DEPENDS ${LIBDEPS_TMP}
COMMENT "Updating ${LIBDEPS} if necessary...")
+# This must stop the build if find-cycles.pl returns error:
add_custom_command(OUTPUT ${FINAL_LIBDEPS}
- COMMAND ${PERL_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/find-cycles.pl < ${LIBDEPS} > ${FINAL_LIBDEPS} || ${CMAKE_COMMAND} -E remove -f ${FINAL_LIBDEPS}
+ COMMAND ${CMAKE_COMMAND} -E remove -f ${FINAL_LIBDEPS} ${FINAL_LIBDEPS}.tmp
+ COMMAND ${PERL_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/find-cycles.pl < ${LIBDEPS} > ${FINAL_LIBDEPS}.tmp
+ COMMAND ${CMAKE_COMMAND} -E copy ${FINAL_LIBDEPS}.tmp ${FINAL_LIBDEPS}
DEPENDS ${LIBDEPS}
COMMENT "Checking for cyclic dependencies between LLVM libraries.")