Add a dependency for the VST3 SDK

README.md

@@ -22,6 +22,7 @@ imcomplete list of things that still have to be done before this can be used:
 - Mention that this update will break all existing symlinks and that the old
   `libyabridge.so` file should be removed when upgrading.
 - Update all the AUR packages.
+- Add CMake to the AUR package dependencies and to our Docker images
 
 ![yabridge screenshot](https://raw.githubusercontent.com/robbert-vdh/yabridge/master/screenshot.png)
 
@@ -44,6 +45,7 @@ imcomplete list of things that still have to be done before this can be used:
 - [Performance tuning](#performance-tuning)
 - [Runtime dependencies and known issues](#runtime-dependencies-and-known-issues)
 - [Building](#building)
+  - [Building without VST3 support](#building-without-vst3-support)
   - [32-bit bitbridge](#32-bit-bitbridge)
 - [Debugging](#debugging)
   - [Attaching a debugger](#attaching-a-debugger)
@@ -515,6 +517,7 @@ the following dependencies:
 - A Wine installation with `winegcc` and the development headers. The latest
   commits contain a workaround for a winelib [compilation
   issue](https://bugs.winehq.org/show_bug.cgi?id=49138) with Wine 5.7+.
+- CMake for VST3 support[\*](#building-without-vst3-support)
 - Boost version 1.66 or higher[\*](#building-ubuntu-18.04)
 - libxcb
 
@@ -545,6 +548,18 @@ After you've finished building you can follow the instructions under the
   would need to be installed to compile on Ubuntu 18.04.
 </sup>
 
+### Building without VST3 support
+
+As mentioned above, building the VST3 SDK requires CMake. We might be able to
+easily replace the default build definitions for the SDK with a simple
+`meson.build` file in the future, but for now if you wish to build yabridge
+without VST3 support then you can disable it as follows:
+
+```shell
+# Disable VST3 support, removing the dependency on CMake
+meson configure build -Dwith-vst3=false
+```
+
 ### 32-bit bitbridge
 
 It is also possible to compile a host application for yabridge that's compatible

meson.build

@@ -37,6 +37,7 @@ compiler_options = [
 with_bitbridge = get_option('with-bitbridge')
 with_static_boost = get_option('with-static-boost')
 with_winedbg = get_option('with-winedbg')
+with_vst3 = get_option('with-vst3')
 
 if with_bitbridge
   compiler_options += '-DWITH_BITBRIDGE'
@@ -68,6 +69,15 @@ tomlplusplus_dep = subproject('tomlplusplus', version : '2.1.0').get_variable('t
 # The built in threads dependency does not know how to handle winegcc
 wine_threads_dep = declare_dependency(link_args : '-lpthread')
 xcb_dep = dependency('xcb')
+if with_vst3
+  cmake = import('cmake')
+  vst3_sdk = cmake.subproject('vst3')
+
+  # TODO: Assert version '3.7.1', somehow
+  # TODO: vst3_xxx_dep = vst3_sdk.dependency('xxx')
+else
+  message('VST3 support has been disabled')
+endif
 
 include_dir = include_directories('src/include')
 

meson_options.txt

@@ -12,6 +12,13 @@ option(
   description : 'Enable static linking for Boost. Needed when distributing the binaries to other systems.'
 )
 
+option(
+  'with-vst3',
+  type : 'boolean',
+  value : true,
+  description : 'Whether to build the VST3 version of yabridge. This requires CMake to be installed.'
+)
+
 option(
   'with-winedbg',
   type : 'boolean',

subprojects/.gitignore

@@ -2,3 +2,4 @@
 
 # The above pattern doesn't match submodules
 /tomlplusplus
+/vst3

subprojects/vst3.wrap

@@ -0,0 +1,7 @@
+[wrap-git]
+url = https://github.com/robbert-vdh/vst3sdk.git
+# This is VST3 SDK v3.7.1_build_50 with the documentation and VSTGUI submodules
+# removed
+revision = 2a1a230d45766532360a2f432083f0795f2b0d93
+clone-recursive = true
+depth = 1