From bf2244681b2cbbd2684187e628e00c0600ae4122 Mon Sep 17 00:00:00 2001
From: Hong Xu <hong@topbug.net>
Date: Sun, 7 Jul 2019 15:59:47 -0700
Subject: CheckSymbolExists: Add examples for check_symbol_exists

Add examples in `CheckCXXSymbolExists` too.

Co-Author: Brad King <brad.king@kitware.com>
---
 Modules/CheckSymbolExists.cmake | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'Modules/CheckSymbolExists.cmake')

diff --git a/Modules/CheckSymbolExists.cmake b/Modules/CheckSymbolExists.cmake
index b9ef8088f1..c2f488aee2 100644
--- a/Modules/CheckSymbolExists.cmake
+++ b/Modules/CheckSymbolExists.cmake
@@ -45,6 +45,17 @@ the way the check is run:
   command. See policy :policy:`CMP0075`.
 ``CMAKE_REQUIRED_QUIET``
   execute quietly without messages.
+
+For example:
+
+.. code-block:: cmake
+
+  include(CheckSymbolExists)
+
+  # Check for macro SEEK_SET
+  check_symbol_exists(SEEK_SET "stdio.h" HAVE_SEEK_SET)
+  # Check for function fopen
+  check_symbol_exists(fopen "stdio.h" HAVE_FOPEN)
 #]=======================================================================]
 
 include_guard(GLOBAL)
-- 
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