Snippets for xsnow 3.9.4 from Fedora x86_64

Sourced from https://kojipkgs.fedoraproject.org/packages/xsnow/3.9.4/1.fc46/data/logs/x86_64/build.log.

• snow.c:236:8: warning: variable ‘n’ set but not used [-Wunused-but-set-variable=]
    236 |    int n = 0;
        |        ^
  

• birds.c:636:30: warning: variable ‘cache’ set but not used [-Wunused-but-set-variable=]
    636 |                static double cache = 0;
        |                              ^~~~~
  

• birds.c:635:27: warning: variable ‘table_counter’ set but not used [-Wunused-but-set-variable=]
    635 |                static int table_counter = 0;
        |                           ^~~~~~~~~~~~~
  

• birds.c:660:24: warning: variable ‘skipped’ set but not used [-Wunused-but-set-variable=]
    660 |             static int skipped = 0;
        |                        ^~~~~~~
  

• fallensnow.c:462:11: warning: variable ‘adjustments’ set but not used [-Wunused-but-set-variable=]
    462 |       int adjustments = 0;
        |           ^~~~~~~~~~~
  

• xdo.c:1705:13: warning: the comparison will always evaluate as ‘true’ for the pointer operand in ‘*keys + (sizetype)((long unsigned int)*nkeys * 32)’ must not be NULL [-Waddress]
   1705 |             assert(*keys + *nkeys);
        |             ^~~~~~