CMake: Namespace all our IMPORTED targets

CMake IMPORTED targets should be namespaced so that CMake knows that
the name refers to a target and not a file.

Use the existing WrapXXX naming scheme where applicable.

Fixes: QTBUG-83773
Change-Id: I5b0b722c811200c56c260c69e76940a625228769
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>

cmake/FindSlog2.cmake

@@ -11,9 +11,7 @@ find_package_handle_standard_args(Slog2 DEFAULT_MSG Slog2_INCLUDE_DIR Slog2_LIBR
 mark_as_advanced(Slog2_INCLUDE_DIR Slog2_LIBRARY)
 
 if(Slog2_FOUND)
-    add_library(__Slog2 INTERFACE IMPORTED)
-    target_link_libraries(__Slog2 INTERFACE ${Slog2_LIBRARY})
-    target_include_directories(__Slog2 INTERFACE ${Slog2_INCLUDE_DIR})
-
-    add_library(Slog2::Slog2 ALIAS __Slog2)
+    add_library(Slog2::Slog2 INTERFACE IMPORTED)
+    target_link_libraries(Slog2::Slog2 INTERFACE ${Slog2_LIBRARY})
+    target_include_directories(Slog2::Slog2 INTERFACE ${Slog2_INCLUDE_DIR})
 endif()

cmake/FindWrapAtomic.cmake

@@ -1,7 +1,7 @@
 # We can't create the same interface imported target multiple times, CMake will complain if we do
 # that. This can happen if the find_package call is done in multiple different subdirectories.
-if(TARGET Atomic)
-    set(Atomic_FOUND ON)
+if(TARGET WrapAtomic::WrapAtomic)
+    set(WrapAtomic_FOUND ON)
     return()
 endif()
 
@@ -36,9 +36,9 @@ if(NOT HAVE_STDATOMIC)
     set(CMAKE_REQUIRE_LIBRARIES "${_req_libraries}")
 endif()
 
-add_library(Atomic INTERFACE IMPORTED)
+add_library(WrapAtomic::WrapAtomic INTERFACE IMPORTED)
 if(HAVE_STDATOMIC_WITH_LIB)
-    target_link_libraries(Atomic INTERFACE atomic)
+    target_link_libraries(WrapAtomic::WrapAtomic INTERFACE atomic)
 endif()
 
-set(Atomic_FOUND 1)
+set(WrapAtomic_FOUND 1)

cmake/FindWrapRt.cmake

@@ -1,6 +1,6 @@
 # We can't create the same interface imported target multiple times, CMake will complain if we do
 # that. This can happen if the find_package call is done in multiple different subdirectories.
-if(TARGET WrapRt)
+if(TARGET WrapRt::WrapRt)
     set(WrapRt_FOUND ON)
     return()
 endif()
@@ -30,8 +30,8 @@ cmake_pop_check_state()
 
 if(HAVE_GETTIME)
     set(WrapRt_FOUND ON)
-    add_library(WrapRt INTERFACE IMPORTED)
+    add_library(WrapRt::WrapRt INTERFACE IMPORTED)
     if (LIBRT_FOUND)
-        target_link_libraries(WrapRt INTERFACE "${LIBRT}")
+        target_link_libraries(WrapRt::WrapRt INTERFACE "${LIBRT}")
     endif()
 endif()

src/corelib/CMakeLists.txt

@@ -671,7 +671,7 @@ qt_extend_target(Core CONDITION QT_FEATURE_future
 
 qt_extend_target(Core CONDITION QT_FEATURE_std_atomic64
     PUBLIC_LIBRARIES
-        Atomic
+        WrapAtomic::WrapAtomic
 )
 
 qt_extend_target(Core CONDITION ICC
@@ -1070,7 +1070,7 @@ qt_extend_target(Core CONDITION QT_FEATURE_glib AND UNIX
 
 qt_extend_target(Core CONDITION QT_FEATURE_clock_gettime AND UNIX
     LIBRARIES
-        WrapRt
+        WrapRt::WrapRt
 )
 
 qt_extend_target(Core CONDITION UNIX AND NOT ANDROID

src/corelib/configure.cmake

@@ -18,8 +18,8 @@ qt_find_package(WrapDoubleConversion PROVIDED_TARGETS WrapDoubleConversion::Wrap
 qt_find_package(GLIB2 PROVIDED_TARGETS GLIB2::GLIB2)
 qt_find_package(ICU COMPONENTS i18n uc data PROVIDED_TARGETS ICU::i18n ICU::uc ICU::data)
 qt_find_package(Libsystemd PROVIDED_TARGETS PkgConfig::Libsystemd)
-qt_find_package(Atomic PROVIDED_TARGETS Atomic)
-qt_find_package(WrapRt PROVIDED_TARGETS WrapRt)
+qt_find_package(WrapAtomic PROVIDED_TARGETS WrapAtomic::WrapAtomic)
+qt_find_package(WrapRt PROVIDED_TARGETS WrapRt::WrapRt)
 qt_find_package(LTTngUST PROVIDED_TARGETS LTTng::UST)
 qt_find_package(WrapSystemPCRE2 PROVIDED_TARGETS WrapSystemPCRE2::WrapSystemPCRE2)
 set_package_properties(WrapPCRE2 PROPERTIES TYPE REQUIRED)
@@ -65,7 +65,7 @@ test(fptr);
 qt_config_compile_test(clock_monotonic
     LABEL "POSIX monotonic clock"
     LIBRARIES
-        WrapRt
+        WrapRt::WrapRt
     CODE
 "
 #include <unistd.h>
@@ -640,7 +640,7 @@ qt_feature("linkat" PRIVATE
 )
 qt_feature("std-atomic64" PUBLIC
     LABEL "64 bit atomic operations"
-    CONDITION Atomic_FOUND
+    CONDITION WrapAtomic_FOUND
 )
 qt_feature("mimetype" PUBLIC
     SECTION "Utilities"

util/cmake/helper.py

@@ -440,14 +440,14 @@ _library_map = [
     ),
     LibraryMapping("journald", "Libsystemd", "PkgConfig::Libsystemd"),
     LibraryMapping("jpeg", "JPEG", "JPEG::JPEG"),  # see also libjpeg
-    LibraryMapping("libatomic", "Atomic", "Atomic"),
+    LibraryMapping("libatomic", "WrapAtomic", "WrapAtomic::WrapAtomic"),
     LibraryMapping("libclang", "WrapLibClang", "WrapLibClang::WrapLibClang"),
     LibraryMapping("libdl", None, "${CMAKE_DL_LIBS}"),
     LibraryMapping("libinput", "Libinput", "Libinput::Libinput"),
     LibraryMapping("libjpeg", "JPEG", "JPEG::JPEG"),  # see also jpeg
     LibraryMapping("libpng", "WrapPNG", "WrapPNG::WrapPNG", is_bundled_with_qt=True),
     LibraryMapping("libproxy", "Libproxy", "PkgConfig::Libproxy"),
-    LibraryMapping("librt", "WrapRt", "WrapRt"),
+    LibraryMapping("librt", "WrapRt", "WrapRt::WrapRt"),
     LibraryMapping("libudev", "Libudev", "PkgConfig::Libudev"),
     LibraryMapping("lttng-ust", "LTTngUST", "LTTng::UST", resultVariable="LTTNGUST"),
     LibraryMapping("mtdev", "Mtdev", "PkgConfig::Mtdev"),