All following steps are to be done in a MinGW64 shell (notin a MSYS shell, which also getsinstalled by the MSYS2 installer)
pacman -S mingw-w64-x86_64-gcc mingw-w64-x86_64-cmake mingw-w64-x86_64-make
pacman -S mingw-w64-x86_64-glm mingw-w64-x86_64-libsigc++ mingw-w64-x86_64-gtkmm3 mingw-w64-x86_64-yaml-cpp mingw-w64-x86_64-glew
pacman -S mingw-w64-x86_64-glfw

cd ~
rm -rf mingw-w64-x86_64-vulkan-*.zst
wget https://repo.msys2.org/mingw/mingw64/mingw-w64-x86_64-vulkan-headers-1.3.268-1-any.pkg.tar.zst
wget https://repo.msys2.org/mingw/mingw64/mingw-w64-x86_64-vulkan-loader-1.3.268-1-any.pkg.tar.zst
wget https://repo.msys2.org/mingw/mingw64/mingw-w64-x86_64-vulkan-validation-layers-1.3.268-1-any.pkg.tar.zst
pacman -U mingw-w64-x86_64-vulkan-loader-1.3.268-1-any.pkg.tar.zst mingw-w64-x86_64-vulkan-headers-1.3.268-1-any.pkg.tar.zst mingw-w64-x86_64-vulkan-validation-layers-1.3.268-1-any.pkg.tar.zst
rm -rf mingw-w64-x86_64-vulkan-*.zst

https://repo.msys2.org/mingw/mingw64/

git config submodule.recurse true

cd ~
git clone https://github.com/anthonix/ffts.git
cd ~
cd ffts
mkdir build
cd build
cmake -G"MinGW Makefiles" -DCMAKE_INSTALL_PREFIX=$MSYSTEM_PREFIX -DENABLE_SHARED=ON -DCMAKE_BUILD_TYPE=Release ..
mingw32-make -j
mingw32-make install

cd ~
git clone https://github.com/KhronosGroup/glslang.git
cd glslang
mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Release ..
sudo make -j install

###############################
# VulkanSDK-1.3.268.0 mingw64 #
###############################
https://vulkan.lunarg.com/sdk/home
#------------------------------------------------------------------------------------------------------------------------------------------
# Windows mingw64 glslang build (as it is not fully integrated in VulkanSDK-1.3.268.0 for Windows and built with Visual Studio 2019)
#------------------------------------------------------------------------------------------------------------------------------------------
cd ~
git clone https://github.com/KhronosGroup/glslang.git
cd glslang
git checkout tags/vulkan-sdk-1.3.268.0
git clone https://github.com/google/googletest.git External/googletest
cd External/googletest
git checkout 0c400f67fcf305869c5fb113dd296eca266c9725
cd ../..
./update_glslang_sources.py

SOURCE_DIR=~/glslang
BUILD_DIR=$SOURCE_DIR/build
mkdir -p $BUILD_DIR
cd $BUILD_DIR
cmake -DCMAKE_BUILD_TYPE=Release -G"Ninja" $SOURCE_DIR -DCMAKE_INSTALL_PREFIX="$(pwd)/install"

cmake --build . --config Release --target install

################################################################################
# For Release build Windows official way msys2/PKGBUILD
https://github.com/glscopeclient/scopehal-docs/blob/master/section-gettingstarted.tex#L260
############################################################################################
cd ~
git clone --recurse-submodules https://github.com/glscopeclient/scopehal-apps.git

cd ~
cd scopehal-apps
git pull --recurse-submodules

cd ~/scopehal-apps/msys2
export VK_SDK_PATH=/c/VulkanSDK/1.3.268.0
export PATH=$VK_SDK_PATH/Bin:$PATH
export VULKAN_SDK=$VK_SDK_PATH
export GLSLANG_BUILD_PATH=~/glslang/build/install
CXXFLAGS+=" -Wno-format"
MINGW_ARCH=mingw64 makepkg-mingw --noconfirm --noprogressbar -sCLf

#########################################################
# For Release build Windows alternative way ninja
#########################################################
cd ~
git clone --recurse-submodules https://github.com/glscopeclient/scopehal-apps.git

cd ~
cd scopehal-apps
git pull --recurse-submodules
mkdir build
cd build

export VK_SDK_PATH=/c/VulkanSDK/1.3.268.0
export PATH=/c/VulkanSDK/1.3.268.0/Bin:$PATH
export VULKAN_SDK=$VK_SDK_PATH
export GLSLANG_BUILD_PATH=~/glslang/build/install
CXXFLAGS+=" -Wno-format"
cmake -G"Ninja" -DBUILD_TESTING=OFF -DCMAKE_BUILD_TYPE=Release ..

