Early today, Richard [fixed this problem](https://www2.sqlite.org/cgi/src/info/e5d7209e118a8453). Today's pre-release download includes it. I took a look at the assembler code generated by the VS2019 C compiler [a] for the two wrapper functions added to make addressable code for ceil and floor. Such code is in the math library, (for use when code generation does use the intrinsic forms), reached from those wrappers via a lone jump instruction. [a. That would be "Microsoft (R) C/C++ Optimizing Compiler Version 19.28.29335 for x64", Keith. ]