This happens in Normal and Huge builds, not in Tiny. Also in Normal
with Motif GUI but not in Tiny with Motif GUI:

normal.c: In function ‘normal_cmd’:
normal.c:991:19: warning: ‘prev_VIsual_active’ may be used
uninitialized [-Wmaybe-uninitialized]
  991 |     if (finish_op || prev_VIsual_active)
      |         ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~
normal.c:972:9: note: ‘prev_VIsual_active’ was declared here
  972 |     int prev_VIsual_active = VIsual_active;
      |         ^~~~~~~~~~~~~~~~~~

I think it's over-cautiousness on the part of  gcc (SUSE Linux) 15.2.1
20251006. It may look silly, but what about replacing line 972 by the
following?

/* avoid gcc warning -Wmaybe-uninitialized a little lower */
int prev_Visual_active = 0;
prev_Visual_active = Visual_active;

Best regards,
Tony.

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