CMake: Adjust some status messages about syncqt and file generation

Show a status message when we run syncqt for a module (gives a bit
more insight into why the configuration seems to stall for a moment).

Remove some uninformative messages about generating config.h files
and Depends headers, etc.

Change-Id: I5ff2774b9cf5d92ddde564dc09f4197c2835ee4a
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>

cmake/QtBuild.cmake

@@ -2679,6 +2679,7 @@ function(qt_add_module target)
                                  -outdir "${QT_BUILD_DIR}"
                                  -builddir "${PROJECT_BINARY_DIR}"
                                  "${PROJECT_SOURCE_DIR}")
+        message(STATUS "Running syncqt for module: '${module_include_name}' ")
         execute_process(COMMAND ${syncqt_full_command})
 
         set_target_properties("${target}" PROPERTIES INTERFACE_MODULE_HAS_HEADERS ON)

cmake/QtFeature.cmake

@@ -424,7 +424,6 @@ function(qt_internal_generate_feature_line line feature)
 endfunction()
 
 function(qt_internal_feature_write_file file features extra)
-    message("Generating file ${file}.")
     set(contents "")
     foreach(it ${features})
         qt_internal_generate_feature_line(line "${it}")

cmake/QtPostProcess.cmake

@@ -1,6 +1,5 @@
 function(qt_internal_write_depends_file module)
     set(outfile "${QT_BUILD_DIR}/${INSTALL_INCLUDEDIR}/${module}/${module}Depends")
-    message("Generating ${outfile}...")
     set(contents "/* This file was generated by cmake with the info from ${module} target. */\n")
     string(APPEND contents "#ifdef __cplusplus /* create empty PCH in C mode */\n")
     foreach (m ${ARGN})
@@ -256,12 +255,10 @@ endfunction()
 function(qt_internal_create_depends_files)
     qt_internal_get_qt_repo_known_modules(repo_known_modules)
 
-    message("Generating ModuleDepends files and CMake ModuleDependencies files for ${repo_known_modules}...")
     foreach (target ${repo_known_modules})
         qt_internal_create_module_depends_file(${target})
     endforeach()
 
-    message("Generating CMake PluginDependencies files for ${QT_KNOWN_PLUGINS}...")
     foreach (target ${QT_KNOWN_PLUGINS})
         qt_internal_create_plugin_depends_file(${target})
     endforeach()