ROOT build suddenly failing (Ubuntu 16.04 LTS)

ferhue · October 11, 2016, 4:58pm

Dom:

Interestingly, trying to build a newer commit (baf4ba4d9028d76db906a495132aa486500aab7d) using only a single core (i.e. running “make” instead of “make -j 5” to exclude possible, if unlikely, race conditions) results in a new error message:

[ 14%] Building CXX object interpreter/cling/lib/Interpreter/CMakeFiles/obj.clingInterpreter.dir/InvocationOptions.cpp.o In file included from /home/xxxxxx/.local/opt/root_source/interpreter/cling/lib/Interpreter/InvocationOptions.cpp:13:0: /home/xxxxxx/.local/opt/root_source/interpreter/cling/../llvm/src/tools/clang/include/clang/Driver/Options.h:41:36: fatal error: clang/Driver/Options.inc: No such file or directory compilation terminated. interpreter/cling/lib/Interpreter/CMakeFiles/obj.clingInterpreter.dir/build.make:643: recipe for target 'interpreter/cling/lib/Interpreter/CMakeFiles/obj.clingInterpreter.dir/InvocationOptions.cpp.o' failed make[2]: *** [interpreter/cling/lib/Interpreter/CMakeFiles/obj.clingInterpreter.dir/InvocationOptions.cpp.o] Error 1 CMakeFiles/Makefile2:8444: recipe for target 'interpreter/cling/lib/Interpreter/CMakeFiles/obj.clingInterpreter.dir/all' failed make[1]: *** [interpreter/cling/lib/Interpreter/CMakeFiles/obj.clingInterpreter.dir/all] Error 2 Makefile:149: recipe for target 'all' failed make: *** [all] Error 2

See the final explanation for the mysterious Options.inc problem here: