upd building docs

BUILDING.md

@@ -5,7 +5,7 @@
 
 This guide will help you build the project on your local machine. The process will require you to provide two items:
 - A decompressed ROM of the US version of the game.
-- An elf file created from [this commit](https://github.com/zeldaret/mm/tree/23beee0717364de43ca9a82957cc910cf818de90) of the Majora's Mask decompilation.
+- An elf file created from [this commit](https://github.com/zeldaret/mm/tree/45ae63ccc550ea29f475669a87f7f8ac681a6b29) of the Majora's Mask decompilation.
 
 These steps cover: acquiring these, running the required processes and finally building the project.
 
@@ -41,16 +41,7 @@ choco install make
 ```
 
 ## 3. Creating the ELF file & decompressed ROM
-You will need to build [this commit](https://github.com/zeldaret/mm/tree/23beee0717364de43ca9a82957cc910cf818de90) of the Majora's Mask decompilation. Follow their build instructions to generate the ELF file and decompressed ROM. However, while building you may get the following build error:
+You will need to build [this commit](https://github.com/zeldaret/mm/tree/45ae63ccc550ea29f475669a87f7f8ac681a6b29) of the Majora's Mask decompilation. For convenience you may also use `lib/mm-decomp` subfolder in this repository. Follow their build instructions to generate the ELF file and decompressed ROM.
-```bash
-RuntimeError: 'jr' instruction does not have an 'jump label' field
-```
-
-To fix this you will have to modify the problematic file `tools/disasm/disasm.py` at line 1115. This issue is due to a bug in this specific commit of the decomp project and will be resolved once Zelda64Recomp is updated to a more recent commit. To fix it, replace the line:
-```diff
-- elif insn.isJump():
-+ elif insn.isJumpWithAddress():
-```
 
 Upon successful build it will generate the two required files. Copy them to the root of the Zelda64Recomp repository:
 - `mm.us.rev1.rom_uncompressed.elf`