From 01e968887c36ebcd04c31556075bae9826bc4a08 Mon Sep 17 00:00:00 2001
From: John Carlson <john.carlson@verizon.com>
Date: Wed, 16 Apr 2025 17:22:04 -0400
Subject: [PATCH] CMakeLists: include(CheckSymbolExists) so
 check_symbol_exists() will work

CMake 3.6 and earlier included this implicitly. Newer versions require
it to be explicit.
---
 CMakeLists.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e7038f89d73..c9bb2fcac5a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -112,6 +112,7 @@ endif()
 add_definitions(-DFLATBUFFERS_LOCALE_INDEPENDENT=$<BOOL:${FLATBUFFERS_LOCALE_INDEPENDENT}>)
 
 if(NOT WIN32)
+  include(CheckSymbolExists)
   check_symbol_exists(realpath "stdlib.h" HAVE_REALPATH)
   if(NOT HAVE_REALPATH)
     add_definitions(-DFLATBUFFERS_NO_ABSOLUTE_PATH_RESOLUTION)