I really hate cmake

CMakeLists.txt

@@ -4,6 +4,8 @@ set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED True)
 set(CMAKE_EXPORT_COMPILE_COMMANDS True)
 
+set(THIRD_PARTY_DIR ${CMAKE_BINARY_DIR}/third_party)
+
 find_package (Threads REQUIRED)
 
 include(cmake/Pistache.cmake)

cmake/Pistache.cmake

@@ -1,15 +1,19 @@
+project(pistache)
 include(ExternalProject)
 
-set(EXTERNAL_INSTALL_LOCATION ${CMAKE_CURRENT_SOURCE_DIR}/external)
+set(PISTACHE_BINARY_DIR ${THIRD_PARTY_DIR}/pistache)
 
-ExternalProject_Add(pistache_extern
+ExternalProject_Add(${PROJECT_NAME}_extern
   GIT_REPOSITORY  https://github.com/pistacheio/pistache.git
   GIT_TAG         master
-  #CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${EXTERNAL_INSTALL_LOCATION}
+  BINARY_DIR      ${PISTACHE_BINARY_DIR}
   INSTALL_COMMAND ""
 )
-# include_directories(${EXTERNAL_INSTALL_LOCATION}/include)
-# link_directories(${EXTERNAL_INSTALL_LOCATION}/lib)
 
-#add_library(pistache STATIC IMPORTED GLOBAL)
-#SET_PROPERTY(TARGET pistache IMPORTED_LOCATION ${EXTERNA_INSTALL_LOCATION})
+add_library(${PROJECT_NAME} STATIC IMPORTED)
+add_dependencies(${PROJECT_NAME} ${PROJECT_NAME}_extern)
+
+set_target_properties(${PROJECT_NAME} PROPERTIES IMPORTED_LOCATION "${PISTACHE_BINARY_DIR}/lib/libpistache.a")
+
+#file(MAKE_DIRECTORY "${PISTACHE_BINARY_DIR}/include")
+target_include_directories(${PROJECT_NAME} SYSTEM INTERFACE "${PISTACHE_BINARY_DIR}/include/")

daggy/CMakeLists.txt

@@ -1,9 +1,9 @@
 project(daggy)
 
-ExternalProject_Add_StepDependencies(pistache_extern build)
+#ExternalProject_Add_StepDependencies(pistache_extern build)
 
 file(GLOB SOURCES src/*.cpp)
-add_library(${PROJECT_NAME} SHARED ${SOURCES})
+add_library(${PROJECT_NAME} STATIC ${SOURCES})
 target_include_directories(${PROJECT_NAME} PUBLIC include)
-add_dependencies(${PROJECT_NAME} pistache_extern)
-target_link_libraries(${PROJECT_NAME} pistache_static pthread)
+add_dependencies(${PROJECT_NAME} pistache)
+target_link_libraries(${PROJECT_NAME} pistache pthread)