diff --git a/.github/workflows/ccpp.yml b/.github/workflows/ccpp.yml
index a673de68..997dd9d1 100644
--- a/.github/workflows/ccpp.yml
+++ b/.github/workflows/ccpp.yml
@@ -104,6 +104,26 @@ jobs:
         path: ${{ github.workspace }}/uselib*
 
 
+  linux-build-no-opencv-cpp-mode:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+
+   # Install latest CMake.
+    - uses: lukka/get-cmake@latest
+
+    - name: 'Build with CMake and Ninja'
+      uses: lukka/run-cmake@v2
+      with:
+        cmakeListsOrSettingsJson: CMakeListsTxtAdvanced
+        cmakeListsTxtPath: '${{ github.workspace }}/CMakeLists.txt'
+        useVcpkgToolchainFile: true
+        buildDirectory: '${{ runner.workspace }}/buildDirectory'
+        cmakeAppendedArgs: "-DCMAKE_BUILD_TYPE=Release -DBUILD_AS_CPP:BOOL=TRUE"
+        cmakeBuildType: 'Release'
+        buildWithCMakeArgs: '--target install'
+
+
   macos-build-vcpkg:
     runs-on: macOS-latest
     steps:
@@ -201,6 +221,26 @@ jobs:
         path: ${{ github.workspace }}/uselib*
 
