[yocto] Could not find glib.h

[JH]

Thank you very much Andreas, that fixed it, so much to learn :-).

Appreciate your helps.

- jupiter

On 5/2/19, Andreas Müller <schnitzeltony at gmail.com> wrote:
> On Thu, May 2, 2019 at 12:32 AM JH <jupiter.hce at gmail.com> wrote:
>>
>> Hi Andreas,
>>
>> It was my program, it has been compiled for weeks without any issues
>> until I added an #include <glib.h>, despite the glib-2.0 was defined
>> in the recipe, the do_compile() stopped at following errors, I can see
>> glib-2.0 was built in build and image directory, I can see glib.h was
>> in build and image directory, is it a basic principle if a package
>> library was defined in DEPENDS, the bitback should automatically find
>> the header files and library links? Why it still complained no such
>> file?
>>
>> DEPENDS += "glib-2.0"
>> RDEPENDS += "glib-2.0"
> ^ In case your program links successfully this can go
>
> you could write
>
> do_compile() {
>     CFLAGS="${CFLAGS} `pkg-config --cflags glib-2.0`"
>     LDFLAGS="${LDFLAGS} `pkg-config --libs glib-2.0`"
>     oe_runmake -e
> }
>
> Or similar in your Makefile
>
> And and don't forget
>
> inherit pkgconfig
>
> in your recipe
>
> Andreas
>
>
>>
>> do_compile() {
>>     oe_runmake -e
>> }
>>
>>
>> fatal error: glib.h: No such file or directory #include <glib.h>
>>
>>    ^~~~~~~~
>> compilation terminated.
>>
>> Thank you.
>>
>> Kind regards,
>>
>> - jupiter
>>
>>
>>
>>
>> On 5/1/19, Andreas Müller <schnitzeltony at gmail.com> wrote:
>> > On Wed, May 1, 2019 at 12:35 PM JH <jupiter.hce at gmail.com> wrote:
>> >>
>> >> Thanks Richard, where to run pkg-config? If I run pkg-config in the
>> >> host, it pointed to host Ubuntu package which is different to the
>> >> cross compiler.
>> >>
>> >> On 5/1/19, Richard Purdie <richard.purdie at linuxfoundation.org> wrote:
>> >> > On Wed, 2019-05-01 at 10:43 +1000, JH wrote:
>> >> >> Hi,
>> >> >>
>> >> >> I added glib-2.0 to DEPENDS but it still could find the glib.h,
>> >> >> what
>> >> >> I
>> >> >> could be missing here?
>> >> >>
>> >> >> fatal error: glib.h: No such file or directory
>> >> >> >  #include <glib.h>
>> >> >> >           ^~~~~~~~
>> >> >> > compilation terminated.
>> >> >
>> >> > You probably need to use pkg-config to find out which CFLAGS to use
>> >> > for
>> >> > glib-2.0...
>> >> >
>> > Maybe I missed something but there is not much information about what
>> > you are trying to build. Starts with build system: autotools / cmake /
>> > meson / qmake / waf?
>> >
>> > Is there a place to look into the recipe? That might make support
>> > easier.
>> >
>> > Andreas
>> >
>