tools/turbostat: allow user to alter DESTDIR and PREFIX

Orabug: 24811361

When run
	make -C tools DESTDIR=/my/nice/dir turbostat_install
get a message
	install: cannot create regular file '/usr/bin/turbostat': Permission denied

Allow user to alter DESTDIR and PREFIX variables.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
(cherry picked from commit ac485cb4b3b79fb7ef979cb243ee16e1a1ffa767)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
Signed-off-by: Dhaval Giani <dhaval.giani@oracle.com>

diff --git a/tools/power/x86/turbostat/Makefile b/tools/power/x86/turbostat/Makefile
index 4039854560d0d5dffe32150562a6f11b2791033f..f0cada68ef0488c9932d00c4322ae135890c2943 100644 (file)
--- a/tools/power/x86/turbostat/Makefile
+++ b/tools/power/x86/turbostat/Makefile
@@ -1,7 +1,7 @@
 CC             = $(CROSS_COMPILE)gcc
 BUILD_OUTPUT   := $(CURDIR)
-PREFIX         := /usr
-DESTDIR                :=
+PREFIX         ?= /usr
+DESTDIR                ?=
 
 ifeq ("$(origin O)", "command line")
        BUILD_OUTPUT := $(O)