[Buildroot] Where is mtd/mtd-user.h supposed to come from?

[Buildroot] Where is mtd/mtd-user.h supposed to come from?

[Grant Edwards]

The build of uboot's fw_env target tool is failing because
there is no mtd/mtd-user.h file.

Where is the mtd include directory supposed to come from?

Is it supposed to come from the kernel-headers or from the mtd
package?

It's present in both, but never gets copied into the toolchain
include tree when the toolchainis built, nor into the staging
include tree when mtd is built.

-- 
Grant Edwards                   grante             Yow! Hmmm ... A hash-singer
                                  at               and a cross-eyed guy were
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[Buildroot] Where is mtd/mtd-user.h supposed to come from?

[Grant Edwards]

On 2010-01-07, Grant Edwards <grant.b.edwards@gmail.com> wrote:

> The build of uboot's fw_env target tool is failing because
> there is no mtd/mtd-user.h file.

Manually copying the mtd directory from the kernel headers into
the toolchain /usr/include directory allows mtd stuff to build.
I don't know how to get buildroot to do that when it's building
a toolchain.

Though the mtd programs build, they still wonn't run, since
libgcc_s is missing, but more on that in another thread...

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[Buildroot] Where is mtd/mtd-user.h supposed to come from?

[Will Wagner]

On 07/01/2010 22:17, Grant Edwards wrote:
> On 2010-01-07, Grant Edwards<grant.b.edwards@gmail.com>  wrote:
>
>
>> The build of uboot's fw_env target tool is failing because
>> there is no mtd/mtd-user.h file.
>>
> Manually copying the mtd directory from the kernel headers into
> the toolchain /usr/include directory allows mtd stuff to build.
> I don't know how to get buildroot to do that when it's building
> a toolchain.
>
>

Rather belatedly I realise that I am seeing the same problem. When the 
kernel headers are installed I get mtd-user.h in 
toolchain/linux/include. Also when I build mtd-utils the header is in 
build/mtd_orig/include. However it does not get copied in 
staging/usr/include so any apps I write that use the header fail to compile.

I have previously fixed this my adding a rule that copies the headers 
from build/mtd_orig/include when the mtd package is built.

Is this a good way to do this? Why aren't all the kernel headers made 
available in staging/usr/include? How would anyone else fix this?

Thanks
Will

[Buildroot] Where is mtd/mtd-user.h supposed to come from?

[Grant Edwards]

On 2010-01-26, Will Wagner <will_wagner@carallon.com> wrote:
Grant Edwards<grant.b.edwards@gmail.com>  wrote:

>>> The build of uboot's fw_env target tool is failing because
>>> there is no mtd/mtd-user.h file.
>>>
>> Manually copying the mtd directory from the kernel headers
>> into the toolchain /usr/include directory allows mtd stuff to
>> build. I don't know how to get buildroot to do that when it's
>> building a toolchain.
>
> Rather belatedly I realise that I am seeing the same problem.
> When the kernel headers are installed I get mtd-user.h in 
> toolchain/linux/include. Also when I build mtd-utils the
> header is in build/mtd_orig/include. However it does not get
> copied in staging/usr/include so any apps I write that use the
> header fail to compile.
>
> I have previously fixed this my adding a rule that copies the
> headers from build/mtd_orig/include when the mtd package is
> built.
>
> Is this a good way to do this? Why aren't all the kernel
> headers made available in staging/usr/include?

Good question.

> How would anyone else fix this?

I ended up writing a shell script to do buildroot "make" runs.
After building the toolchain, that shell script copies the mtd
header files and some library files into the places required to
produce a usable toolchain.

-- 
Grant Edwards                   grante             Yow! Actually, what I'd
                                  at               like is a little toy
                               visi.com            spaceship!!