Update Yasm to 1.2.0 (Yasm Part 3/3)

third_party/yasm/patches/03_macho_objfmt_private.patch

-Index: modules/objfmts/macho/macho-objfmt.c
-===================================================================
---- modules/objfmts/macho/macho-objfmt.c        (revision 73577)
-+++ modules/objfmts/macho/macho-objfmt.c        (working copy)
-@@ -922,7 +922,26 @@
-             }
-             /*printf("common symbol %s val %lu\n", name, yasm_intnum_get_uint(val));*/
-         } else if (vis & YASM_SYM_GLOBAL) {
--            n_type |= N_EXT;
-+            yasm_valparamhead *valparams =
-+                yasm_symrec_get_objext_valparams(sym);
-+
-+            struct macho_global_data {
-+                unsigned long flag; /* N_PEXT */
-+            } data;
-+
-+            data.flag = 0;
-+
-+            if (valparams) {
-+                static const yasm_dir_help help[] = {
-+                    { "private_extern", 0, yasm_dir_helper_flag_set,
-+                      offsetof(struct macho_global_data, flag), N_PEXT },
-+                };
-+                yasm_dir_helper(sym, yasm_vps_first(valparams),
-+                                yasm_symrec_get_decl_line(sym), help, NELEMS(help),
-+                                &data, yasm_dir_helper_valparam_warn);
-+            }
-+
-+            n_type |= N_EXT | data.flag;
-         }
- 
-         localbuf = info->buf;