Fixed windows CI

.github/workflows/build_all.yml

@@ -38,6 +38,9 @@ jobs:
         - name: Download codec2
           run: git clone https://github.com/drowe67/codec2
 
+        - name: Prepare MinGW
+          run: C:/msys64/msys2_shell.cmd -defterm -here -no-start -mingw64 -c "pacman --noconfirm -S --needed base-devel mingw-w64-x86_64-toolchain mingw-w64-x86_64-cmake mingw-w64-x86_64-ninja"
+
         - name: Prepare build for codec2
           run: cd codec2 ; mkdir build ; cd build ; C:/msys64/msys2_shell.cmd -defterm -here -no-start -mingw64 -c "cmake .. -DCMAKE_GNUtoMS=ON -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_FLAGS=-static-libgcc"