Revert "CMake: Fix usage of find_dependency()"

This reverts commit 58c1c6ee5c.

This lead to configuration errors on some machines, blocking
development.

Change-Id: I744f6cc95fbaa273519ab8fc8fb492b87f5729b8
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

cmake/QtConfig.cmake.in

@@ -51,7 +51,7 @@ endif()
 
 # Find required dependencies, if any.
 include(CMakeFindDependencyMacro)
-set(@INSTALL_CMAKE_NAMESPACE@_DEPENDENCIES_FOUND FALSE)
+set(@INSTALL_CMAKE_NAMESPACE@_DEPENDENCIES_FOUND TRUE)
 if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/@INSTALL_CMAKE_NAMESPACE@Dependencies.cmake")
     include("${CMAKE_CURRENT_LIST_DIR}/@INSTALL_CMAKE_NAMESPACE@Dependencies.cmake")
 endif()

cmake/QtConfigDependencies.cmake.in

@@ -12,24 +12,24 @@ foreach(_target_dep ${_third_party_deps})
         list(APPEND find_package_args "${version}")
     endif()
 
-    # Already build an error message, because find_dependency calls return() on failure.
-    set(__@INSTALL_CMAKE_NAMESPACE@_message "\nPackage: ${pkg}")
-    if(version)
-        string(APPEND __@INSTALL_CMAKE_NAMESPACE@_message "\nVersion: ${version}")
-    endif()
-    if(components)
-        string(APPEND __@INSTALL_CMAKE_NAMESPACE@_message "\nComponents: ${components}")
-    endif()
-    set(@INSTALL_CMAKE_NAMESPACE@_DEPENDENCY_NOT_FOUND_MESSAGE
-        "${__@INSTALL_CMAKE_NAMESPACE@_message}")
-
     if(components)
         string(REPLACE " " ";" components "${components}")
         find_dependency(${find_package_args} COMPONENTS ${components})
     else()
         find_dependency(${find_package_args})
     endif()
-endforeach()
 
-set(@INSTALL_CMAKE_NAMESPACE@_DEPENDENCIES_FOUND TRUE)
+    if (NOT ${pkg}_FOUND)
-unset(@INSTALL_CMAKE_NAMESPACE@_DEPENDENCY_NOT_FOUND_MESSAGE)
+        set(@INSTALL_CMAKE_NAMESPACE@_DEPENDENCIES_FOUND FALSE)
+        set(__@INSTALL_CMAKE_NAMESPACE@_message "\nPackage: ${pkg}")
+        if(version)
+            string(APPEND __@INSTALL_CMAKE_NAMESPACE@_message "\nVersion: ${version}")
+        endif()
+        if(components)
+            string(APPEND __@INSTALL_CMAKE_NAMESPACE@_message "\nComponents: ${components}")
+        endif()
+        set(@INSTALL_CMAKE_NAMESPACE@_DEPENDENCY_NOT_FOUND_MESSAGE
+            "${__@INSTALL_CMAKE_NAMESPACE@_message}")
+        return()
+    endif()
+endforeach()

cmake/QtModuleDependencies.cmake.in

@@ -1,8 +1,11 @@
 # Make sure @INSTALL_CMAKE_NAMESPACE@ is found before anything else.
-set(@INSTALL_CMAKE_NAMESPACE@@target@_FOUND FALSE)
 find_dependency(@INSTALL_CMAKE_NAMESPACE@ @PROJECT_VERSION@
     PATHS "${CMAKE_CURRENT_LIST_DIR}/.." ${QT_EXAMPLES_CMAKE_PREFIX_PATH} NO_DEFAULT_PATH
 )
+if (NOT @INSTALL_CMAKE_NAMESPACE@_FOUND)
+    set(@INSTALL_CMAKE_NAMESPACE@@target@_FOUND FALSE)
+    return()
+endif()
 
 # note: _third_party_deps example: "ICU\\;1.0\\;i18n uc data;ZLIB\\;\\;"
 set(_third_party_deps "@third_party_deps@")
@@ -22,6 +25,11 @@ foreach(_target_dep ${_third_party_deps})
     else()
         find_dependency(${find_package_args})
     endif()
+
+    if (NOT ${pkg}_FOUND)
+        set(@INSTALL_CMAKE_NAMESPACE@@target@_FOUND FALSE)
+        return()
+    endif()
 endforeach()
 
