https://github.com/gentoo/gentoo/blob/master/dev-embedded/openocd/openocd-9999.ebuild

openocd-9999.ebuild requires 4 packages which don't exist in the current chromium os chroot:

- sys-apps/texinfo-5+
- dev-perl/Unicode-EastAsianWidth
- dev-embedded/libjaylink
- virtual/perl-ExtUtils-MakeMaker

Some of these are build time dependencies. I'm pondering whether we should wait for 0.10.0 release and use a binary package so that we avoid introducing unnecessary build dependencies.

It turned out that openocd-9999.ebuild doesn't compile:

/usr/include/libftdi1/ftdi.h:438:12: warning: function declaration isn't a prototype [-Wstrict-prototypes]
     struct ftdi_version_info ftdi_get_library_version();
            ^
In file included from openjtag.c:80:0:
/usr/include/libftdi1/ftdi.h:438:12: warning: function declaration isn't a prototype [-Wstrict-prototypes]
     struct ftdi_version_info ftdi_get_library_version();
            ^
jlink.c: In function 'jlink_speed':
jlink.c:322:34: warning: passing argument 2 of 'jaylink_get_speeds' from incompatible pointer type
   ret = jaylink_get_speeds(devh, &freq, &divider);
                                  ^
In file included from jlink.c:42:0:
/usr/include/libjaylink/libjaylink.h:479:17: note: expected 'struct jaylink_speed *' but argument is of type 'uint32_t *'
 JAYLINK_API int jaylink_get_speeds(struct jaylink_device_handle *devh,
                 ^
jlink.c:322:9: error: too many arguments to function 'jaylink_get_speeds'
   ret = jaylink_get_speeds(devh, &freq, &divider);
         ^
In file included from jlink.c:42:0:
/usr/include/libjaylink/libjaylink.h:479:17: note: declared here
 JAYLINK_API int jaylink_get_speeds(struct jaylink_device_handle *devh,
                 ^
jlink.c: In function 'jlink_register':
jlink.c:442:8: error: too few arguments to function 'jaylink_register'
  ret = jaylink_register(devh, &conn, connlist, NULL, NULL);
        ^
In file included from jlink.c:42:0:
/usr/include/libjaylink/libjaylink.h:399:17: note: declared here
 JAYLINK_API int jaylink_register(struct jaylink_device_handle *devh,
                 ^
jlink.c: In function 'jlink_init':
jlink.c:526:2: warning: implicit declaration of function 'jaylink_get_device_list' [-Wimplicit-function-declaration]
  ret = jaylink_get_device_list(jayctx, &devs);
  ^
jlink.c:579:2: warning: implicit declaration of function 'jaylink_free_device_list' [-Wimplicit-function-declaration]
  jaylink_free_device_list(devs, 1);
  ^
jlink.c: In function 'jlink_quit':
jlink.c:742:9: error: too few arguments to function 'jaylink_unregister'
   ret = jaylink_unregister(devh, &conn, connlist, NULL, NULL);
         ^
In file included from jlink.c:42:0:
/usr/include/libjaylink/libjaylink.h:403:17: note: declared here
 JAYLINK_API int jaylink_unregister(struct jaylink_device_handle *devh,

CL is under review: https://chromium-review.googlesource.com/c/540788/.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/overlays/chromiumos-overlay/+/fddb8e6436cbb28cd6d00d8abb1b840f8fdf7895

commit fddb8e6436cbb28cd6d00d8abb1b840f8fdf7895
Author: Daisuke Nojiri <dnojiri@chromium.org>
Date: Wed Jun 21 02:30:19 2017

openocd: Disable jlink for 0.10.0

This patch disables Segger J-Link for building openocd-0.10.0. We
currently don't use J-Link. It requires upgrading libjaylink, which
is not yet supported by official Gentoo portage repository.

Developers need to manually add plugdev to /etc/group.

BUG= chromium:626487 
TEST=Run emerge-fizz openocd and emerge openocd. cts/cts.py -m meta.

Change-Id: Ifb7fc2d3d812f9dfe00973cef48258f3709dcc06
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/540792
Reviewed-by: Mike Frysinger <vapier@chromium.org>

[modify] https://crrev.com/fddb8e6436cbb28cd6d00d8abb1b840f8fdf7895/profiles/targets/sdk/package.use
[modify] https://crrev.com/fddb8e6436cbb28cd6d00d8abb1b840f8fdf7895/profiles/targets/chromeos/package.use

The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/overlays/portage-stable/+/e2d95c585898d9a7e71a9ef3ac180b344b27635b

commit e2d95c585898d9a7e71a9ef3ac180b344b27635b
Author: Daisuke Nojiri <dnojiri@chromium.org>
Date: Wed Jun 21 16:22:00 2017

openocd: Upgrade to 0.10.0

This patch upgrades openocd from 0.9.0 to 0.10.0. It also adds
dev-libs/hidapi as a new dependency.

Developers need to add plugdev to /etc/group manually.

BUG= chromium:626487 
TEST=run cts/cts.py -m meta. emerge openocd. emerge-fizz openocd.
CQ-DEPEND=CL:540792

Change-Id: I40c7a4f529d280e58c65f12d71609aa3089bbac5
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/540788
Reviewed-by: Mike Frysinger <vapier@chromium.org>

[modify] https://crrev.com/e2d95c585898d9a7e71a9ef3ac180b344b27635b/dev-embedded/openocd/metadata.xml
[modify] https://crrev.com/e2d95c585898d9a7e71a9ef3ac180b344b27635b/dev-embedded/openocd/Manifest
[rename] https://crrev.com/e2d95c585898d9a7e71a9ef3ac180b344b27635b/dev-embedded/openocd/openocd-0.10.0.ebuild
[add] https://crrev.com/e2d95c585898d9a7e71a9ef3ac180b344b27635b/dev-libs/hidapi/hidapi-0.8.0_rc1_p20140719.ebuild
[add] https://crrev.com/e2d95c585898d9a7e71a9ef3ac180b344b27635b/metadata/md5-cache/dev-libs/hidapi-0.8.0_rc1_p20140719
[delete] https://crrev.com/3a78af6901abd96452d3a42bf5c616d3c6df2d3e/metadata/md5-cache/dev-embedded/openocd-0.9.0
[add] https://crrev.com/e2d95c585898d9a7e71a9ef3ac180b344b27635b/metadata/md5-cache/dev-embedded/openocd-0.10.0
[add] https://crrev.com/e2d95c585898d9a7e71a9ef3ac180b344b27635b/dev-libs/hidapi/metadata.xml
[add] https://crrev.com/e2d95c585898d9a7e71a9ef3ac180b344b27635b/dev-libs/hidapi/Manifest
[add] https://crrev.com/e2d95c585898d9a7e71a9ef3ac180b344b27635b/dev-embedded/openocd/files/openocd-0.8.0-jimtcl-0.75.patch