Update README.md

README.md

@@ -10,16 +10,41 @@ using just an easy config file.
      - Enable rich presence for your app and add some assets
 - Download the latest release of EasyRP from here https://github.com/Pizzabelly/EasyRP/releases 
 - Edit the config file with the information from your newly registered app
-- Run [easyrp binary](https://github.com/Pizzabelly/EasyRP/releases) (it should open a cmd window)
+- Run the [EasyRP executable](https://github.com/Pizzabelly/EasyRP/releases) (it should open a cmd window)
     - It *should* report errors from your config file (if there are any)
 - Discord should show the game on your profile
 	- if not, add the exe as a game on discord and the file path should change to your presence
 
 - You can edit the config any time while the program is running to change the presence (make sure to save the file)
 
-**Timestamps**
+**Timestamps**  
 The Start and End timestamps are in epoch/unix time. 
 Your desired values can be found [here](https://www.epochconverter.com/).
 For elapsed time set only the StartTimestamp. For remaining time set both.
 Though discord seems to only care about hours/minutes/seconds.
 As it doesnt go above 24hrs either way ¯\\\_(ツ)\_/¯
+
+**Building**  
+To build EasyRP from source you need the following
+  - any c++ compiler (cl, g++, clang++, etc)
+  - Meson
+  - Ninja
+  - CMake (for discord-rpc library)  
+
+Build discord-rpc  
+  - ``` git clone https://github.com/Pizzabelly/EasyRP --recurse-submodules ```  
+  - ``` cd EasyRP/discord-rpc ```  
+  - ``` mkdir build && cd build ```  
+  - ``` cmake .. -DENABLE_IO_THREAD=OFF ``` -DENABLE_IO_THREAD option will prevent a link error (see [#49](https://github.com/Pizzabelly/EasyRP/issues/49))  
+
+Now depending on your platform building the discord-rpc library will be different  
+  - Unix: ``` make ```  
+  - Windows (visual studio): ``` msbuild /p:Configuration=Release ```  
+  - Windows (mingw): ``` mingw32-make.exe ```  
+Now the library should be under src/[lib]discord-rpc.[lib|a], move that to the root of the EasyRP repo  
+
+To build EasyRP (in the root of the repo)  
+  - ``` meson --buildtype=release build ```  
+  - ``` ninja -C build ```  
+
+Now the EasyRP executable will be under the build directory!