 # Find Qt tool package.
@@ -39,15 +47,10 @@ foreach(_target_dep ${_tool_deps})
     list(GET _target_dep 0 pkg)
     list(GET _target_dep 1 version)
 
-    unset(find_package_args)
+    find_dependency(${pkg} ${version})
-    if(${CMAKE_FIND_PACKAGE_NAME}_FIND_QUIETLY)
+
-        list(APPEND find_package_args QUIET)
-    endif()
-    if(${CMAKE_FIND_PACKAGE_NAME}_FIND_REQUIRED)
-        list(APPEND find_package_args REQUIRED)
-    endif()
-    find_package(${pkg} ${version} ${find_package_args})
     if (NOT ${pkg}_FOUND)
+        set(@INSTALL_CMAKE_NAMESPACE@@target@_FOUND FALSE)
         if(QT_HOST_PATH)
              set(CMAKE_PREFIX_PATH ${BACKUP_@target@_CMAKE_PREFIX_PATH})
              set(CMAKE_FIND_ROOT_PATH ${BACKUP_@target@_CMAKE_FIND_ROOT_PATH})
@@ -71,7 +74,12 @@ foreach(_target_dep ${_target_deps})
             PATHS "${CMAKE_CURRENT_LIST_DIR}/.." ${QT_EXAMPLES_CMAKE_PREFIX_PATH} NO_DEFAULT_PATH
         )
     endif()
+
+    if (NOT ${pkg}_FOUND)
+        set(@INSTALL_CMAKE_NAMESPACE@@target@_FOUND FALSE)
+        return()
+    endif()
 endforeach()
 
 set(_@QT_CMAKE_EXPORT_NAMESPACE@@target@_MODULE_DEPENDENCIES "@qt_module_dependencies@")
-set(@INSTALL_CMAKE_NAMESPACE@@target@_FOUND TRUE)
+

cmake/QtModuleToolsDependencies.cmake.in

@@ -1,5 +1,4 @@
 # Find "ModuleTools" dependencies, which are other ModuleTools packages.
-set(@INSTALL_CMAKE_NAMESPACE@@target@_FOUND FALSE)
 set(_tool_deps "@package_deps@")
 foreach(_target_dep ${_tool_deps})
     list(GET _target_dep 0 pkg)
@@ -8,6 +7,10 @@ foreach(_target_dep ${_tool_deps})
     if (NOT ${pkg}_FOUND)
         find_dependency(${pkg} ${version})
     endif()
+
+    if (NOT ${pkg}_FOUND)
+        set(@INSTALL_CMAKE_NAMESPACE@@target@_FOUND FALSE)
+        return()
+    endif()
 endforeach()
 
-set(@INSTALL_CMAKE_NAMESPACE@@target@_FOUND TRUE)

cmake/QtPluginDependencies.cmake.in

@@ -1,5 +1,3 @@
-set(@target@_FOUND FALSE)
-
 # note: _third_party_deps example: "ICU\\;1.0\\;i18n uc data;ZLIB\\;\\;"
 set(_third_party_deps "@third_party_deps@")
 
@@ -12,11 +10,16 @@ foreach(_target_dep ${_third_party_deps})
         list(APPEND find_package_args "${version}")
     endif()
 
-    if(components)
+        if(components)
-        string(REPLACE " " ";" components "${components}")
+            string(REPLACE " " ";" components "${components}")
-        find_dependency(${find_package_args} COMPONENTS ${components})
+            find_dependency(${find_package_args} COMPONENTS ${components})
-    else()
+        else()
-        find_dependency(${find_package_args})
+            find_dependency(${find_package_args})
+        endif()
+
+    if (NOT ${pkg}_FOUND)
+        set(@target@_FOUND FALSE)
+        return()
     endif()
 endforeach()
 
@@ -31,6 +34,9 @@ foreach(_target_dep ${_target_deps})
             PATHS @find_dependency_paths@ ${QT_EXAMPLES_CMAKE_PREFIX_PATH} NO_DEFAULT_PATH
         )
     endif()
-endforeach()
 
-set(@target@_FOUND TRUE)
+    if (NOT ${pkg}_FOUND)
+        set(@target@_FOUND FALSE)
+        return()
+    endif()
+endforeach()