FlexiBLAS - A BLAS and LAPACK wrapper library with runtime exchangeable backends. This is only a mirror of https://gitlab.mpi-magdeburg.mpg.de/software/flexiblas-release
Fixed in the dev sources. But be aware, that FlexiBLAS is not developed on Windows, nor tested on this platform. Furthermore, no support will be provided.
https://github.com/mpimd-csc/flexiblas/blob/ff45f246a0b4b489f27ec88e3d114e664ab49f55/libcscutils/CMakeModules/FortranCompilerSettings.cmake#L116
A colon is missing on Windows with the Intel compiler.
Intel Fortran compiler reference: https://www.intel.com/content/www/us/en/docs/fortran-compiler/developer-guide-reference/2024-1/heap-arrays.html