Protect target JsonCpp::JsonCpp against multi-include (#1435)

* Protect target JsonCpp::JsonCpp against multi-include Fixes #1356 * Simplify (@BillyDonahue) --------- Co-authored-by: Jordan Bayles <[email protected]>
open-source-parsers · Sep 10, 2024 · fa0dff1 · fa0dff1
1 parent 48d2e10
commit fa0dff1
Showing 1 changed file with 9 additions and 7 deletions.
diff --git a/jsoncpp-namespaced-targets.cmake b/jsoncpp-namespaced-targets.cmake
@@ -1,7 +1,9 @@
-if (TARGET jsoncpp_static)
-    add_library(JsonCpp::JsonCpp INTERFACE IMPORTED)
-    set_target_properties(JsonCpp::JsonCpp PROPERTIES INTERFACE_LINK_LIBRARIES "jsoncpp_static")
-elseif (TARGET jsoncpp_lib)
-    add_library(JsonCpp::JsonCpp INTERFACE IMPORTED)
-    set_target_properties(JsonCpp::JsonCpp PROPERTIES INTERFACE_LINK_LIBRARIES "jsoncpp_lib")
-endif ()
+if (NOT TARGET JsonCpp::JsonCpp)
+    if (TARGET jsoncpp_static)
+        add_library(JsonCpp::JsonCpp INTERFACE IMPORTED)
+        set_target_properties(JsonCpp::JsonCpp PROPERTIES INTERFACE_LINK_LIBRARIES "jsoncpp_static")
+    elseif (TARGET jsoncpp_lib)
+        add_library(JsonCpp::JsonCpp INTERFACE IMPORTED)
+        set_target_properties(JsonCpp::JsonCpp PROPERTIES INTERFACE_LINK_LIBRARIES "jsoncpp_lib")
+    endif ()
+endif ()