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-rw-r--r--aclocal/check-bsps.m42
1 files changed, 2 insertions, 0 deletions
diff --git a/aclocal/check-bsps.m4 b/aclocal/check-bsps.m4
index 71c8921cd4..673061c69a 100644
--- a/aclocal/check-bsps.m4
+++ b/aclocal/check-bsps.m4
@@ -39,6 +39,8 @@ AC_MSG_RESULT([[$]$1 .. done])
AC_DEFUN(RTEMS_CHECK_CUSTOM_BSP,
[dnl
+AC_REQUIRE([RTEMS_TOP])
+
AC_MSG_CHECKING([for make/custom/[$]$1.cfg])
if test -r "$srcdir/$RTEMS_TOPdir/make/custom/[$]$1.cfg"; then
AC_MSG_RESULT([yes])