compatibility with older CMake versions

2021-03-25 17:14:57 -04:00
parent 28ac1fddc7
commit 4efe60ec43
1 changed files with 1 additions and 1 deletions
--- a/unittest/CMakeLists.txt
+++ b/unittest/CMakeLists.txt
@ -2,7 +2,7 @@ include(GTest)

 # check if we can run the compiled executable and whether it prints
 # the LAMMPS version header in the output for an empty input
-file(TOUCH ${CMAKE_CURRENT_BINARY_DIR}/in.empty)
+file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/in.empty "")
 add_test(NAME RunLammps
         COMMAND $<TARGET_FILE:lmp> -log none -echo none -in in.empty
         WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})