[llvm] r373596 - [llvm-locstats] Copy the script only when needed; NFC

[Djordje Todorovic via llvm-commits]

Author: djtodoro
Date: Thu Oct  3 06:18:14 2019
New Revision: 373596

URL: http://llvm.org/viewvc/llvm-project?rev=373596&view=rev
Log:
[llvm-locstats] Copy the script only when needed; NFC

Modified:
    llvm/trunk/utils/llvm-locstats/CMakeLists.txt

Modified: llvm/trunk/utils/llvm-locstats/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/llvm-locstats/CMakeLists.txt?rev=373596&r1=373595&r2=373596&view=diff
==============================================================================
--- llvm/trunk/utils/llvm-locstats/CMakeLists.txt (original)
+++ llvm/trunk/utils/llvm-locstats/CMakeLists.txt Thu Oct  3 06:18:14 2019
@@ -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()