set(file_name ${CMAKE_CURRENT_SOURCE_DIR}/ConfigureFile-NewLineStyle.txt) function(test_eol style in out) file(WRITE ${file_name} "${in}") configure_file(${file_name} ${file_name}.out NEWLINE_STYLE ${style}) file(READ ${file_name}.out new HEX) if(NOT "${new}" STREQUAL "${out}") message(FATAL_ERROR "No ${style} line endings") endif() endfunction() test_eol(DOS "a\n" "610d0a") test_eol(WIN32 "b\n" "620d0a") test_eol(CRLF "c\n" "630d0a") test_eol(UNIX "d\n" "640a") test_eol(LF "e\n" "650a")