only include libraries if they dont already exist

oxen-io · Sep 3, 2023 · 7e216fd · 7e216fd
1 parent fd48684
commit 7e216fd
Showing 1 changed file with 24 additions and 14 deletions.
diff --git a/external/CMakeLists.txt b/external/CMakeLists.txt
@@ -1,14 +1,22 @@
-set(CPR_USE_SYSTEM_CURL ON CACHE BOOL "" FORCE)
-add_subdirectory(cpr)
-set(SECP256K1_ENABLE_MODULE_RECOVERY ON CACHE BOOL "" FORCE)
-set(SECP256K1_VALGRIND OFF CACHE BOOL "" FORCE)
-set(SECP256K1_BUILD_BENCHMARK OFF CACHE BOOL "" FORCE)
-set(SECP256K1_BUILD_TESTS OFF CACHE BOOL "" FORCE)
-set(SECP256K1_BUILD_EXHAUSTIVE_TESTS OFF CACHE BOOL "" FORCE)
-set(SECP256K1_BUILD_CTIME_TESTS OFF CACHE BOOL "" FORCE)
-set(SECP256K1_BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
-add_subdirectory(secp256k1)
-add_subdirectory(Catch2)
+if(NOT TARGET cpr)
+    set(CPR_USE_SYSTEM_CURL ON CACHE BOOL "" FORCE)
+    add_subdirectory(cpr)
+endif()
+
+if(NOT TARGET secp256k1)
+    set(SECP256K1_ENABLE_MODULE_RECOVERY ON CACHE BOOL "" FORCE)
+    set(SECP256K1_VALGRIND OFF CACHE BOOL "" FORCE)
+    set(SECP256K1_BUILD_BENCHMARK OFF CACHE BOOL "" FORCE)
+    set(SECP256K1_BUILD_TESTS OFF CACHE BOOL "" FORCE)
+    set(SECP256K1_BUILD_EXHAUSTIVE_TESTS OFF CACHE BOOL "" FORCE)
+    set(SECP256K1_BUILD_CTIME_TESTS OFF CACHE BOOL "" FORCE)
+    set(SECP256K1_BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
+    add_subdirectory(secp256k1)
+endif()
+
+if(NOT TARGET Catch2)
+    add_subdirectory(Catch2)
+endif()
 
 # RLPValue is built using autotools
 include(ExternalProject)
@@ -38,6 +46,8 @@ add_dependencies(rlpvalue librlpvalue)
 set_target_properties(rlpvalue PROPERTIES IMPORTED_LOCATION ${RLP_SHARED_LIB})
 set_target_properties(rlpvalue PROPERTIES INTERFACE_INCLUDE_DIRECTORIES ${RLP_INCLUDES})
 
-set(JSON_BuildTests OFF CACHE INTERNAL "")
-set(JSON_MultipleHeaders ON CACHE BOOL "") # Allows multi-header nlohmann use
-add_subdirectory(json EXCLUDE_FROM_ALL)
+if(NOT TARGET nlohmann_json)
+    set(JSON_BuildTests OFF CACHE INTERNAL "")
+    set(JSON_MultipleHeaders ON CACHE BOOL "") # Allows multi-header nlohmann use
+    add_subdirectory(json EXCLUDE_FROM_ALL)
+endif()