Khem Raj bd193a0115 libgpg-error: Add -P option to CPPFLAGS
Fixes https://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg1301822.html

libgpg-error FTBFS when built with gcc-5. Here is the relevant excerpt:

| Making all in src
| make[4]: Entering directory '/tmp/buildd/libgpg-error/libgpg-error-1.17/src'
| gawk -f ./mkstrtable.awk -v textidx=3 \
|         ./err-sources.h.in >err-sources.h
| gawk -f ./mkstrtable.awk -v textidx=3 \
|         ./err-codes.h.in >err-codes.h
| gawk -f ./mkerrnos.awk ./errnos.in >code-to-errno.h
| gawk -f ./mkerrcodes1.awk ./errnos.in >_mkerrcodes.h
| gcc -E -D_FORTIFY_SOURCE=2  _mkerrcodes.h | grep GPG_ERR_ | \
|                gawk -f ./mkerrcodes.awk >mkerrcodes.h
| rm _mkerrcodes.h
| gcc -I. -I. -o mkerrcodes ./mkerrcodes.c
| In file included from ./mkerrcodes.c:26:0:
| ./mkerrcodes.h:9:5: error: expected expression before ',' token
|    { , "GPG_ERR_E2BIG" },
|      ^

It makes invalid assumptions on undefined behaviour of gcc. To see why,
let us look at the contents of the intermediate steps:

_mkerrcodes.h (deleted):
| ...
| #ifdef E2BIG
| E2BIG   GPG_ERR_E2BIG
| #endif
| #ifdef WSAE2BIG
| WSAE2BIG        GPG_ERR_E2BIG
| #endif
| ...

gcc -E -D_FORTIFY_SOURCE=2  _mkerrcodes.h | grep -v '^$':
| ...
| # 26 "_mkerrcodes.h" 2
| 7
| # 31 "_mkerrcodes.h"
|      GPG_ERR_E2BIG
| # 37 "_mkerrcodes.h" 3 4
| 13
| # 37 "_mkerrcodes.h"
|       GPG_ERR_EACCES
| ...

As can be seen here, the cpp from gcc-5 can split lines and "grep
GPG_ERR_" fails to account for that.

Change-Id: I6f1476e4afc7163ebc3a05106ceaa3b83e3fab3e
(From OE-Core rev: 3993378c9a8994688fda15a5cd05e04a435d2d54)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2015-03-10 10:47:42 +00:00
2015-03-10 10:47:42 +00:00
2014-01-02 12:58:54 +00:00

Poky

Poky is an integration of various components to form a complete prepackaged build system and development environment. It features support for building customised embedded device style images. There are reference demo images featuring a X11/Matchbox/GTK themed UI called Sato. The system supports cross-architecture application development using QEMU emulation and a standalone toolchain and SDK with IDE integration.

Additional information on the specifics of hardware that Poky supports is available in README.hardware. Further hardware support can easily be added in the form of layers which extend the systems capabilities in a modular way.

As an integration layer Poky consists of several upstream projects such as BitBake, OpenEmbedded-Core, Yocto documentation and various sources of information e.g. for the hardware support. Poky is in turn a component of the Yocto Project.

The Yocto Project has extensive documentation about the system including a reference manual which can be found at: http://yoctoproject.org/documentation

OpenEmbedded-Core is a layer containing the core metadata for current versions of OpenEmbedded. It is distro-less (can build a functional image with DISTRO = "nodistro") and contains only emulated machine support.

For information about OpenEmbedded, see the OpenEmbedded website: http://www.openembedded.org/

Where to Send Patches

As Poky is an integration repository (built using a tool called combo-layer), patches against the various components should be sent to their respective upstreams:

bitbake: Git repository: http://git.openembedded.org/bitbake/ Mailing list: bitbake-devel@lists.openembedded.org

documentation: Git repository: http://git.yoctoproject.org/cgit/cgit.cgi/yocto-docs/ Mailing list: yocto@yoctoproject.org

meta-yocto(-bsp): Git repository: http://git.yoctoproject.org/cgit/cgit.cgi/meta-yocto(-bsp) Mailing list: poky@yoctoproject.org

Everything else should be sent to the OpenEmbedded Core mailing list. If in doubt, check the oe-core git repository for the content you intend to modify. Before sending, be sure the patches apply cleanly to the current oe-core git repository.

Git repository: http://git.openembedded.org/openembedded-core/
Mailing list: openembedded-core@lists.openembedded.org

Note: The scripts directory should be treated with extra care as it is a mix of oe-core and poky-specific files.

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