Commit 97a9a356 authored by Robert Dailey's avatar Robert Dailey

FindDoxygen: Use a stable reference to the location of global resources

FindDoxygen generates some files based on the version of Doxygen whose
content will not vary across a project and are therefore a global
resource that can be shared by all calls to `find_package(Doxygen)` and
to `doxygen_add_docs`.  We currently use `${PROJECT_BINARY_DIR}` to
reference their location, but this is not stable because `project()`
calls in a subdirectory can change it.  Use `${CMAKE_BINARY_DIR}`
Reviewed-by: Craig Scott's avatarCraig Scott <>
Fixes: #17022
parent 594b0f80
......@@ -619,7 +619,7 @@ if(TARGET Doxygen::doxygen)
# If doxygen was found, use it to generate a minimal default Doxyfile.
# We will delete this file after we have finished using it below to
# generate the other files that doxygen_add_docs() will use.
set(_Doxygen_tpl "${PROJECT_BINARY_DIR}/CMakeDoxyfile.tpl")
set(_Doxygen_tpl "${CMAKE_BINARY_DIR}/CMakeDoxyfile.tpl")
COMMAND "${DOXYGEN_EXECUTABLE}" -s -g "${_Doxygen_tpl}"
......@@ -646,8 +646,8 @@ if(TARGET Doxygen::doxygen)
# content is only dependent on the version of Doxygen being used. Therefore
# we always put them at the top of the build tree so that they are in a
# predictable location.
set(_doxyfile_in "${PROJECT_BINARY_DIR}/")
set(_doxyfile_defaults "${PROJECT_BINARY_DIR}/CMakeDoxygenDefaults.cmake")
set(_doxyfile_in "${CMAKE_BINARY_DIR}/")
set(_doxyfile_defaults "${CMAKE_BINARY_DIR}/CMakeDoxygenDefaults.cmake")
file(WRITE "${_doxyfile_in}" ${_Doxygen_dne_header})
file(WRITE "${_doxyfile_defaults}" ${_Doxygen_dne_header})
......@@ -896,7 +896,7 @@ doxygen_add_docs() for target ${targetName}")
# Now bring in Doxgen's defaults for those things the project has not
# already set and we have not provided above
include("${PROJECT_BINARY_DIR}/CMakeDoxygenDefaults.cmake" OPTIONAL)
include("${CMAKE_BINARY_DIR}/CMakeDoxygenDefaults.cmake" OPTIONAL)
# Cleanup built HTMLs on "make clean"
# TODO Any other dirs?
......@@ -1025,7 +1025,7 @@ doxygen_add_docs() for target ${targetName}")
# Prepare doxygen configuration file
set(_doxyfile_template "${PROJECT_BINARY_DIR}/")
set(_doxyfile_template "${CMAKE_BINARY_DIR}/")
set(_target_doxyfile "${CMAKE_CURRENT_BINARY_DIR}/Doxyfile.${targetName}")
configure_file("${_doxyfile_template}" "${_target_doxyfile}")
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