Setting up CMake with gfortran in Windows to run CACTUS - windows

Question

My ultimate goal is to run CACTUS. It requires CMake, so I have downloaded both. I think CMake needs a compiler, so I downloaded MinGW (or gfortran or GNU, I'm not really sure the distinction).
Using the MinGW Installation Manager, I've installed mingw32-base, mingw32-gcc-fortran, and also all the MinGW libraries because at one point I thought it would help. I have navigated through
control panel>system>advanced system settings>advanced>environment
variables and in user variables I have added the variables CMake and FC with the values C:\ProgramFiles\CMake\bin and C:\MinGW\bin, respectively.
I also edited the path in system variables to include both of those as well as C:\MinGW\mingw32\bin. I've also downloaded and installed Microsoft Visual Studio 2019 because I read somewhere that it was necessary for gfortran to work, though I have not done anything directly with it so far. At this point, I open Windows command prompt (this is all in Windows 10), navigate to the build folder that I have created in the top CACTUS folder and type
cmake ../
It returns this:
-- Could NOT find BLAS (missing: BLAS_LIBRARIES)
-- LAPACK requires BLAS
-- A library with LAPACK API not found. Please specify library location.
-- Could NOT find OpenMP_Fortran (missing: OpenMP_Fortran_FLAGS OpenMP_Fortran_LIB_NAMES)
CMake Warning (dev) at C:/Program Files/CMake/share/cmake-3.17/Modules/FindPackageHandleStandardArgs.cmake:272 (message):
The package name passed to `find_package_handle_standard_args` (OpenMP)
does not match the name of the calling package (OPENMP). This can lead to
problems in calling code that expects `find_package` result variables
(e.g., `_FOUND`) to follow a certain pattern.
Call Stack (most recent call first):
C:/Program Files/CMake/share/cmake-3.17/Modules/FindOpenMP.cmake:579 (find_package_handle_standard_args)
CMakeLists.txt:30 (find_package)
This warning is for project developers. Use -Wno-dev to suppress it.
-- Could NOT find OpenMP (missing: OpenMP_Fortran_FOUND)
CMake Error at CMakeLists.txt:32 (message):
OPENMP option was set to true (default), but no OpenMP was found. Install
OpenMP, or try again with -DOPENMP=OFF. Exiting.
-- Configuring incomplete, errors occurred!
Starting at the top of that error, I did some googling and found these instructions starting at "Build Instructions to create LAPACK and LAPACKE 3.5.0 dlls for Windows with MinGW". I followed those instructions for Win32. After running C:/MinGW/bin/mingw32-make.exe from command prompt, it gets to 36% and errs with the following message:
c:/mingw/bin/../lib/gcc/mingw32/6.3.0/../../../../mingw32/bin/ld.exe: cannot find -lFALSE
collect2.exe: error: ld returned 1 exit status
SRC\CMakeFiles\lapack.dir\build.make:28574: recipe for target 'bin/liblapack.dll' failed
mingw32-make.exe[2]: *** [bin/liblapack.dll] Error 1
CMakeFiles\Makefile2:2077: recipe for target 'SRC/CMakeFiles/lapack.dir/all' failed
mingw32-make.exe[1]: *** [SRC/CMakeFiles/lapack.dir/all] Error 2
Makefile:181: recipe for target 'all' failed
mingw32-make.exe: *** [all] Error 2
I have also tried directions here and here and have either had no luck or, frankly, don't understand them. I am not a programmer. I have lived a life spoiled by GUIs and single install programs with everything included. I don't know what to try anymore. I don't really understand what's wrong or, honestly, why I've taken most of the steps I've taken except that someone in another help forum suggested them. I guarantee that I will have follow up questions to your answers, but please help.
EDIT
As requested below, here is the config file for lapack after cmake:
# Load the LAPACK package with which we were built.
set(LAPACK_DIR "C:/Users/x/Downloads/lapack/lapack-3.9.0/build")
find_package(LAPACK NO_MODULE)
# Load lapack targets from the build tree, including lapacke targets.
if(NOT TARGET lapacke)
include("C:/Users/x/Downloads/lapack/lapack-3.9.0/build/lapack-targets.cmake")
endif()
# Hint for project building against lapack
set(LAPACKE_Fortran_COMPILER_ID ${LAPACK_Fortran_COMPILER_ID})
# Report lapacke header search locations from build tree.
set(LAPACKE_INCLUDE_DIRS "C:/Users/x/Downloads/lapack/lapack-3.9.0/build/include")
# Report lapacke libraries.
set(LAPACKE_LIBRARIES lapacke ${LAPACK_LIBRARIES})
And, yes, I did choose to build the LAPACKE Library in CMake.