Dear all, Not sure how long this has been going on, but I was just trying to refresh my MonetDB installation (compiled from Mercurial source code), but it failed with the following errors: In file included from /Users/jennie/monet/Mar2018/sql/backends/monet5/UDF/pyapi3/pyapi3.c:13: /Users/jennie/monet/Mar2018/sql/backends/monet5/UDF/pyapi3/../pyapi/pyapi.c:968:18: error: assigning to 'char *' from 'const char *' discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers] retnames[i] = PyUnicode_AsUTF8(colname); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~ /Users/jennie/monet/Mar2018/sql/backends/monet5/UDF/pyapi3/../pyapi/pyapi.c:1382:19: error: assigning to 'char *' from 'const char *' discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers] py_error_string = PyString_AS_STRING(error); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~ Mac OS 10.13.5 Darwin Kernel Version 17.6.0 Happens with both Mar2018 and default branch Does anyone know how to fix these errors and get MonetDB compiled? Thanks in advance! Regards, Jennie