[PATCH] tools: iio: add ability to pass kernel headers

From	Sekhar Nori <nsekhar@ti.com>
Newsgroups	linux.kernel
Subject	[PATCH] tools: iio: add ability to pass kernel headers
Date	2017-04-11 13:10 +0200
Message-ID	<tv1Qm-6cc-7@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Very often, especially when cross compiling, there is a need
to pass kernel headers different from those installed on the
build machine.

Add support for doing this for iio utils by using the
'INSTALL_HDR_PATH' environment variable. This is supported by
'make headers_install' for installing kernel headers at a
user specified location. So you will do:

$ make headers_install ARCH=arm INSTALL_HDR_PATH=<absolute-path>
$ make -C tools/iio ARCH=arm INSTALL_HDR_PATH=<absolute-path>

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
---
 tools/iio/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/iio/Makefile b/tools/iio/Makefile
index 5446d625e17d..75607043d6e2 100644
--- a/tools/iio/Makefile
+++ b/tools/iio/Makefile
@@ -1,5 +1,5 @@
 CC = $(CROSS_COMPILE)gcc
-CFLAGS += -Wall -g -D_GNU_SOURCE
+CFLAGS += -Wall -g -D_GNU_SOURCE -I$(INSTALL_HDR_PATH)/include
 
 BINDIR=usr/bin
 INSTALL_PROGRAM=install -m 755 -p
-- 
2.9.0

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[PATCH] tools: iio: add ability to pass kernel headers Sekhar Nori <nsekhar@ti.com> - 2017-04-11 13:10 +0200
  Re: [PATCH] tools: iio: add ability to pass kernel headers Jonathan Cameron <jic23@kernel.org> - 2017-04-14 16:50 +0200
    Re: [PATCH] tools: iio: add ability to pass kernel headers Jonathan Cameron <jic23@kernel.org> - 2017-04-14 17:30 +0200
      Re: [PATCH] tools: iio: add ability to pass kernel headers Sekhar Nori <nsekhar@ti.com> - 2017-04-18 12:20 +0200
        Re: [PATCH] tools: iio: add ability to pass kernel headers Sekhar Nori <nsekhar@ti.com> - 2017-04-20 16:00 +0200
          Re: [PATCH] tools: iio: add ability to pass kernel headers Randy Dunlap <rdunlap@infradead.org> - 2017-04-20 17:30 +0200
    Re: [PATCH] tools: iio: add ability to pass kernel headers Randy Dunlap <rdunlap@infradead.org> - 2017-04-14 17:30 +0200

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