On 11/04/17 12:06, Sekhar Nori wrote: > 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@xxxxxx> It's a bit of an oddity as that usually refers to where to put the headers rather than where they are. Is there a more general solution? I couldn't find anything particularly consistent in tools. > --- > 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 > -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html