Don't look for sqlite when not building peerstats

CMakeLists.txt

@@ -259,7 +259,6 @@ if(WITH_SYSTEMD AND (NOT ANDROID))
 endif()
 
 add_subdirectory(external)
-include_directories(SYSTEM external/sqlite_orm/include)
 
 if(USE_JEMALLOC AND NOT STATIC_LINK)
   pkg_check_modules(JEMALLOC jemalloc IMPORTED_TARGET)

external/CMakeLists.txt

@@ -79,14 +79,16 @@ endif()
 
 add_subdirectory(cxxopts EXCLUDE_FROM_ALL)
 
-add_library(sqlite_orm INTERFACE)
-target_include_directories(sqlite_orm SYSTEM INTERFACE sqlite_orm/include)
-if(NOT TARGET sqlite3)
-  add_library(sqlite3 INTERFACE)
-  pkg_check_modules(SQLITE3 REQUIRED IMPORTED_TARGET sqlite3)
-  target_link_libraries(sqlite3 INTERFACE PkgConfig::SQLITE3)
+if(WITH_PEERSTATS)
+  add_library(sqlite_orm INTERFACE)
+  target_include_directories(sqlite_orm SYSTEM INTERFACE sqlite_orm/include)
+  if(NOT TARGET sqlite3)
+    add_library(sqlite3 INTERFACE)
+    pkg_check_modules(SQLITE3 REQUIRED IMPORTED_TARGET sqlite3)
+    target_link_libraries(sqlite3 INTERFACE PkgConfig::SQLITE3)
+  endif()
+  target_link_libraries(sqlite_orm INTERFACE sqlite3)
 endif()
-target_link_libraries(sqlite_orm INTERFACE sqlite3)
 
 add_library(uvw INTERFACE)
 target_include_directories(uvw INTERFACE uvw/src)