Edit meson scripts to compile for Android

targets/app/meson.build

@@ -29,7 +29,7 @@ platform_sources = run_command(
 ).stdout().strip().split('\n')
 
 # linux-specific files
-if host_machine.system() == 'linux'
+if host_machine.system() == 'linux' or host_machine.system() == 'android'
   platform_sources += run_command(
     'sh',
     '-c', 'find "'

targets/minecraft/meson.build

@@ -64,8 +64,16 @@ lib_minecraft = static_library('minecraft',
   cpp_args : global_cpp_args + global_cpp_defs,
 )
 
+_inc_dir = '../../' / inc_dir
+
 zlib_dep = dependency('zlib')
-crypto_dep = dependency('libcrypto')  # for MD5 in Hasher.cpp on Linux
+if host_machine.system() == 'android'
+  crypto_dep = declare_dependency(
+    dependencies: cc.find_library('crypto', dirs: lib_dir, required: true ),
+    include_directories: _inc_dir)
+else
+ crypto_dep = dependency('libcrypto')  # for MD5 in Hasher.cpp on Linux
+endif
 
 minecraft_dep = declare_dependency(
   link_with : lib_minecraft,

targets/platform/meson.build

@@ -1,4 +1,5 @@
 platform_inc = include_directories('.')
+_inc_dir = '../../' / inc_dir
 _threads = dependency('threads')
 
 lib_platform_core = static_library('platform_core',
@@ -14,16 +15,39 @@ platform_dep = declare_dependency(
 )
 
 # SDL2-based platform implementations (formerly 4J.* modules)
-_sdl2 = dependency('sdl2')
+if host_machine.system() == 'android'
+  _sdl2 = declare_dependency(
+  dependencies: cc.find_library('SDL2', dirs: lib_dir, required: true ), 
+  include_directories: _inc_dir)
+else
+  _sdl2 = dependency('sdl2')
+endif
 _defs = []
 
 if get_option('renderer') == 'gles'
-  _gl = dependency('glesv2', required: true)
+  if host_machine.system() == 'android'
+    _gl = cc.find_library('GLESv3', required: true )
+    _egl  = cc.find_library('EGL', required: true )
+  else
+    _gl = dependency('glesv2', required: true)
+  endif
   _defs += ['-DGLES']
 else
   _gl = dependency('gl', required: true)
 endif
 
+deps = [
+  _sdl2, 
+  _gl, 
+  _threads, 
+  glm_dep,
+  stb_dep,
+]
+
+if host_machine.system() == 'android'
+  deps += _egl
+endif
+
 sdl2_sources = files(
   'sdl2/Input.cpp',
   'sdl2/Profile.cpp',
@@ -35,7 +59,7 @@ sdl2_sources = files(
 lib_platform_sdl2 = static_library('platform_sdl2',
   sdl2_sources,
   include_directories: [platform_inc, include_directories('sdl2')],
-  dependencies: [_sdl2, _gl, _threads, glm_dep, stb_dep],
+  dependencies: deps,
   cpp_args: _defs + global_cpp_args + global_cpp_defs,
 )
 
@@ -44,7 +68,7 @@ lib_platform_sdl2 = static_library('platform_sdl2',
 render_dep = declare_dependency(
   link_with: lib_platform_sdl2,
   include_directories: [platform_inc, include_directories('sdl2')],
-  dependencies: [_sdl2, _gl, _threads, glm_dep],
+  dependencies: deps,
 )
 input_dep = render_dep
 profile_dep = render_dep