[yocto] SH4 build failure fix

[McClintock Matthew-B29882]

On Thu, Nov 10, 2011 at 4:36 PM,  <Michael_E_Brown at dell.com> wrote:
> I'm presently working on porting the build environment for three existing embedded projects over to use yocto. Unfortunately, the project which has to go first is based on an SH4 chip, which isn't on the officially supported yocto architecture list. I gave the compile a go, and ran into a build error in gcc-cross-intermediate:
>
> build-edison-sh4/tmp/sysroots/i686-linux/usr/bin/sh4-poky-linux/sh4-poky-linux-ld: cannot find crti.o: No such file or directory
> build-edison-sh4/tmp/sysroots/i686-linux/usr/bin/sh4-poky-linux/sh4-poky-linux-ld: cannot find -lc
> build-edison-sh4/tmp/sysroots/i686-linux/usr/bin/sh4-poky-linux/sh4-poky-linux-ld: cannot find crtn.o: No such file or directory
>
> Trying to figure out the source of this build error, I found that base openembedded does compile this package successfully, so I started focusing on the differences. I narrowed the build failure down to this line in gcc-cross4.inc, which is present in openembedded, but absent in yocto/poky:
>    gcc-cross4.inc
>    EXTRA_OECONF_append_sh4 = " --with-multilib-list= --enable-incomplete-targets "
>
> After I added this one line, I was able to sucessfully build a base yocto image for qemu sh4. Is it possible to get this added to the upstream yocto build?

Can you find the offending commit with 'git blame'?

-M