dnl Detect Valgrind location and flags

AC_DEFUN([TPAW_VALGRIND],

[

  enable=$1

  if test -n "$2"; then

    valgrind_req=$2

  else

    valgrind_req="2.1"

  fi

  PKG_CHECK_MODULES(VALGRIND, valgrind > "$valgrind_req",

    have_valgrind_runtime="yes", have_valgrind_runtime="no")

  AC_PATH_PROG(VALGRIND_PATH, valgrind)

  # Compile the instrumentation for valgrind only if the valgrind

  # libraries are installed and the valgrind executable is found

  if test "x$enable" = xyes &&

     test "$have_valgrind_runtime" = yes &&

     test -n "$VALGRIND_PATH" ;

  then

    AC_DEFINE(HAVE_VALGRIND, 1, [Define if valgrind should be used])

    AC_MSG_NOTICE(using compile-time instrumentation for valgrind)

  fi

  AC_SUBST(VALGRIND_CFLAGS)

  AC_SUBST(VALGRIND_LIBS)

  AM_CONDITIONAL(HAVE_VALGRIND, test -n "$VALGRIND_PATH")

])