From 15307c7e2cc96779457ab5528d28f2a026d2f06e Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sun, 8 Feb 2026 01:52:40 +0000
Subject: [PATCH 1/2] Initial plan


From 378b5cf10143667a37a9da17c3b8c27cbf4d75b7 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sun, 8 Feb 2026 01:56:07 +0000
Subject: [PATCH 2/2] Fix nlohmann_json linkage from PRIVATE to PUBLIC

Change target_link_libraries for nlohmann_json from PRIVATE to PUBLIC
since nlohmann::json types are exposed in public headers (casbin_types.h,
evaluator.h, and data_types.h). This ensures proper propagation of the
dependency to downstream consumers and prevents ABI mismatches when
multiple versions of nlohmann_json are present.

Co-authored-by: hsluoyz <3787410+hsluoyz@users.noreply.github.com>
---
 casbin/CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/casbin/CMakeLists.txt b/casbin/CMakeLists.txt
index cc51e164..4ba5d115 100644
--- a/casbin/CMakeLists.txt
+++ b/casbin/CMakeLists.txt
@@ -77,7 +77,7 @@ add_library(casbin STATIC ${CASBIN_SOURCE_FILES})
 
 target_precompile_headers(casbin PRIVATE ${CASBIN_INCLUDE_DIR}/casbin/pch.h)
 target_include_directories(casbin PRIVATE ${CASBIN_INCLUDE_DIR})
-target_link_libraries(casbin PRIVATE nlohmann_json::nlohmann_json)
+target_link_libraries(casbin PUBLIC nlohmann_json::nlohmann_json)
 
 set_target_properties(casbin PROPERTIES 
     PREFIX ""