K 10
svn:author
V 8
pizzamig
K 8
svn:date
V 27
2018-03-16T14:29:38.083657Z
K 7
svn:log
V 250
devel/gdb: fix build on current

Clang 6 doesn't allow negative numbers to be implicitely converted to
unsigned types.
This patch explicits all casts.
While I'm here, add an option to silent tons of warning messages

PR:		226644
Reported by:	rakuco@

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