# Build MSI & Portable Zip
cmake -G"Ninja" -DBUILD_TESTING=OFF -DCMAKE_BUILD_TYPE=Release -DWIXPATH="/c/Program Files (x86)/WiX Toolset v3.11/bin" ..

cmake.exe --build ./

##############
# build debug
##############
cd ~
cd scopehal-apps
git pull --recurse-submodules
mkdir build_debug
cd build_debug
export VK_SDK_PATH=/c/VulkanSDK/1.3.268.0
export PATH=/c/VulkanSDK/1.3.268.0/Bin:$PATH
export VULKAN_SDK=$VK_SDK_PATH
export GLSLANG_BUILD_PATH=~/glslang/build/install
CXXFLAGS+=" -Wno-format"
cmake -G"Ninja" -DBUILD_TESTING=OFF -DCMAKE_BUILD_TYPE=Debug ..

# Build MSI & Portable Zip
cmake -G"Ninja" -DBUILD_TESTING=OFF -DCMAKE_BUILD_TYPE=Debug -DWIXPATH="/c/Program Files (x86)/WiX Toolset v3.11/bin" ..

cmake.exe --build ./

#########################################################
# For Release build Windows alternative way mingw32-make
#########################################################
cd ~
git clone --recurse-submodules https://github.com/glscopeclient/scopehal-apps.git

cd ~
cd scopehal-apps
git pull --recurse-submodules
mkdir build
cd build

export VK_SDK_PATH=/c/VulkanSDK/1.3.268.0
export PATH=/c/VulkanSDK/1.3.268.0/Bin:$PATH
export VULKAN_SDK=$VK_SDK_PATH
export GLSLANG_BUILD_PATH=~/glslang/build/install

cmake -G"MinGW Makefiles" -DBUILD_TESTING=OFF -DCMAKE_BUILD_TYPE=Release ..
mingw32-make -j

# strip exe/dll -DCMAKE_CXX_FLAGS="-s" => does not work after build to be tested with a clean build
cmake -G"MinGW Makefiles" -DBUILD_TESTING=OFF -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="-s" ..
mingw32-make -j

#####################################
# For Dev/Debug build Windows
#####################################
cd ~
git --recursive clone https://github.com/glscopeclient/scopehal-apps.git

cd ~
cd scopehal-apps
mkdir build
cd build
cmake -G"MinGW Makefiles" -DBUILD_TESTING=OFF -DCMAKE_BUILD_TYPE=Debug ..
mingw32-make -j8

cd ~
BUILD_NAME=glscopeclient_build_debug
mkdir $BUILD_NAME
cd ~/scopehal-apps/build_debug
cp C:/msys64/mingw64/bin/libglib-2.0-0.dll ~/$BUILD_NAME/
cp C:/msys64/mingw64/bin/libglibmm-2.4-1.dll ~/$BUILD_NAME/
cp C:/msys64/mingw64/bin/libgtkmm-3.0-1.dll ~/$BUILD_NAME/
cp C:/msys64/mingw64/bin/libatkmm-1.6-1.dll ~/$BUILD_NAME/
cp C:/msys64/mingw64/bin/libgdkmm-3.0-1.dll ~/$BUILD_NAME/
cp C:/msys64/mingw64/bin/libcairomm-1.0-1.dll ~/$BUILD_NAME/
cp C:/msys64/mingw64/bin/libgiomm-2.4-1.dll ~/$BUILD_NAME/
cp C:/msys64/mingw64/bin/libgcc_s_seh-1.dll ~/$BUILD_NAME/
cp C:/msys64/mingw64/bin/glfw3.dll ~/$BUILD_NAME/
cp C:/msys64/mingw64/bin/glew32.dll ~/$BUILD_NAME/
cp C:/msys64/mingw64/bin/SPIRV.dll ~/$BUILD_NAME/
cp C:/msys64/mingw64/bin/libstdc++-6.dll ~/$BUILD_NAME/
cp C:/msys64/mingw64/bin/libOpenCL.dll ~/$BUILD_NAME/
cp ./src/glscopeclient/glscopeclient.exe ~/$BUILD_NAME/
cp ./src/ngscopeclient/ngscopeclient.exe ~/$BUILD_NAME/
cp -r ../src/glscopeclient/gradients ~/$BUILD_NAME/
cp -r ../src/glscopeclient/icons ~/$BUILD_NAME/
cp -r ../src/glscopeclient/masks ~/$BUILD_NAME/
cp -r ../src/glscopeclient/shaders ~/$BUILD_NAME/
cp -r ./lib/scopeprotocols/shaders ~/$BUILD_NAME
cp -r ../src/glscopeclient/styles ~/$BUILD_NAME/
cp ./lib/graphwidget/libgraphwidget.dll ~/$BUILD_NAME/
cp ./lib/log/liblog.dll ~/$BUILD_NAME/
cp ./lib/scopeexports/libscopeexports.dll ~/$BUILD_NAME/
cp ./lib/scopehal/libscopehal.dll ~/$BUILD_NAME/
cp ./lib/scopeprotocols/libscopeprotocols.dll ~/$BUILD_NAME/

