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Fix builds of the ppp recipe with most toolchains

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A patch in oe-core is needed, at this time, to fix builds with
linux-libc-headers from the 4.8 Linux kernel or newer, which is not the case
for most external toolchains. Unfortunately, this patch also breaks the build
of ppp with older linux-libc-headers, so we need to revert it. A note in the
README is added explaining how to disable this for external toolchains with
recent enough kernel libc headers.

Signed-off-by: Christopher Larson <chris_larson@mentor.com>
This commit is contained in:
Christopher Larson
2016-10-18 15:31:44 -07:00
parent 9bb9adb28d
commit ec84c4680d
2 changed files with 16 additions and 6 deletions
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16
README.md
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@@ -15,13 +15,17 @@
- If it's an ia32 toolchain, make sure you did *not* let it modify your PATH,
and if you did, remove it.
This is necessary because the ia32 Sourcery G++ toolchain
shipped non-prefixed binaries (e.g. `gcc` rather than `i586-none-linux-gcc`), which
This is necessary because the ia32 Sourcery G++ toolchain shipped
non-prefixed binaries (e.g. `gcc` rather than `i586-none-linux-gcc`), which
means bitbake would be unable to run the host's gcc directly anymore.
- Add the meta-sourcery layer to your `BBLAYERS` in `conf/bblayers.conf`. Please make
certain that it is listed before the `meta` layer, as this ensures meta-sourcery gets
priority over meta.
- Set `EXTERNAL_TOOLCHAIN = "/path/to/your/sourcery-g++-install"` in `conf/local.conf`.
- Add the meta-sourcery layer to your `BBLAYERS` in `conf/bblayers.conf`.
Please make certain that it is listed before the `meta` layer, as this
ensures meta-sourcery gets priority over meta.
- Set `EXTERNAL_TOOLCHAIN = "/path/to/your/sourcery-g++-install"` in
`conf/local.conf`.
- If the external toolchain was built with linux-libc-headers from the 4.8
Linux kernel or newer, set `KERNEL_48_PATCH_REMOVE = ""` in
`conf/local.conf` to fix the build of the `ppp` recipe.
### Optional Functionality