MSVC is a nimrod. (All verions 10.0 through 14.1)

"(4074): error C4146: unary minus operator applied to unsigned type, result still unsigned"
So what?  Many programmers are much better than the typical Microsoft coder.
The C standard GUARANTEES that unsigned arithmetic uses two's complement,
ignores overflow, and the result is what the hardware adder produces.
	modified:   p_lx_elf.cpp

src/p_lx_elf.cpp

@@ -4071,7 +4071,7 @@ void PackLinuxElf64::unpack(OutputFile *fo)
                     set_te64(&sym->st_value, symval - asl_delta);
                 }
                 if (Elf64_Sym::SHN_ABS == symsec && xct_off <= symval) {
-                    adjABS(sym, -asl_delta);
+                    adjABS(sym, 0u - asl_delta);
                 }
             }
         }