Reinstate doc builds.

They are needed for inclusion in install packages.

Author: MarkCallow

.github/workflows/windows.yml

@@ -53,7 +53,7 @@ jobs:
         check_mkvk: [ NO ]
         options: [
           {config: 'Debug,Release',
-           doc: OFF, jni: ON, loadtests: OpenGL+Vulkan, py: ON, tests: ON, tools: ON, tools_cts: ON,
+           doc: ON, jni: ON, loadtests: OpenGL+Vulkan, py: ON, tests: ON, tools: ON, tools_cts: ON,
            package: YES,
            sse: ON, opencl: OFF},
           {config: Release,
@@ -86,7 +86,7 @@ jobs:
             arch: arm64
             options: {
               config: 'Debug,Release',
-              doc: OFF, jni: ON, loadtests: OpenGL+Vulkan, py: OFF, tests: ON, tools: ON, tools_cts: ON,
+              doc: ON, jni: ON, loadtests: OpenGL+Vulkan, py: OFF, tests: ON, tools: ON, tools_cts: ON,
               package: YES
             }
     runs-on: ${{ matrix.os }}

.travis.yml

@@ -52,10 +52,10 @@ env:
     # of Python for it to correctly build the Python extensions (the CI
     # runs on x86_64)
     - CONFIGURATION=Debug,Release PLATFORM=macOS ARCHS=x86_64
-      FEATURE_DOC=OFF FEATURE_JNI=ON FEATURE_PY=ON FEATURE_LOADTESTS=OpenGL+Vulkan FEATURE_TOOLS=ON
+      FEATURE_DOC=ON FEATURE_JNI=ON FEATURE_PY=ON FEATURE_LOADTESTS=OpenGL+Vulkan FEATURE_TOOLS=ON
       FEATURE_TOOLS_CTS=ON SUPPORT_SSE=ON SUPPORT_OPENCL=OFF DEPLOY_DOCS=NO PACKAGE=YES
     - CONFIGURATION=Release PLATFORM=macOS ARCHS=arm64
-      FEATURE_DOC=OFF FEATURE_JNI=ON FEATURE_PY=OFF FEATURE_LOADTESTS=OpenGL+Vulkan FEATURE_TESTS=OFF
+      FEATURE_DOC=ON FEATURE_JNI=ON FEATURE_PY=OFF FEATURE_LOADTESTS=OpenGL+Vulkan FEATURE_TESTS=OFF
       FEATURE_TOOLS=ON FEATURE_TOOLS_CTS=OFF SUPPORT_SSE=ON SUPPORT_OPENCL=OFF PACKAGE=YES
 
     - CONFIGURATION=Release PLATFORM=macOS ARCHS=x86_64
@@ -113,7 +113,7 @@ jobs:
         - VULKAN_SDK_VER: "1.3.290"
         - CMAKE_GEN: Ninja
         - CONFIGURATION=Release
-          FEATURE_DOC=OFF FEATURE_JNI=ON FEATURE_PY=ON FEATURE_LOADTESTS=OpenGL+Vulkan FEATURE_TOOLS=ON FEATURE_TOOLS_CTS=ON
+          FEATURE_DOC=ON FEATURE_JNI=ON FEATURE_PY=ON FEATURE_LOADTESTS=OpenGL+Vulkan FEATURE_TOOLS=ON FEATURE_TOOLS_CTS=ON
           SUPPORT_SSE=ON SUPPORT_OPENCL=OFF WERROR=ON PACKAGE=YES
     - os: linux
       arch: arm64
@@ -133,7 +133,7 @@ jobs:
         - VULKAN_SDK_VER: "1.3.290"
         - CMAKE_GEN: Ninja
         - CONFIGURATION=Release
-          FEATURE_DOC=OFF FEATURE_JNI=ON FEATURE_PY=ON FEATURE_LOADTESTS=OpenGL
+          FEATURE_DOC=ON FEATURE_JNI=ON FEATURE_PY=ON FEATURE_LOADTESTS=OpenGL
           FEATURE_TOOLS=ON FEATURE_TOOLS_CTS=ON
           SUPPORT_SSE=OFF SUPPORT_OPENCL=OFF WERROR=ON PACKAGE=YES
     - os: linux