fix vendor integration for entt

CMakeLists.txt

@@ -31,8 +31,9 @@ project(fggl
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
 # vendor dependencies
+add_subdirectory( vendor/entt )
 add_subdirectory( vendor/imgui )
-add_subdirectory(vendor/glad)
+add_subdirectory( vendor/glad )
 
 # engine headers
 file(GLOB_RECURSE public_headers
@@ -44,9 +45,6 @@ add_subdirectory( fggl )
 target_compile_options( fggl PRIVATE -Wall -Wpedantic -Wextra -Wodr -fno-strict-aliasing -fno-strict-overflow )
 set_property(TARGET fggl PROPERTY INTERPROCEDURAL_OPTIMIZATION True)
 
-# vendor dependencies
-add_subdirectory( integrations/entt )
-
 # Unit Tests
 if (FGGL_TESTS)
 	include(CTest)

fggl/CMakeLists.txt

@@ -5,6 +5,8 @@ file(GLOB_RECURSE HEADER_LIST CONFIGURE_DEPENDS "${CMAKE_SOURCE_DIR}/include/fgg
 # Should be shared linkage for legal reasons (LGPL)
 add_library(fggl ${HEADER_LIST})
 
+target_link_libraries(fggl PUBLIC entt)
+
 # we need to tell people using the library about our headers
 target_include_directories(fggl
         PUBLIC

integrations/entt/CMakeLists.txt

-target_include_directories( fggl
-        PUBLIC
-            $<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include>
-            $<INSTALL_INTERFACE:include>
-)

vendor/entt/CMakeLists.txt

+add_library( entt INTERFACE )
+
+target_include_directories( entt
+        INTERFACE
+            $<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/include>
+            $<INSTALL_INTERFACE:include>
+)
+
+install(
+        FILES
+            include/fggl/vendor/entt.hpp
+        DESTINATION
+            ${CMAKE_INSTALL_INCLUDEDIR}/fggl/vendor/entt.hpp
+)
+
+install(TARGETS entt
+        EXPORT fgglTargets
+        DESTINATION
+            ${CMAKE_INSTALL_LIBDIR}/fggl/entt
+)