Freeciv

c23 build on void linux:

../../../src/utility/fcintl.c:124:29: warning: use of logical '&&' with constant operand [-Wconstant-logical-operand]
124 | if (LOCALEDIR⁰ != '/' && LOCALEDIR⁰ != '\\') { | ^ ~_~~~~~~~~~~~~~~~~~
../../../src/utility/fcintl.c:124:29: note: use '&' for a bitwise operation
124 | if (LOCALEDIR⁰ != '/' && LOCALEDIR⁰ != '\\') { | ^~ | &
../../../src/utility/fcintl.c:124:29: note: remove constant to silence this warning
124 | if (LOCALEDIR⁰ != '/' && LOCALEDIR⁰ != '\\') { | ^_~~~~~~~~~~~~~~~~~~~~
1 warning generated.