fix packaging error

Author: e-gleba

CMakePresets.json

@@ -151,7 +151,7 @@
       "name": "clang-package",
       "displayName": "Clang Package",
       "configurePreset": "clang",
-      "generators": ["TGZ", "DEB"]
+      "generators": ["TGZ", "RPM"]
     },
     {
       "name": "gcc-package",

cmake/cpm/doctest-config.cmake

@@ -9,6 +9,8 @@ cpmaddpackage(
     2.4.12
     SYSTEM
     YES
+    GIT_SHALLOW
+    TRUE
     OPTIONS
     "DOCTEST_WITH_TESTS OFF"
     "DOCTEST_WITH_MAIN_IN_STATIC_LIB OFF"

cmake/cpm/sdl3-config.cmake

@@ -9,6 +9,8 @@ cpmaddpackage(
     a96677bdf6b4acb84af4ec294e5f60a4e8cbbe03
     SYSTEM
     YES
+    GIT_SHALLOW
+    TRUE
     OPTIONS
     "SDL_STATIC
     OFF"

cmake/pkg/package-config.cmake

@@ -1,3 +1,5 @@
+include(CPack)
+
 set(PROJECT_VENDOR "geugenm")
 set(PROJECT_CONTACT "glebajk@gmail.com")
 set(PROJECT_LICENSE "GPL-2.0") # Use SPDX identifier (required by DEB/RPM)
@@ -18,13 +20,6 @@ set(PROJECT_ICON_FILE "${CMAKE_CURRENT_LIST_DIR}/icon.png")
 set(PROJECT_LICENSE_FILE "${CMAKE_SOURCE_DIR}/license") # uppercase (convention)
 set(PROJECT_README_FILE "${CMAKE_SOURCE_DIR}/readme.md")
 
-foreach(file ${PROJECT_LICENSE_FILE} ${PROJECT_README_FILE}
-             ${PROJECT_ICON_FILE})
-    if(NOT EXISTS "${file}")
-        message(WARNING "CPack resource missing: ${file}")
-    endif()
-endforeach()
-
 configure_file("${CMAKE_CURRENT_LIST_DIR}/package.desktop.in"
                "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.desktop" @ONLY)
 
@@ -46,7 +41,6 @@ install(FILES "${PROJECT_ICON_FILE}"
 install(FILES "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.desktop"
         DESTINATION "share/applications")
 
-include(CPack)
 cpack_add_component(
     documentation
     DISPLAY_NAME "Documentation"