Make CPM default to OFF for linux... for now.

Ensure non-CPM builds still work

CMakeLists.txt

@@ -94,16 +94,7 @@ CMAKE_DEPENDENT_OPTION(CITRON_CRASH_DUMPS "Compile crash dump (Minidump) support
 option(CITRON_USE_BUNDLED_VCPKG "Use vcpkg for citron dependencies" "${MSVC}")
 option(CITRON_USE_CPM "Use CPM.cmake to fetch dependencies" OFF)
 
-# Auto-enable CPM for Linux/MinGW if not using vcpkg
-if (NOT CITRON_USE_BUNDLED_VCPKG AND (UNIX OR MINGW))
-    set(CITRON_USE_CPM ON CACHE BOOL "" FORCE)
-endif()
-
-if (CITRON_USE_CPM)
-    set(CITRON_CHECK_SUBMODULES OFF CACHE BOOL "" FORCE)
-else()
-    option(CITRON_CHECK_SUBMODULES "Check if submodules are present" ON)
-endif()
+option(CITRON_CHECK_SUBMODULES "Check if submodules are present" ON)
 
 option(CITRON_ENABLE_LTO "Enable link-time optimization" OFF)
 

CMakeModules/CopyCitronQt6Deps.cmake

@@ -222,11 +222,20 @@ function(copy_citron_Qt6_deps target_dir)
         endif()
     endif()
 
-    # Create a qt.conf next to the executable.
-    file(MAKE_DIRECTORY "${DLL_DEST}")
+    # Create a qt.conf next to the executable at build time.
+    # This handles generator expressions in DLL_DEST (e.g. on MSVC).
     if (USE_LIB_FOLDER)
-        file(WRITE "${DLL_DEST}qt.conf" "[Paths]\nPlugins = plugins\n")
+        set(_QT_CONF_CONTENTS "[Paths]\nPlugins = plugins\n")
     else()
-        file(WRITE "${DLL_DEST}qt.conf" "")
+        set(_QT_CONF_CONTENTS "")
     endif()
+
+    set(_QT_CONF_TEMP "${CMAKE_CURRENT_BINARY_DIR}/qt.conf.${target_dir}.temp")
+    file(WRITE "${_QT_CONF_TEMP}" "${_QT_CONF_CONTENTS}")
+
+    add_custom_command(TARGET ${target_dir} POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E make_directory "${DLL_DEST}"
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different "${_QT_CONF_TEMP}" "${DLL_DEST}qt.conf"
+        COMMENT "Creating qt.conf for ${target_dir}"
+    )
 endfunction(copy_citron_Qt6_deps)

CMakeModules/qt_download.cmake

@@ -59,12 +59,24 @@ if (WIN32)
     set(_QT_DIR_NAME  "llvm-mingw_64")
     set(_QT_CMAKE_SUB "lib/cmake/Qt6")
 else()
-    # Native Linux (or macOS — extend here if needed)
-    set(_QT_OS        "linux")
-    set(_QT_TARGET    "desktop")
-    set(_QT_ARCH      "linux_gcc_64")
-    set(_QT_DIR_NAME  "gcc_64")
-    set(_QT_CMAKE_SUB "lib/cmake/Qt6")
+    if (APPLE)
+        set(_QT_OS        "mac")
+        set(_QT_TARGET    "desktop")
+        if (ARCHITECTURE_arm64)
+            set(_QT_ARCH  "mac_arm64")
+        else()
+            set(_QT_ARCH  "mac_x64")
+        endif()
+        set(_QT_DIR_NAME  "macos")
+        set(_QT_CMAKE_SUB "lib/cmake/Qt6")
+    else()
+        # Native Linux
+        set(_QT_OS        "linux")
+        set(_QT_TARGET    "desktop")
+        set(_QT_ARCH      "linux_gcc_64")
+        set(_QT_DIR_NAME  "gcc_64")
+        set(_QT_CMAKE_SUB "lib/cmake/Qt6")
+    endif()
 endif()
 
 # ── Download target Qt ────────────────────────────────────────────────────────