nx-X11: Backport: randr: Clean up compiler warnings about unused and shadowing variables
set but not used variables
shadowing a previous local
A hidden problem was that the VERIFY_RR_* macros define local 'rc'
variables, any other local definitions for those would be shadowed and
generate warnings from gcc. I've renamed the other locals 'ret'
instead of 'rc'.
Signed-off-by:
Keith Packard <keithp@keithp.com>
Backported from Arctica GH 3.6.x branch.
v2: backport to nx-libs 3.6.x (Ulrich Sibiller)
v3: backport to nx-libs 3.5.0.x (Mihai Moldovan)
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