From 3d13492eac641f755ad13291560b91113c2a61d9 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Wed, 20 Apr 2016 13:18:56 -0400
Subject: FindFLEX: Fix FLEX_TARGET macro for special characters in path
 (#16072)

Use the VERBATIM option to add_custom_command so that the command is
escaped correctly.
---
 Modules/FindFLEX.cmake | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Modules/FindFLEX.cmake b/Modules/FindFLEX.cmake
index ca66493..b50c74a 100644
--- a/Modules/FindFLEX.cmake
+++ b/Modules/FindFLEX.cmake
@@ -185,8 +185,8 @@ if(FLEX_EXECUTABLE)
       endif()
 
       add_custom_command(OUTPUT ${FLEX_TARGET_outputs}
-        COMMAND ${FLEX_EXECUTABLE}
-        ARGS ${FLEX_EXECUTABLE_opts} -o${Output} ${Input}
+        COMMAND ${FLEX_EXECUTABLE} ${FLEX_EXECUTABLE_opts} -o${Output} ${Input}
+        VERBATIM
         DEPENDS ${Input}
         COMMENT "[FLEX][${Name}] Building scanner with flex ${FLEX_VERSION}"
         WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
-- 
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