Build SDL2 AGAR readme Linux

Ubuntu install notes

Install gcc dev essentials
sudo apt-get update
sudo apt-get upgrade
sudo apt-get install build-essential

Install vscode

Add c/c++ Intellisense support to vscode

Install SDL2 libraries including dev versions

Install freetype
sudo apt install libfreetype6-dev

Install libtool
sudo apt-get install libtool-bin

Install AGAR as per Linux instructions on AGAR site

Copy the AGAR-1.5.0 Diff Files to the corresponding AGAR-1.5.0 directories

If building a strict AGAR-1.5.0 compatible version do not copy the optional files in the GUI/Optional folder
to the gui folder.

If support for Widget Drawn event/callbacks is required copy the optional widget.c/h files to the gui folder.

If SDL2 fast Texture map support is wanted then copy the remained of the optional files to the gui folder.
(This feature will require you to recompile/build all AGAR applications against the new AGAR libraries)

edit mk/build.lib.mk add --tag CC to options
	LIBTOOLOPTS?=	--tag CC	--quiet

./configure --enable-debug --with-sdl2 --without-sdl --with-libtool=/usr/bin/libtool

make depend all
sudo make install

tests

Change SDL require entry in tests/agarsdl/configure.in
	REQUIRE(sdl, 2.0.8)

In all tests/subdirs/configure and configure.in scripts remove the -Werror option

./configure
make depend all

./agartest

./agartest -d sdl2