CMake.qch: Don't include the version in the file name

Fixes: #19374

Help/release/dev/cmake-qch-no-version-in-filename.rst

@@ -0,0 +1,8 @@
+cmake-qch-no-version-in-filename
+--------------------------------
+
+* The Qt Compressed Help file is now named ``CMake.qch``, which no longer
+  contains the release version in the file name.  When CMake is upgraded
+  in-place, the name and location of this file will remain constant.
+  Tools such as IDEs, help viewers, etc. should now be able to refer to this
+  file at a fixed location that remains valid across CMake upgrades.

Utilities/Sphinx/CMakeLists.txt

@@ -105,7 +105,6 @@ if(SPHINX_QTHELP)
     # Workaround sphinx configurability:
     # https://bitbucket.org/birkenfeld/sphinx/issue/1448/make-qthelp-more-configurable
     COMMAND ${CMAKE_COMMAND} "-DQTHELP_DIR=${CMAKE_CURRENT_BINARY_DIR}/qthelp/"
-      "-DCMake_VERSION=${CMake_VERSION_MAJOR}${CMake_VERSION_MINOR}${CMake_VERSION_PATCH}"
       -P "${CMAKE_CURRENT_SOURCE_DIR}/fixup_qthelp_names.cmake"
 
     # Create proper identifiers. Workaround for
@@ -216,7 +215,7 @@ endif()
 
 if(SPHINX_QTHELP)
   CMake_OPTIONAL_COMPONENT(sphinx-qthelp)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/qthelp/CMake-${CMake_VERSION_MAJOR}${CMake_VERSION_MINOR}${CMake_VERSION_PATCH}.qch
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/qthelp/CMake.qch
           DESTINATION ${CMAKE_DOC_DIR} ${COMPONENT}
           )
 endif()

Utilities/Sphinx/conf.py.in

@@ -82,4 +82,4 @@ html_favicon = '@conf_path@/static/cmake-favicon.ico'
 # Not supported yet by sphinx:
 # https://bitbucket.org/birkenfeld/sphinx/issue/1448/make-qthelp-more-configurable
 # qthelp_namespace = "org.cmake"
-# qthelp_qch_name = "CMake-300.qch"
+# qthelp_qch_name = "CMake.qch"

Utilities/Sphinx/fixup_qthelp_names.cmake

@@ -10,15 +10,6 @@ string(REPLACE
   QHCP_CONTENT "${QHCP_CONTENT}"
 )
 
-string(REPLACE
-  "<output>CMake.qch" "<output>CMake-${CMake_VERSION}.qch"
-  QHCP_CONTENT "${QHCP_CONTENT}"
-)
-string(REPLACE
-  "<file>CMake.qch" "<file>CMake-${CMake_VERSION}.qch"
-  QHCP_CONTENT "${QHCP_CONTENT}"
-)
-
 file(WRITE "${QTHELP_DIR}/CMake.qhcp" "${QHCP_CONTENT}")