Providing Third Party Libraries

Draco uses many TPLs. A couple are required and several are optional. The text below details building and installing these TPLs.
Prefer: TPL installs via vcpkg

Required TPLs (use vcpkg)

We use the already installed MSYS2 MinGW 32-bit terminal to build numdiff, so open this terminal from the Start Menu. (Note: at least for me, numdiff fails to compile under a MSYS2 MinGW 64-bit session).
Download the numdiff sources: wget https://bigsearcher.com/mirrors/nongnu/numdiff/numdiff-5.9.0.tar.gz
Expand the sources into a directory: tar -zxvf numdiff-5.9.0.tar.gz
Create a build directory: mkdir build && cd $_
Configure the project: ../numdiff-5.9.0/configure --prefix=/c/work/vendors64 --disable-nls --disable-gmp
Build and install: make -j 8 install
Check that the files are in the right location and work from a Windows command prompt:
- Start a windows command prompt: cmd
- cd /d c:\work\vendors64\bin
- numdiff --version

Clone from https://github.com/KineticTheory/parmetis
Start a _ x64 Native Tools Command Prompt for VS 2017_ from the Start Menu
Create a build directory:
- cd /d c:\work\vs2017
- mkdir parmetis
- cd parmetis
Configure the build directory

cmake -G "Visual Studio 15 2017 Win64" -DCMAKE_INSTALL_PREFIX=c:\work\vendors64\parmetis-4.3.0 \
   <path_to>/parmetis