OpenMP Error Compiling FLOWExaFM

[Ubilot3000]

I downloaded MinGW and CMake to compile FLOWExaFM, but it can't seem to find a OpenMP C++ compiler . I don't know how to set the flag so it uses it. I'm running it through Git Bash on Windows to use the sh build.sh command. I'm unfamiliar with Julia and C so I don't know what I'm missing. Here's the error log:

$ sh build.sh --fopenmp
Removing existing build
Copying files
Configuring build
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /usr/bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... no
checking whether make supports nested variables... no
checking whether to enable maintainer-specific portions of Makefiles... no
checking for CC... no
checking for icpc... no
checking for g++... g++
checking whether the C++ compiler works... yes
checking for C++ compiler default output file name... a.exe
checking for suffix of executables... .exe
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking for style of include used by make... none
checking dependency style of g++... none
checking for ftn... no
checking for ifort... no
checking for gfortran... gfortran
checking whether we are using the GNU Fortran compiler... yes
checking whether gfortran accepts -g... yes
checking for ranlib... ranlib
checking for gcc... gcc
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking whether gcc understands -c and -o together... yes
checking dependency style of gcc... none
checking for ar... ar
checking the archiver (ar) interface... ar
checking for OpenMP flag of C++ compiler... unknown
configure: error: don't know how to enable OpenMP for C++
Compiling 3d
build.sh: line 46: make: command not found
cp: cannot stat 'build/3d/fmm': No such file or directory

Done!

Compile Summary:
julia version 1.10.5
CxxWrap v0.15.0 Info Packages marked with ⌃ have new versions available and may be upgradable. nothing

My problem is where it says it doesn't know how to enable OpenMP for C++.

[EdoAlvarezR]

Hi! It is a hot mess to compile things natively on Windows, so instead we encourage users to use WSL in Windows. Follow the instructions in the first blue box at the top of the installation instructions in the docs.