Add dependencies to CMake config.

CMakeLists.txt

@@ -38,6 +38,8 @@ if(WITH_CLANG-TIDY)
     "-quiet")
 endif()
 
+add_subdirectory(cmake)
+
 add_subdirectory(lib)
 
 if(WITH_GUI)

cmake/CMakeLists.txt

@@ -0,0 +1,5 @@
+include(GNUInstallDirs)
+
+install(FILES
+  "FindFilesystem.cmake"
+  DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}")

lib/cmake/FediPotatoConfig.cmake.in

@@ -1,5 +1,7 @@
 include(CMakeFindDependencyMacro)
 
 find_dependency(mastodonpp 0.5 REQUIRED CONFIG)
+find_dependency(Filesystem REQUIRED)
+find_dependency(nlohmann_json REQUIRED CONFIG)
 
 include("${CMAKE_CURRENT_LIST_DIR}/@PROJECT_NAME@Targets.cmake")

lib/src/CMakeLists.txt

@@ -1,7 +1,7 @@
 include(GNUInstallDirs)
 
 find_package(mastodonpp REQUIRED CONFIG)
-find_package(Filesystem)
+find_package(Filesystem REQUIRED)
 find_package(nlohmann_json REQUIRED CONFIG)
 
 add_library(${PROJECT_NAME})