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SubjectRe: [PATCH] dtc: also check <yaml.h> for libyaml
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On 06/09/2020 10:52 AM, Masahiro Yamada wrote:
> On Tue, Jun 9, 2020 at 10:01 AM Jiping Ma <Jiping.Ma2@windriver.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@windriver.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
>>
>> $ pkg-config yaml-0.1 --libs
>> -L/buildarea/jma1/wr-19-0518/19.45/sysroots/aarch64-wrs-linux/usr/lib64
>> -lyaml
This issue happened in Yocto,  After completing the SDK build and
installing it, use a new shell to source the environment and try to
build the helper scripts.
export
SDKTARGETSYSROOT=/buildarea/jma1/wr-19-0518/19.45/sysroots/aarch64-wrs-linux
export
PKG_CONFIG_PATH=$SDKTARGETSYSROOT/usr/lib64/pkgconfig:$SDKTARGETSYSROOT/usr/share/pkgconfig
>
>
>
> If I install libyaml to a non-standard location
> (/home/masahiro/foo), my pkg-config shows as follows:
>
>
>
> masahiro@oscar:~$ pkg-config --cflags yaml-0.1
> -I/home/masahiro/foo/include
> masahiro@oscar:~$ pkg-config --libs yaml-0.1
> -L/home/masahiro/foo/lib -lyaml
>
>
>
>
>
>
>
>>>
>>>> Signed-off-by: Jiping Ma <jiping.ma2@windriver.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
>>>>
>

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