Merge pull request #926 from EvanLloyd/win_make_4

[project/bcm63xx/atf.git] / make_helpers / unix.mk

diff --git a/make_helpers/unix.mk b/make_helpers/unix.mk
index 61b1368b2d4d44dd580d4e823f1aa6e9086c9ec2..17f8a7c279c7a6eed1401fb975ad84e7605e08bc 100644 (file)
--- a/make_helpers/unix.mk
+++ b/make_helpers/unix.mk
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+# Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -43,11 +43,14 @@ ifndef UNIX_MK
 
     # ${1} is the directory to be generated.
     # ${2} is optional, and allows a prerequisite to be specified.
+    # Do nothing if $1 == $2, to ignore self dependencies.
     define MAKE_PREREQ_DIR
+        ifneq (${1},${2})
 
 ${1} : ${2}
        ${Q}mkdir -p  "${1}"
 
+        endif
     endef
 
     define SHELL_REMOVE_DIR