The real solution is to avoid the problem:
If you’re compiling the program yourself: libisl-23.dll not found
Never symlink different major versions. ISL’s API breaks between major versions. You’ll get silent data corruption or segfaults. The real solution is to avoid the problem:
pacman -S mingw-w64-i686-isl
libisl-23.dll is a DLL file associated with the Integer Set Library (ISL), which is used by various applications, particularly those involving mathematical computations or requiring specific library functions. The ISL is often utilized in academic, scientific, and engineering applications for tasks such as polyhedral computations. which is used by various applications