set major versions via variables for Qt Creator version

CMakeLists.txt

@@ -1,6 +1,14 @@
 cmake_minimum_required(VERSION 3.10)
+project(LANGUAGES CXX)
 
-project(ROSProjectManager VERSION 15.0)
+# get Qt Creator major version
+find_package(QtCreator REQUIRED)
+string(REGEX MATCH "^([0-9]+)\\.([0-9]+)\\.([0-9]+)?$" QTC_VER_COMPAT ${IDE_VERSION_COMPAT})
+set(QTC_COMPAT_MAJOR ${CMAKE_MATCH_1})
+string(REGEX MATCH "^([0-9]+)\\.([0-9]+)\\.([0-9]+)" QTC_VER_DISPLAY ${IDE_VERSION_DISPLAY})
+set(QTC_DISPLAY_MAJOR ${CMAKE_MATCH_1})
+
+project(ROSProjectManager VERSION ${QTC_DISPLAY_MAJOR}.0)
 
 if(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
     add_compile_options(-Werror -Wall -Wextra -Wpedantic -Wsuggest-override)

packaging/cpack.cmake

@@ -22,10 +22,10 @@ set(CPACK_GENERATOR "ZIP")
 set(CPACK_PROJECT_CONFIG_FILE "${CMAKE_SOURCE_DIR}/packaging/cpack-config.cmake")
 
 # Debian package settings
-math(EXPR PROJECT_VERSION_MAJOR_NEXT "${PROJECT_VERSION_MAJOR}+1")
+math(EXPR QTC_COMPAT_MAJOR_NEXT "${QTC_COMPAT_MAJOR}+1")
 set(CPACK_DEBIAN_PACKAGE_MAINTAINER "Christian Rauch <[email protected]>")
 set(CPACK_DEBIAN_PACKAGE_SHLIBDEPS YES)
-set(CPACK_DEBIAN_PACKAGE_DEPENDS "qtcreator (>=${PROJECT_VERSION_MAJOR}), qtcreator (<<${PROJECT_VERSION_MAJOR_NEXT})")
+set(CPACK_DEBIAN_PACKAGE_DEPENDS "qtcreator (>=${QTC_COMPAT_MAJOR}), qtcreator (<<${QTC_COMPAT_MAJOR_NEXT})")
 set(CPACK_DEBIAN_DEBUGINFO_PACKAGE ON)
 
 include(CPack)