Remove ccov-libs target from LLVM-based coverage

The ccov-libs target no longer matters, as the preferred solution is to
provide objects to the executed targets instead, and the 'all' targets
would obtain shared libraries from the objects.list instead.

Author: StableCoder

code-coverage.cmake

@@ -161,13 +161,6 @@ if(CODE_COVERAGE AND NOT CODE_COVERAGE_ADDED)
     # Targets
     add_custom_target(ccov-clean)
 
-    # Used to get the shared object file list before doing the main all-
-    # processing
-    add_custom_target(
-      ccov-libs
-      COMMAND ;
-      COMMENT "libs ready for coverage report.")
-
   elseif(CMAKE_C_COMPILER_ID MATCHES "GNU" OR CMAKE_CXX_COMPILER_ID MATCHES
                                               "GNU")
     # Messages
@@ -315,35 +308,6 @@ function(target_code_coverage TARGET_NAME)
   # Targets
   get_target_property(target_type ${TARGET_NAME} TYPE)
 
-  # Add shared library to processing for 'all' targets
-  if(target_type STREQUAL "SHARED_LIBRARY" AND target_code_coverage_ALL)
-    if(CMAKE_C_COMPILER_ID MATCHES "(Apple)?[Cc]lang"
-       OR CMAKE_CXX_COMPILER_ID MATCHES "(Apple)?[Cc]lang")
-      add_custom_command(
-        OUTPUT
-          ${CMAKE_COVERAGE_DATA_DIRECTORY}/objects/${target_code_coverage_COVERAGE_TARGET_NAME}
-        COMMAND
-          ${CMAKE_COMMAND} -E echo "-object=$<TARGET_FILE:${TARGET_NAME}>" >
-          ${CMAKE_COVERAGE_DATA_DIRECTORY}/objects/${target_code_coverage_COVERAGE_TARGET_NAME}
-        DEPENDS ${TARGET_NAME})
-      add_custom_target(
-        ccov-run-${target_code_coverage_COVERAGE_TARGET_NAME}
-        DEPENDS
-          ${CMAKE_COVERAGE_DATA_DIRECTORY}/objects/${target_code_coverage_COVERAGE_TARGET_NAME}
-      )
-
-      if(NOT TARGET ccov-libs)
-        message(
-          FATAL_ERROR
-            "Calling target_code_coverage with 'ALL' must be after a call to 'add_code_coverage_all_targets'."
-        )
-      endif()
-
-      add_dependencies(ccov-libs
-                       ccov-run-${target_code_coverage_COVERAGE_TARGET_NAME})
-    endif()
-  endif()
-
   # For executables add targets to run and produce output
   if(target_type STREQUAL "EXECUTABLE")
     if(CMAKE_C_COMPILER_ID MATCHES "(Apple)?[Cc]lang"
@@ -398,7 +362,7 @@ function(target_code_coverage TARGET_NAME)
           ${CMAKE_COVERAGE_DATA_DIRECTORY}/profraw/${target_code_coverage_COVERAGE_TARGET_NAME}
         COMMAND ${CMAKE_COMMAND} -E rm -f
                 ${CMAKE_COVERAGE_DATA_DIRECTORY}/ccov-all.profdata
-        DEPENDS ccov-libs ${TARGET_NAME})
+        DEPENDS ${TARGET_NAME})
       add_custom_target(
         ccov-run-${target_code_coverage_COVERAGE_TARGET_NAME}
         DEPENDS ${target_code_coverage_COVERAGE_TARGET_NAME}.profraw)