[Buildroot] [PATCH v7 2/8] Makefile: move definition of TARGET_DIR inside .config condition

[Thomas Petazzoni <thomas.petazzoni@bootlin.com>]

In a follow-up commit introducing per-package directory support, we
will need to define TARGET_DIR in a different way depending on the
value of a Config.in option. To make this possible, the definition of
TARGET_DIR should be moved inside the BR2_HAVE_DOT_CONFIG condition.

We have verified that $(TARGET_DIR) is only used within the
BR2_HAVE_DOT_CONFIG condition. Outside of this condition, such as in
the "clean" target, $(BASE_TARGET_DIR) is used.

Suggested-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
---
 Makefile | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index c5b78b3274..9de8e0c725 100644
--- a/Makefile
+++ b/Makefile
@@ -204,10 +204,7 @@ BR_GRAPH_OUT := $(or $(BR2_GRAPH_OUT),pdf)
 
 BUILD_DIR := $(BASE_DIR)/build
 BINARIES_DIR := $(BASE_DIR)/images
-# The target directory is common to all packages,
-# but there is one that is specific to each filesystem.
 BASE_TARGET_DIR := $(BASE_DIR)/target
-TARGET_DIR = $(if $(ROOTFS),$(ROOTFS_$(ROOTFS)_TARGET_DIR),$(BASE_TARGET_DIR))
 # initial definition so that 'make clean' works for most users, even without
 # .config. HOST_DIR will be overwritten later when .config is included.
 HOST_DIR := $(BASE_DIR)/host
@@ -457,6 +454,10 @@ TAR_OPTIONS = $(call qstrip,$(BR2_TAR_OPTIONS)) -xf
 # packages compiled for the host go here
 HOST_DIR := $(call qstrip,$(BR2_HOST_DIR))
 
+# The target directory is common to all packages,
+# but there is one that is specific to each filesystem.
+TARGET_DIR = $(if $(ROOTFS),$(ROOTFS_$(ROOTFS)_TARGET_DIR),$(BASE_TARGET_DIR))
+
 ifneq ($(HOST_DIR),$(BASE_DIR)/host)
 HOST_DIR_SYMLINK = $(BASE_DIR)/host
 $(HOST_DIR_SYMLINK): $(BASE_DIR)
-- 
2.20.1