 
+  macos-build-no-opencv-no-omp-cpp-mode:
+    runs-on: macOS-latest
+    steps:
+    - uses: actions/checkout@v2
+
+   # Install latest CMake.
+    - uses: lukka/get-cmake@latest
+
+    - name: 'Build with CMake and Ninja'
+      uses: lukka/run-cmake@v2
+      with:
+        cmakeListsOrSettingsJson: CMakeListsTxtAdvanced
+        cmakeListsTxtPath: '${{ github.workspace }}/CMakeLists.txt'
+        useVcpkgToolchainFile: true
+        buildDirectory: '${{ runner.workspace }}/buildDirectory'
+        cmakeAppendedArgs: "-DCMAKE_BUILD_TYPE=Release -DBUILD_AS_CPP:BOOL=TRUE"
+        cmakeBuildType: 'Release'
+        buildWithCMakeArgs: '--target install'
+
+
   windows-build-vcpkg:
     runs-on: windows-latest
     steps:
@@ -247,7 +287,71 @@ jobs:
       with:
         name: darknet-vcpkg-${{ runner.os }}
         path: ${{ github.workspace }}/*dark*
+    - uses: actions/upload-artifact@v2
+      with:
+        name: darknet-vcpkg-${{ runner.os }}
+        path: ${{ runner.workspace }}/buildDirectory/*.dll
     - uses: actions/upload-artifact@v2
       with:
         name: darknet-vcpkg-${{ runner.os }}
         path: ${{ github.workspace }}/uselib*
+
+
+  windows-build-integrated-libs:
+    runs-on: windows-latest
+    steps:
+    - uses: actions/checkout@v2
+
+   # Install latest CMake.
+    - uses: lukka/get-cmake@latest
+
+    - name: 'Build with CMake and Ninja'
+      uses: lukka/run-cmake@v2
+      with:
+        cmakeListsOrSettingsJson: CMakeListsTxtAdvanced
+        cmakeListsTxtPath: '${{ github.workspace }}/CMakeLists.txt'
+        useVcpkgToolchainFile: true
+        buildDirectory: '${{ runner.workspace }}/buildDirectory'
+        cmakeAppendedArgs: "-DCMAKE_BUILD_TYPE=Release"
+        cmakeBuildType: 'Release'
+        buildWithCMakeArgs: '--target install'
+
+    - uses: actions/upload-artifact@v2
+      with:
+        name: darknet-vcpkg-${{ runner.os }}
+        path: cfg
+    - uses: actions/upload-artifact@v2
+      with:
+        name: darknet-vcpkg-${{ runner.os }}
+        path: data
+    - uses: actions/upload-artifact@v2
+      with:
+        name: darknet-vcpkg-${{ runner.os }}
+        path: ${{ github.workspace }}/*dark*
+    - uses: actions/upload-artifact@v2
+      with:
+        name: darknet-vcpkg-${{ runner.os }}
+        path: ${{ github.workspace }}/3rdparty/pthreads/bin/*.dll
+    - uses: actions/upload-artifact@v2
+      with:
+        name: darknet-vcpkg-${{ runner.os }}
+        path: ${{ github.workspace }}/uselib*
+
+  windows-build-integrated-libs-cpp-mode:
+    runs-on: windows-latest
+    steps:
+    - uses: actions/checkout@v2
+
+   # Install latest CMake.
+    - uses: lukka/get-cmake@latest
+
+    - name: 'Build with CMake and Ninja'
+      uses: lukka/run-cmake@v2
+      with:
+        cmakeListsOrSettingsJson: CMakeListsTxtAdvanced
+        cmakeListsTxtPath: '${{ github.workspace }}/CMakeLists.txt'
+        useVcpkgToolchainFile: true
+        buildDirectory: '${{ runner.workspace }}/buildDirectory'
+        cmakeAppendedArgs: "-DCMAKE_BUILD_TYPE=Release -DBUILD_AS_CPP:BOOL=TRUE"
+        cmakeBuildType: 'Release'
+        buildWithCMakeArgs: '--target install'
diff --git a/appveyor.yml b/appveyor.yml
index 9c6f279f..68aea5d5 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -10,20 +10,20 @@ environment:
       COMPILER: cygwin
       CYGWIN_NOWINPATH: yes
       CYGSH: C:\cygwin64\bin\bash -c
-    - platform: Win64
-      USE_CUDA: yes
-      INSTALL_CUDA_VERSION: 10.0
-      COMPILER: vs
-      configuration: Release
-      VCPKG_ROOT: C:\Tools\vcpkg
-      VCPKG_DEFAULT_TRIPLET: x64-windows
-    - platform: Win64
-      USE_CUDA: yes
-      INSTALL_CUDA_VERSION: 10.1
-      COMPILER: vs
-      configuration: Release
-      VCPKG_ROOT: C:\Tools\vcpkg
-      VCPKG_DEFAULT_TRIPLET: x64-windows
+    #- platform: Win64
+    #  USE_CUDA: yes
+    #  INSTALL_CUDA_VERSION: 10.0
+    #  COMPILER: vs
+    #  configuration: Release
+    #  VCPKG_ROOT: C:\Tools\vcpkg
+    #  VCPKG_DEFAULT_TRIPLET: x64-windows
+    #- platform: Win64
+    #  USE_CUDA: yes
+    #  INSTALL_CUDA_VERSION: 10.1
+    #  COMPILER: vs
+    #  configuration: Release
+    #  VCPKG_ROOT: C:\Tools\vcpkg
+    #  VCPKG_DEFAULT_TRIPLET: x64-windows
     #- platform: Win64
     #  USE_CUDA: yes
     #  INSTALL_CUDA_VERSION: 10.2
@@ -31,23 +31,23 @@ environment:
     #  configuration: Release
     #  VCPKG_ROOT: C:\Tools\vcpkg
     #  VCPKG_DEFAULT_TRIPLET: x64-windows
-    - platform: Win64
-      USE_CUDA: no
-      COMPILER: vs
-      configuration: Release
-      VCPKG_ROOT: C:\Tools\vcpkg
-      VCPKG_DEFAULT_TRIPLET: x64-windows
-    - platform: Win64
-      USE_CUDA: no
-      COMPILER: vs
-      configuration: Release
-      USE_INTEGRATED_LIBS: yes
-    - platform: Win64
-      USE_CUDA: no
-      COMPILER: vs
-      configuration: Release
-      USE_INTEGRATED_LIBS: yes
-      FORCE_CPP: yes
+    #- platform: Win64
+    #  USE_CUDA: no
+    #  COMPILER: vs
+    #  configuration: Release
+    #  VCPKG_ROOT: C:\Tools\vcpkg
+    #  VCPKG_DEFAULT_TRIPLET: x64-windows
+    #- platform: Win64
+    #  USE_CUDA: no
+    #  COMPILER: vs
+    #  configuration: Release
+    #  USE_INTEGRATED_LIBS: yes
+    #- platform: Win64
+    #  USE_CUDA: no
+    #  COMPILER: vs
+    #  configuration: Release
+    #  USE_INTEGRATED_LIBS: yes
+    #  FORCE_CPP: yes
 
 install:
   - if [%COMPILER%]==[vs] cinst cmake ninja