[PATCH] iputils: add libidn dependency

[Martin Jansa <martin.jansa@gmail.com>]

* https://github.com/iputils/iputils/blob/master/RELNOTES.old
  mentiones that IDN was enabled by default in:
  [s20160308] and surprisingly the same in [s20150815]
  but there are no release notes for s20151218 version we were using until
  now, don't know how it really relates to [s20150815].

* https://github.com/iputils/iputils/commit/f3a461603ef4fb7512ade3bdb73fe1824e294547

* fails with:
  | In file included from ping_common.c:1:0:
  | ping.h:39:10: fatal error: idna.h: No such file or directory
  |  #include <idna.h>
  |           ^~~~~~~~

* Easiest way to reproduce this failure is to remove libidn from gnutls
  PACKAGECONFIG or to use gnutls which doesn't have libidn PACKAGECONFIG
  at all (like the one in meta-gplv2).

* First it leads to following QA issue:
  http://errors.yoctoproject.org/Errors/Build/53212/
  ERROR: iputils-s20161105-r0 do_package_qa: QA Issue: iputils-ping rdepends on libidn, but it isn't a build dependency, missing libidn in DEPENDS or PACKAGECONFIG? [build-deps]
  ERROR: iputils-s20161105-r0 do_package_qa: QA Issue: iputils-traceroute6 rdepends on libidn, but it isn't a build dependency, missing libidn in DEPENDS or PACKAGECONFIG? [build-deps]
  ERROR: iputils-s20161105-r0 do_package_qa: QA run found fatal errors.
  Please consider fixing them.
  ERROR: iputils-s20161105-r0 do_package_qa: Function failed:
  do_package_qa
  ERROR: Logfile of failure stored in: /OE/build/oe-core/tmp-glibc/work/core2-64-oe-linux/iputils/s20161105-r0/temp/log.do_package_qa.7627
  ERROR: Task (/OE/build/oe-core/openembedded-core/meta/recipes-extended/iputils/iputils_s20161105.bb:do_package_qa) failed with exit code '1'

* But if you cleansstate iputils as well (after removing libidn from
  gnutls PACKAGECONFIG) to empty iputils RSS, then you get the error about
  missing idna.h:
  http://errors.yoctoproject.org/Errors/Build/53213/

* Adding the libidn dependency explicitly in iputils recipe fixes the
  issue.

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
---
 meta/recipes-extended/iputils/iputils_s20161105.bb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta/recipes-extended/iputils/iputils_s20161105.bb b/meta/recipes-extended/iputils/iputils_s20161105.bb
index ad7dbc4d4a..0acf2be5d3 100644
--- a/meta/recipes-extended/iputils/iputils_s20161105.bb
+++ b/meta/recipes-extended/iputils/iputils_s20161105.bb
@@ -11,7 +11,7 @@ LIC_FILES_CHKSUM = "file://ping.c;beginline=1;endline=35;md5=f9ceb201733e9a6cf8f
                     file://arping.c;beginline=1;endline=11;md5=fe84301b5c2655c950f8b92a057fafa6 \
                     file://tftpd.c;beginline=1;endline=32;md5=28834bf8a91a5b8a92755dbee709ef96 "
 
-DEPENDS = "gnutls libcap libgcrypt"
+DEPENDS = "gnutls libcap libgcrypt libidn"
 
 SRC_URI = "git://github.com/iputils/iputils \
            file://0001-Fix-build-on-MUSL.patch \
-- 
2.15.1