[FIXUP] cmake: Fix check_evhttp_connection_get_peer macro

cmake/module/AddLibeventIfNeeded.cmake

@@ -2,9 +2,11 @@
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
+# Check whether evhttp_connection_get_peer expects const char**.
+# See https://github.com/libevent/libevent/commit/a18301a2bb160ff7c3ffaf5b7653c39ffe27b385
 macro(check_evhttp_connection_get_peer target)
-  # Check whether evhttp_connection_get_peer expects const char**.
-  # Fail if neither are available.
+  cmake_push_check_state(RESET)
+  set(CMAKE_REQUIRED_LIBRARIES ${target})
   check_cxx_source_compiles("
     #include <cstdint>
     #include <event2/http.h>
@@ -18,6 +20,7 @@ macro(check_evhttp_connection_get_peer target)
     }
     " HAVE_EVHTTP_CONNECTION_GET_PEER_CONST_CHAR
   )
+  cmake_pop_check_state()
   target_compile_definitions(${target} INTERFACE
     $<$<BOOL:${HAVE_EVHTTP_CONNECTION_GET_PEER_CONST_CHAR}>:HAVE_EVHTTP_CONNECTION_GET_PEER_CONST_CHAR=1>
   )
@@ -38,14 +41,20 @@ function(add_libevent_if_needed)
   endif()
 
   include(CrossPkgConfig)
-  cross_pkg_check_modules(libevent REQUIRED libevent>=${libevent_minimum_version} IMPORTED_TARGET GLOBAL)
+  cross_pkg_check_modules(libevent
+    REQUIRED IMPORTED_TARGET GLOBAL
+    libevent>=${libevent_minimum_version}
+  )
   check_evhttp_connection_get_peer(PkgConfig::libevent)
   target_link_libraries(PkgConfig::libevent INTERFACE
     $<$<BOOL:${MINGW}>:iphlpapi;ssp;ws2_32>
   )
   add_library(libevent::libevent ALIAS PkgConfig::libevent)
 
   if(NOT WIN32)
-    cross_pkg_check_modules(libevent_pthreads REQUIRED libevent_pthreads>=${libevent_minimum_version} IMPORTED_TARGET)
+    cross_pkg_check_modules(libevent_pthreads
+      REQUIRED IMPORTED_TARGET GLOBAL
+      libevent_pthreads>=${libevent_minimum_version}
+    )
   endif()
 endfunction()