Holger I got this with VS:
9>C:\msys64\home\warning\ngspice\src\frontend\inpcom.c(9806): warning C4701: potentially uninitialized local variable 'prevcard' used
9>C:\msys64\home\warning\ngspice\src\frontend\inpcom.c(9806): warning C4703: potentially uninitialized local pointer variable 'prevcard' used
Fixed in pre-master-47
2c0aabd76 ("Remove linker warnings (VS2022)", 2026-04-25)