While gcc6 used, build old groff (for anti-GPLv3 reasons) failed:
.....
|groff-1.18.1.4/src/devices/grolbp/charset.h:69:1: error: narrowing
conversion of '130' from 'int' to 'char' inside { } [-Wnarrowing]
......
In upstream git://git.savannah.gnu.org/groff.git,
the following commit fix the issue, but the license is GPLV3,
we could not backport it to the old groff which license is GPLV2.
...
commit d180038ae0da19655bc2760ae2043efa0550a76c
Author: Werner LEMBERG <wl@gnu.org>
Date: Wed Apr 16 21:11:07 2003 +0000
* src/devices/grolbp/charset.h (symset): Use `unsigned char'.
...
We use another different way to fix the issue.
[YOCTO #9896]
(From OE-Core rev: 0d79e7b4373053a7f20f18ed962c5a17a969e57e)
Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
564657edae