Update dependencies

Author: cschreib

.gitmodules

@@ -1,10 +1,10 @@
-[submodule "sol2"]
+[submodule "extern/sol2"]
 	path = extern/sol2
-	url = https://github.com/cschreib/sol2.git
-[submodule "utfcpp"]
+	url = https://github.com/ThePhD/sol2.git
+[submodule "extern/utfcpp"]
 	path = extern/utfcpp
 	url = https://github.com/nemtrif/utfcpp.git
-[submodule "fmt"]
+[submodule "extern/fmt"]
 	path = extern/fmt
 	url = https://github.com/fmtlib/fmt.git
 [submodule "extern/observable_unique_ptr"]

CMakeLists.txt

@@ -188,10 +188,11 @@ if (LUA_VERSION_STRING VERSION_GREATER_EQUAL 5.1 AND LUA_VERSION_STRING VERSION_
 endif()
 
 # add the subdirectories for dependencies
-set(UTF8_INSTALL 1)
-set(MAGIC_ENUM_OPT_INSTALL 1)
 add_subdirectory(extern/utfcpp)
+
 add_subdirectory(extern/observable_unique_ptr)
+
+set(MAGIC_ENUM_OPT_INSTALL 1)
 add_subdirectory(extern/magic_enum)
 
 if(LXGUI_BUILD_FMT)
@@ -333,7 +334,7 @@ target_link_libraries(lxgui PUBLIC fmt::fmt)
 target_link_libraries(lxgui PUBLIC oup::oup)
 target_link_libraries(lxgui PUBLIC magic_enum::magic_enum)
 target_compile_definitions(lxgui PRIVATE -DUTF_CPP_CPLUSPLUS=201703L)
-target_link_libraries(lxgui PRIVATE utf8::cpp)
+target_link_libraries(lxgui PRIVATE utf8cpp)
 if(LXGUI_ENABLE_XML_PARSER)
     target_link_libraries(lxgui PRIVATE pugixml::pugixml)
 endif()
@@ -362,7 +363,7 @@ file(GLOB files ${PROJECT_SOURCE_DIR}/include/lxgui/*.hpp)
 install(FILES ${files} DESTINATION ${CMAKE_INSTALL_PREFIX}/include/lxgui)
 install(FILES "${PROJECT_BINARY_DIR}/lxgui/lxgui.hpp" DESTINATION ${CMAKE_INSTALL_PREFIX}/include/lxgui)
 
-set(LXGUI_INSTALL_TARGETS lxgui)
+set(LXGUI_INSTALL_TARGETS lxgui utf8cpp)
 
 ##############################################################################
 # Back-ends

extern/fmt

@@ -18,7 +18,7 @@
 #include <limits>
 #include <list>
 #include <lxgui/extern_sol2_protected_function.hpp>
-#include <magic_enum.hpp>
+#include <magic_enum/magic_enum.hpp>
 #include <optional>
 #include <set>
 #include <unordered_map>

extern/magic_enum

@@ -8,7 +8,7 @@
 #include "lxgui/utils_sorted_vector.hpp"
 
 #include <functional>
-#include <magic_enum.hpp>
+#include <magic_enum/magic_enum.hpp>
 
 namespace lxgui::gui {
 
@@ -26,10 +26,10 @@ class frame_renderer {
     virtual ~frame_renderer() = default;
 
     // Non-copiable, non-movable
-    frame_renderer(const frame_renderer&) = delete;
-    frame_renderer(frame_renderer&&)      = delete;
+    frame_renderer(const frame_renderer&)            = delete;
+    frame_renderer(frame_renderer&&)                 = delete;
     frame_renderer& operator=(const frame_renderer&) = delete;
-    frame_renderer& operator=(frame_renderer&&) = delete;
+    frame_renderer& operator=(frame_renderer&&)      = delete;
 
     /// Tells this renderer that one of its region requires redraw.
     virtual void notify_strata_needs_redraw(strata strata_id);