diff options
| -rw-r--r-- | cmake/QtPublicWalkLibsHelpers.cmake | 82 |
1 files changed, 69 insertions, 13 deletions
diff --git a/cmake/QtPublicWalkLibsHelpers.cmake b/cmake/QtPublicWalkLibsHelpers.cmake index 674a9da7a7..038d5d0625 100644 --- a/cmake/QtPublicWalkLibsHelpers.cmake +++ b/cmake/QtPublicWalkLibsHelpers.cmake @@ -56,15 +56,25 @@ function(__qt_internal_memoize_values_in_dict target dict_name dict_key values) endfunction() -# Walks a target's link libraries recursively, and performs some actions (poor man's polypmorphism) +# Walks a target's public link libraries recursively, and performs some actions (poor man's +# polypmorphism) +# +# Walks INTERFACE_LINK_LIBRARIES for all target types, as well as LINK_LIBRARIES for static +# library targets. +# +# out_var: the name of the variable where the result will be assigned. The result is a list of +# libraries, mostly in generator expression form. +# rcc_objects_out_var: the name of the variable where the collected rcc object files will be +# assigned (for the initial target and its dependencies) +# dict_name: used for caching the results, and preventing the same target from being processed +# twice +# operation: a string to tell the function what additional behaviors to execute. +# 'collect_libs' (default) operation is to collect linker file paths and flags. +# Used for prl file generation. +# 'promote_global' promotes walked imported targets to global scope. +# 'collect_targets' collects all target names (discards framework or link flags) +# # -# out_var is the name of the variable where the result will be assigned. The result is a list of -# libraries, mostly in generator expression form. -# rcc_objects_out_var is the name of the variable where the collected rcc object files will be -# assigned (for the initial target and its dependencies) -# dict_name is used for caching the results, and preventing the same target from being processed -# twice -# operation is a string to tell the function what additional behaviors to execute. function(__qt_internal_walk_libs target out_var rcc_objects_out_var dict_name operation) set(collected ${ARGN}) @@ -179,7 +189,12 @@ function(__qt_internal_walk_libs __qt_internal_merge_libs(rcc_objects ${lib_rcc_objects_${target}}) endif() elseif(NOT lib_target_type STREQUAL "OBJECT_LIBRARY") - __qt_internal_merge_libs(libs "$<TARGET_LINKER_FILE:${lib_target}>") + + if(operation STREQUAL "collect_targets") + __qt_internal_merge_libs(libs ${lib_target}) + else() + __qt_internal_merge_libs(libs "$<TARGET_LINKER_FILE:${lib_target}>") + endif() get_target_property(target_rcc_objects "${lib_target}" _qt_rcc_objects) if(target_rcc_objects) @@ -220,11 +235,13 @@ function(__qt_internal_walk_libs message(FATAL_ERROR "The ${CMAKE_MATCH_1} target is mentioned as a dependency for \ ${target}, but not declared.") else() - set(final_lib_name_to_merge "${lib_target}") - if(lib_target MATCHES "/([^/]+).framework$") - set(final_lib_name_to_merge "-framework ${CMAKE_MATCH_1}") + if(NOT operation STREQUAL "collect_targets") + set(final_lib_name_to_merge "${lib_target}") + if(lib_target MATCHES "/([^/]+).framework$") + set(final_lib_name_to_merge "-framework ${CMAKE_MATCH_1}") + endif() + __qt_internal_merge_libs(libs "${final_lib_name_to_merge}") endif() - __qt_internal_merge_libs(libs "${final_lib_name_to_merge}") endif() endforeach() __qt_internal_memoize_values_in_dict("${target}" "${dict_name}" "libs" "${libs}") @@ -235,3 +252,42 @@ ${target}, but not declared.") set(${out_var} ${libs} PARENT_SCOPE) set(${rcc_objects_out_var} ${rcc_objects} PARENT_SCOPE) endfunction() + + +# Given ${target}, collect all its private dependencies that are CMake targets. +# +# Discards non-CMake-target dependencies like linker flags or file paths. +# Does nothing when given an interface library. +# +# To be used to extract the full list of target dependencies of a library or executable. +function(__qt_internal_collect_all_target_dependencies target out_var) + set(dep_targets "") + + get_target_property(target_type ${target} TYPE) + + if(NOT target_type STREQUAL "INTERFACE_LIBRARY") + get_target_property(link_libs ${target} LINK_LIBRARIES) + if(link_libs) + foreach(lib ${link_libs}) + if(TARGET "${lib}") + list(APPEND dep_targets "${lib}") + + __qt_internal_walk_libs( + "${lib}" + lib_walked_targets + _discarded_out_var + "qt_private_link_library_targets" + "collect_targets") + + if(lib_walked_targets) + list(APPEND dep_targets ${lib_walked_targets}) + endif() + endif() + endforeach() + endif() + endif() + + list(REMOVE_DUPLICATES dep_targets) + + set(${out_var} "${dep_targets}" PARENT_SCOPE) +endfunction() |