE_BDDLIB="@# "
else
  if test "$dynamic_bdd" = yes
  then
    ENABLE_BDDLIB=""
  else
    ENABLE_BDDLIB="@# "
  fi
  ENABLE_CUDD=""
fi



if test "$yap_cv_cudd" != no; then

oldlibs="$LIBS"

if test "$yap_cv_cudd" != "NONE" -a "$yap_cv_cudd" != "yes"; then
   CUDD_CPPFLAGS="-I $yap_cv_cudd/include"
   cudd_dir="$yap_cv_cudd"
elif test "$prefix" != "NONE"; then
   CUDD_CPPFLAGS="-I $prefix/include"
   cudd_dir="$prefix"
else
   CUDD_CPPFLAGS="-I /usr/local/include"
   cudd_dir=/usr/local
fi

OLD_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $CUDD_CPPFLAGS" 

AC_CHECK_HEADERS(util.h cudd/util.h cudd.h cudd/cudd.h)
AC_CHECK_HEADERS(cuddInt.h cudd/cuddInt.h)

dnl cudd can be most everywhere
if test -d "$cudd_dir/lib64/cudd" -a "$YAP_TARGET" = amd64; then
  LIBS="$LIBS -L $cudd_dir/lib64/cudd"
elif test -d "$cudd_dir/lib64" -a "$YAP_TARGET" = amd64; then
  LIBS="$LIBS -L $cudd_dir/lib64  -L $cudd_dir/lib"
elif test -d "$cudd_dir/lib/cudd"; then
  LIBS="$LIBS -L $cudd_dir/lib/cudd"
elif test -d "$cudd_dir/lib"; then
  LIBS="$LIBS -L $cudd_dir/lib"
fi

if test -d "$cudd_dir/util"; then
  LIBS="$LIBS -L $cudd_dir/util"
fi

AC_SEARCH_LIBS(util_print_cpu_stats, [cuddutil util])

if test -d "$cudd_dir/st"; then
  LIBS="$LIBS -L $cudd_dir/st"
fi

AC_SEARCH_LIBS(st_insert, [cuddst st])

if test -d "$cudd_dir/epd"; then
  LIBS="$LIBS -L $cudd_dir/epd"
fi

AC_SEARCH_LIBS(EpdAdd, [epd])

if test -d "$cudd_dir/mtr"; then
  LIBS="$LIBS -L $cudd_dir/mtr"
fi

AC_SEARCH_LIBS(Mtr_InitTree, [mtr])

if test -d "$cudd_dir/cudd"; then
  LIBS="$LIBS -L $cudd_dir/cudd"
fi

AC_SEARCH_LIBS(Cudd_Init, [cudd], [cudd_installed="yes"], [cudd_installed="no"])

CPPFLAGS="$OLD_CPPFLAGS"

if test "$cudd_installed" = yes; then
  CUDD_LDFLAGS="$LIBS"
else
  cat << EOF
##################################################################
# ERROR: Could not find cudd library. Either I don't have the
# correct path, or CUDD is installed in some strange way
##################################################################
EOF
     fi

LIBS="$oldlibs"

fi

AC_SUBST(ENABLE_CUDD)
AC_SUBST(ENABLE_BDDLIB)
AC_SUBST(CUDD_LDFLAGS)
AC_SUBST(CUDD_CPPFLAGS)