add local Windows build instructions

windows_manual_build.txt

@@ -0,0 +1,65 @@
+# install MinGW (here installed in G:\msys64)
+
+# install other dependencies
+pacman --noconfirm -Syu
+pacman --noconfirm -S msys/git
+pacman --noconfirm -S mingw64/mingw-w64-x86_64-gcc
+pacman --noconfirm -S mingw64/mingw-w64-x86_64-gcc-fortran
+pacman --noconfirm -S mingw64/mingw-w64-x86_64-cmake
+pacman --noconfirm -S mingw64/mingw-w64-x86_64-doxygen
+pacman --noconfirm -S msys/make
+pacman --noconfirm -S mingw-w64-x86_64-pkg-config
+pacman --noconfirm -S mingw-w64-x86_64-hdf5
+pacman --noconfirm -S mingw-w64-x86_64-libzip
+pacman --noconfirm -S mingw-w64-x86_64-netcdf
+
+# checkout and build in g:\workspace
+mkdir g:\workspace
+cd g:\workspace
+git clone https://github.com/virtualcell/vcell-solvers.git
+cd vcell-solvers
+mkdir build
+mkdir build/bin
+cd build
+
+# the following needs to run in powershell
+
+$Env:Path = "G:\msys64\mingw64\bin" + ";" + "G:\msys64\usr\bin" + ";" + $Env:Path
+Write-Host "calling cmake in " + $pwd
+
+# NFsim only
+
+cmake -G "Unix Makefiles" `
+    -DCMAKE_BUILD_TYPE="Release" `
+    -DOPTION_TARGET_MESSAGING=OFF `
+    -DOPTION_TARGET_PARALLEL=OFF `
+    -DOPTION_TARGET_CHOMBO2D_SOLVER=OFF `
+    -DOPTION_TARGET_CHOMBO3D_SOLVER=OFF `
+    -DOPTION_TARGET_SMOLDYN_SOLVER=OFF `
+    -DOPTION_TARGET_FV_SOLVER=OFF `
+    -DOPTION_TARGET_STOCHASTIC_SOLVER=OFF `
+    -DOPTION_TARGET_NFSIM_SOLVER=ON `
+    -DOPTION_TARGET_MOVINGBOUNDARY_SOLVER=OFF `
+    -DOPTION_TARGET_SUNDIALS_SOLVER=OFF `
+    -DOPTION_TARGET_HY3S_SOLVERS=OFF `
+     ..
+
+# All local windows solvers
+
+cmake -G "Unix Makefiles" `
+    -DCMAKE_BUILD_TYPE="Release" `
+    -DOPTION_TARGET_MESSAGING=OFF `
+    -DOPTION_TARGET_PARALLEL=OFF `
+    -DOPTION_TARGET_CHOMBO2D_SOLVER=OFF `
+    -DOPTION_TARGET_CHOMBO3D_SOLVER=OFF `
+    -DOPTION_TARGET_SMOLDYN_SOLVER=ON `
+    -DOPTION_TARGET_FV_SOLVER=ON `
+    -DOPTION_TARGET_STOCHASTIC_SOLVER=ON `
+    -DOPTION_TARGET_NFSIM_SOLVER=ON `
+    -DOPTION_TARGET_MOVINGBOUNDARY_SOLVER=OFF `
+    -DOPTION_TARGET_SUNDIALS_SOLVER=ON `
+    -DOPTION_TARGET_HY3S_SOLVERS=OFF `
+     ..
+
+# run make in build directory
+make