+# ------------------------------------------------------------------------------
+AC_ARG_ENABLE([elfutils],
+ AS_HELP_STRING([--disable-elfutils],[Disable optional ELFUTILS support]),
+ [case "${enableval}" in
+ yes) have_elfutils=yes ;;
+ no) have_elfutils=no ;;
+ *) AC_MSG_ERROR(bad value ${enableval} for --disable-elfutils) ;;
+ esac],
+ [have_elfutils=auto])
+
+if test "x${have_elfutils}" != xno ; then
+ AC_CHECK_HEADERS(
+ [elfutils/libdwfl.h],
+ [],
+ [if test "x$have_elfutils" = xyes ; then
+ AC_MSG_ERROR([*** ELFUTILS headers not found.])
+ fi])
+
+ AC_CHECK_LIB(
+ [dw],
+ [dwfl_begin],
+ [],
+ [if test "x$have_elfutils" = xyes ; then
+ AC_MSG_ERROR([*** ELFUTILS libs not found.])
+ fi])
+
+ AC_CHECK_LIB(
+ [dw],
+ [dwfl_core_file_attach],
+ [have_elfutils=yes],
+ [if test "x$have_elfutils" = xyes ; then
+ AC_MSG_ERROR([*** ELFUTILS >= 158 is required.])
+ fi])
+
+ if test "x$have_elfutils" = xyes ; then
+ ELFUTILS_LIBS="-lelf -ldw"
+ AC_DEFINE(HAVE_ELFUTILS, 1, [ELFUTILS available])
+ else
+ have_elfutils=no
+ fi
+else
+ ELFUTILS_LIBS=
+fi
+AC_SUBST(ELFUTILS_LIBS)
+AM_CONDITIONAL(HAVE_ELFUTILS, [test "$have_elfutils" = "yes"])
+