[Guide] Human way to compile altcoin for Ubuntu & Debian or Windows 32 & 64bit

Guide to compile Bitcoin | Dash | other altcoins and generate Ubuntu & Debian or Windows executables

I will presume that you are using Ubuntu 14.04.5 LTS because thats what I use to compile executables. You can also use other Linux distribution but this guide is related to debian based Linux system.

Reason for writing this Guide: The reason behind this guide are those who find it difficult to compile source code and generate windows .exe files, also covers the Ubuntu & debian build for bitcoin or dash (but process also follows the same for most of altcoins). I will try my best to keep it simple and humanly

Note: C++ compilers are memory-hungry. It is recommended to have at least 1.5 GB of memory available when compiling <coin>Core

Before We Build
You will only be able to build when dependencies are met!

Step1:
Build requirements:

sudo apt-get install build-essential libtool autotools-dev automake pkg-config libssl-dev libevent-dev bsdmainutils

Step2:
installing required Boost library files:

sudo apt-get install libboost-system-dev libboost-filesystem-dev libboost-chrono-dev libboost-program-options-dev libboost-test-dev libboost-thread-dev

Step3:
BerkeleyDB is required for the wallet:

sudo apt-get install software-properties-common
sudo add-apt-repository ppa:bitcoin/bitcoin
sudo apt-get update
sudo apt-get install libdb4.8-dev libdb4.8++-dev

Step 4
Miniupnpc:

sudo apt-get install libminiupnpc-dev

Step5:
Dependencies for the GUI Qt5

sudo apt-get install libqt5gui5 libqt5core5a libqt5dbus5 qttools5-dev qttools5-dev-tools libprotobuf-dev protobuf-compiler

sudo apt-get install libqrencode-dev

Step6
Cross-compilation

sudo apt-get install build-essential libtool autotools-dev automake pkg-config bsdmainutils curl

Buid requirements for 64bit windows:

sudo apt-get install g++-mingw-w64-x86-64 mingw-w64-x86-64-dev
Build requirements for 32bit windows:

sudo apt-get install g++-mingw-w64-i686 mingw-w64-i686-dev

Now that you have installed all the requirements the way it has been mentions in above steps, your compiler is ready to build the executable for Ubuntu & Debian or Window x86_32bit & x86_64bit.

Tobuild:
Note: clone coin repository separately for each build

For Ubuntu & Debian:

   git clone https://github.com/<username>/<repo.git>
   cd <repo>
   ./autogen.sh
   ./configure
   make
   make install # optional (it will install the binaries to /usr/local/bin

For Windows x86_32bit:

   git clone https://github.com/<username>/<repo.git>
   cd <repo>/depends
   make HOST=i686-w64-mingw32
   cd ..
   ./autogen.sh
   CONFIG_SITE=$PWD/depends/i686-w64-mingw32/share/config.site ./configure -with-gui --disable-zmq --prefix=/
   make

For Windows x86_64bit:

   git clone https://github.com/<username>/<repo.git>
   cd <repo>/depends
   make HOST=x86_64-w64-mingw32
   cd ..
   ./autogen.sh
   CONFIG_SITE=$PWD/depends/x86_64-w64-mingw32/share/config.site ./configure -with-gui --disable-zmq --prefix=/
   make

If all the steps above went as expected!, you now will have the executables ready for your desired operating system.
I hope this guide has helped you to learn some new things.

Feel free to ask questions if you don't understand a step, i will support you if needed

Cheers!
Dr4ge.