Compiler Toolchain and bin file

[yuregir]

Hello,

I am having some problems with compiling the code.
I am using Mac and brew to setup the toolchain.
I am not able to compile using 4.9.2 compiler which isnt have attiny definitions, the minimum version I can use is 5.3 compiler, when I am using 5.3 compiler code compiles succesfully but, rs485 tranciever enable pin stuck at transmit mode so sensor is not able to receive any modbus data.
There is something I am missing but coulnt find root of the issue
I was wondering anyone can help me on toolchain setup. Or is there any precompiled binary ?

Regards