From de6b59cd2089917410af386ca709be5563e24186 Mon Sep 17 00:00:00 2001
From: Djordje Todorovic <djordje.todorovic@rt-rk.com>
Date: Thu, 3 Oct 2019 13:18:14 +0000
Subject: [PATCH] [llvm-locstats] Copy the script only when needed; NFC

llvm-svn: 373596
---
 llvm/utils/llvm-locstats/CMakeLists.txt | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/llvm/utils/llvm-locstats/CMakeLists.txt b/llvm/utils/llvm-locstats/CMakeLists.txt
index aa5aeca149f0..a919023e141e 100644
--- a/llvm/utils/llvm-locstats/CMakeLists.txt
+++ b/llvm/utils/llvm-locstats/CMakeLists.txt
@@ -1,7 +1,12 @@
 if (LLVM_BUILD_UTILS AND LLVM_BUILD_TOOLS)
-  add_custom_target(llvm-locstats ALL
-    COMMAND  ${CMAKE_COMMAND} -E copy ${LLVM_MAIN_SRC_DIR}/utils/llvm-locstats/llvm-locstats.py ${LLVM_TOOLS_BINARY_DIR}/llvm-locstats
+  add_custom_command(
+    OUTPUT ${LLVM_TOOLS_BINARY_DIR}/llvm-locstats
+    DEPENDS ${LLVM_MAIN_SRC_DIR}/utils/llvm-locstats/llvm-locstats.py
+    COMMAND ${CMAKE_COMMAND} -E copy ${LLVM_MAIN_SRC_DIR}/utils/llvm-locstats/llvm-locstats.py ${LLVM_TOOLS_BINARY_DIR}/llvm-locstats
     COMMENT "Copying llvm-locstats into ${LLVM_TOOLS_BINARY_DIR}"
     )
+  add_custom_target(llvm-locstats ALL
+    DEPENDS ${LLVM_TOOLS_BINARY_DIR}/llvm-locstats
+    )
   set_target_properties(llvm-locstats PROPERTIES FOLDER "Tools")
 endif()