Start migration to meson buildsystem

As of right now, new buildsystem is capable of creating clean,
featureful builds on Linux x86_64 - but these are not equivalent of all
that are exposed via autoconf yet. As new features will be added, it
will gradually replace Autotools and build.sh.

Preserve our existing structure of building a static library per
"module", and then linking them together to create dosbox binary.

Unlike automake, we don't need to create a library per subdirectory -
it's entirely our pragmatic choice.  As a result, we don't have multiple
sub-libraries for e.g. hardware module: all files inside are handled by
a single meson.build file (we can simplify this even further and
make the project structure even flatter or deeper as needed.

Create config.h.in template file - meson turns it into our new config.h
file, filling it with information detected in meson.build scripts.

Create new file for main function - this way it'll be easier to ignore
this file for gtest builds (which will have their own main functions).
Old main was renamed to sdl_main and is now declared as the very first
function in dosbox.h file.

Update elementary build documentation in README.md and CONTRIBUTING.md.

Remove majority of content in the INSTALL file.  Information in that
file was either outdated or is now automatically verified by meson.build
script.

1 files changed, 24 insertions, 0 deletions

diff --git a/meson_options.txt b/meson_options.txt
new file mode 100644
index 000000000..9e2b7b6a7
--- /dev/null
+++ b/meson_options.txt
@@ -0,0 +1,24 @@
+option('use_sdl2_net',
+       type : 'boolean',
+       value : true,
+       description : 'Enable networking features via SDL2_net (modem, ipx)')
+
+option('use_opengl',
+       type : 'boolean',
+       value : true,
+       description : 'Enable OpenGL support')
+
+option('use_fluidsynth',
+       type : 'boolean',
+       value : true,
+       description : 'Enable built-in MIDI support via FluidSynth')
+
+option('use_opusfile',
+       type : 'boolean',
+       value : true,
+       description : 'Enable Opus codec for CD-DA emulation')
+
+option('use_png',
+       type : 'boolean',
+       value : true,
+       description : 'Enable saving screenshots in .png format')