> I hopefully fixed the waring (narrowing down from size_t to int). Please double check with your compiler.

Nope, it turns out complain is about the read() size argument, they really really really want it to be 
size_t.

Looks like correct sequence is:

size_t size = file_size_somehow();
char* buf = (char*)malloc(size+1);
ssize_t rd = read(fd, buf, size);
if (rd < 0) { complain(); return; } // read() error
if ((size_t)rd != size) { complain(); return; } // cast to size_t is safe after we know rd >= 0
buf[rd] = 0; // make sure data is NUL terminated

What a mess. I want my UNIX V7 and K&R C back!

Perhaps I should add in system.cxx - ss_read_file(const char* filename, std::vector<char> &data);

Fixed it in mscb.cxx, odbedit.cxx, mhttpd.cxx and msequencer.cxx, commited, pushed.

U-24 builds without warnings. fwew...

K.O.