linux-kernel - Re: [PATCH] dtc: also check <yaml.h> for libyaml

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Date:   Tue, 9 Jun 2020 11:43:42 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Jiping Ma <Jiping.Ma2@...driver.com>
Cc:     Rob Herring <robh@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        DTML <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] dtc: also check <yaml.h> for libyaml

On Tue, Jun 9, 2020 at 10:01 AM Jiping Ma <Jiping.Ma2@...driver.com> wrote:
>
>
>
> On 06/09/2020 03:09 AM, Rob Herring wrote:
> > On Mon, Jun 8, 2020 at 2:42 AM Jiping Ma <jiping.ma2@...driver.com> wrote:
> >> yamltree.c includes <yaml.h>, If /usr/include/yaml.h does not exist,
> >> it fails to build.
> > Does this patch fix your issue?:
> >
> > https://lore.kernel.org/linux-devicetree/20200505100319.741454-1-masahiroy@kernel.org/
> No, it did not fix the issue.
>
> $ pkg-config --cflags yaml-0.1
>


Then, this is a problem on your system.






> $ pkg-config yaml-0.1 --libs
> -L/buildarea/jma1/wr-19-0518/19.45/sysroots/aarch64-wrs-linux/usr/lib64
> -lyaml
>
> >
> >
> >> Signed-off-by: Jiping Ma <jiping.ma2@...driver.com>
> >> ---
> >>   scripts/dtc/Makefile | 4 ++++
> >>   1 file changed, 4 insertions(+)
> >>
> >> diff --git a/scripts/dtc/Makefile b/scripts/dtc/Makefile
> >> index b5a5b1c..b49dfea 100644
> >> --- a/scripts/dtc/Makefile
> >> +++ b/scripts/dtc/Makefile
> >> @@ -18,9 +18,13 @@ $(error dtc needs libyaml for DT schema validation support. \
> >>   endif
> >>   HOST_EXTRACFLAGS += -DNO_YAML
> >>   else
> >> +ifeq ($(wildcard /usr/include/yaml.h),)
> >> +HOST_EXTRACFLAGS += -DNO_YAML
> >> +else
> >>   dtc-objs       += yamltree.o
> >>   HOSTLDLIBS_dtc := $(shell pkg-config yaml-0.1 --libs)
> >>   endif
> >> +endif
> >>
> >>   # Generated files need one more search path to include headers in source tree
> >>   HOSTCFLAGS_dtc-lexer.lex.o := -I $(srctree)/$(src)
> >> --
> >> 1.9.1
> >>
>


--
Best Regards
Masahiro Yamada