How to Debug scopeSession 64b66b
Debug workaround with gdb:
cd ~
cd glscopeclient_build_debug
export OMP_WAIT_POLICY=PASSIVE
winpty gdb ./glscopeclient.exe
set pagination off
set args 64b66b.scopesession
catch throw
catch catch
catch fork
catch vfork
set follow-fork-mode child
break EyePattern.cpp:50
break EyePattern.cpp:61
run
Ctrl-C

How to Debug scopeSession SPI
Debug workaround with gdb:
cd ~
cd glscopeclient_build_debug
export OMP_WAIT_POLICY=PASSIVE
winpty gdb ./glscopeclient.exe
set pagination off
set args --debug spi-compressed.scopesession
break abort
run
Ctrl-C

How to Debug Rigol MSO5000 Ethernet
Debug workaround with gdb:
cd ~
cd glscopeclient_build_debug
export OMP_WAIT_POLICY=PASSIVE
winpty gdb ./glscopeclient.exe
set args --debug RigolMSO5k:rigol:lan:192.168.0.10:5555
run
Ctrl-C

In case of crash SIGSEGV
cd ~
cd glscopeclient_build_debug
export OMP_WAIT_POLICY=PASSIVE
winpty gdb ./glscopeclient.exe
set pagination off
set args --debug RigolMSO5k:rigol:lan:192.168.0.10:5555
catch fork
catch vfork
set follow-fork-mode child
break abort
run
Ctrl-C

where

glscopeclient.exe myscope:demo:null:null --debug --trace PipelineCacheManager

run glscopeclient --debug myscope:demo:null:null
<azonenberg> or just launch with no args and select the "demo" driver and null transport

How to Debug Demo
Debug workaround with gdb:
cd ~
cd glscopeclient_build_debug
export OMP_WAIT_POLICY=PASSIVE
winpty gdb ./glscopeclient.exe
winpty gdb ./ngscopeclient.exe
set args --debug myscope:demo:null:null

export OMP_WAIT_POLICY=PASSIVE
gdb ./ngscopeclient.exe

set args --debug --stdout-only
set pagination off
break abort
catch throw
catch catch
set follow-fork-mode child
run
Ctrl-C

b TestWaveformSource.cpp:280


frame 1
print *p
(gdb) print *p
$1 = {offsets = 0x0, ws = 0x0, oe_ws = 0x0, eo_ws = 0x0, ee_ws = 0x0, is = 0x0, ws_is = 0x0, i0 = 0, i1 = 0, n_luts = 0, N = 131071,
  lastlut = 0x0, transform = 0x6a4c45ea <ffts_execute_1d_real>, transform_base = 0x0, transform_size = 0, constants = 0x0, plans = 0xea61b70,
  rank = 1, Ns = 0x0, Ms = 0x0, buf = 0x12e1f780, transpose_buf = 0x0, destroy = 0x6a4c453c <ffts_free_1d_real>, A = 0x12e9f7e0,
  B = 0x12f1f840, i2 = 0}

bt full
frame
where
thread apply all bt
info locals
info args
print varname
display/i $pc
display /3i $pc
print r14



layout asm
=> Crash gdb ??