doc: Add MSYS2 build notes

Author: CyberTailor

doc/README.md

@@ -27,6 +27,7 @@ The following are developer notes on how to build Gridcoin on your native platfo
 - [OS X Build Notes](build-macos.md)
 - [Unix Build Notes](build-unix.md)
 - [Windows Build Notes](build-windows.md)
+- [Windows (MSYS2) Build Notes](build-msys2.md)
 - [FreeBSD Build Notes](build-freebsd.md)
 - [OpenBSD Build Notes](build-openbsd.md)
 

doc/build-msys2.md

@@ -0,0 +1,53 @@
+Windows (MSYS2) Build Notes
+===========================
+
+This guide describes how to build gridcoinresearchd, command-line utilities, and GUI on Windows.
+
+Preparing the Build
+-------------------
+
+First, install [MSYS2](https://www.msys2.org/). All commands below are supposed to be run in the **MSYS2 UCRT64** shell.
+
+Run the following to install the base dependencies for building:
+
+```bash
+pacman -S make ninja pactoys
+pacboy -S boost:p cmake:p curl:p libzip:p openssl:p toolchain:p
+pacboy -S qrencode:p qt5-base:p qt5-tools:p  # optional for the GUI
+```
+
+To Build
+--------
+
+### 1. Configuration
+
+To configure with gridcoinresearchd:
+
+```bash
+mkdir build && cd build
+cmake .. -DBUILD_SHARED_LIBS=OFF
+```
+
+To configure with GUI:
+
+```bash
+mkdir build && cd build
+cmake .. -DENABLE_GUI=ON -DBUILD_SHARED_LIBS=OFF
+```
+
+> [!NOTE]
+> See also: [CMake Build Options](cmake-options.md)
+
+### 2. Compile
+
+```bash
+cmake --build .  # use "-j N" here for N parallel jobs
+```
+
+### 3. Test
+
+```bash
+cmake .. -DENABLE_TESTS=ON
+cmake --build .
+ctest .
+```

doc/build-windows.md

@@ -1,7 +1,8 @@
 WINDOWS BUILD NOTES
 ====================
 
-> This document is outdated.
+> [!NOTE]
+> See also: [Windows (MSYS2) Build Notes](build-msys2.md)
 
 Below are some notes on how to build Gridcoin for Windows.
 

doc/cmake-options.md

@@ -23,6 +23,10 @@ ccmake .
 
   `cmake .. -DENABLE_PIE=ON -DUSE_ASM=OFF`
 
+* Build a static binary:
+
+  `cmake .. -DSTATIC_LIBS=ON -DSTATIC_RUNTIME=ON`
+
 * Build tests and docs, run `lupdate`:
 
   `cmake .. -DENABLE_DOCS=ON -DENABLE_TESTS=ON -DLUPDATE=ON`