Support QtIFW 4.0

QtIFW 4.0 has been released https://doc.qt.io/qtinstallerframework/index.html

installerbase v4.0 segfaults on macOS if you pass --framework-version, so reorder the _ifw_version_argument arguments to use --version first.

diff --git a/Modules/CPackIFW.cmake b/Modules/CPackIFW.cmake
index 58e6a375f4..0c264e4aba 100644
--- a/Modules/CPackIFW.cmake
+++ b/Modules/CPackIFW.cmake
@@ -361,6 +361,7 @@ set(_CPACK_IFW_PREFIXES
   "QtIFW-")
 
 set(_CPACK_IFW_VERSIONS
+  "4.0"
   "3.2"
   "3.2.0"
   "3.1"
@@ -456,7 +457,7 @@ mark_as_advanced(CPACK_IFW_FRAMEWORK_VERSION_TIMEOUT)
 if(CPACK_IFW_INSTALLERBASE_EXECUTABLE AND NOT CPACK_IFW_FRAMEWORK_VERSION_FORCED)
   set(CPACK_IFW_FRAMEWORK_VERSION)
   # Invoke version from "installerbase" executable
-  foreach(_ifw_version_argument --framework-version --version)
+  foreach(_ifw_version_argument --version --framework-version)
     if(NOT CPACK_IFW_FRAMEWORK_VERSION)
       execute_process(COMMAND
         "${CPACK_IFW_INSTALLERBASE_EXECUTABLE}" ${_ifw_version_argument}

mentioned in merge request !5502 (merged)

FYI, output on macOS 10.15.7, QtIFW 4.0:

zsh% ~/Qt/Tools/QtInstallerFramework/4.0/bin/installerbase --framework-version
Unknown option: framework-version
zsh: segmentation fault  ~/Qt/Tools/QtInstallerFramework/4.0/bin/installerbase --framework-version

zsh% ~/Qt/Tools/QtInstallerFramework/4.0/bin/installerbase --version
IFW Version: 4.0.0, built with Qt 5.12.7.
Build date: Nov  2 2020
Installer Framework SHA1: 07f4848b

changed milestone to %3.19.0

added area:cpack triage:env-regression labels

closed with merge request !5502 (merged)

closed with commit 63ae96a3

mentioned in commit 63ae96a3