[d3d10] Enable native builds

This started working at some point... may as well!

src/d3d10/d3d10core.sym

@@ -0,0 +1,9 @@
+{
+  global:
+    D3D10CoreCreateDevice;
+    D3D10CoreGetVersion;
+    D3D10CoreRegisterLayers;
+
+  local:
+    *;
+};

src/d3d10/meson.build

@@ -4,12 +4,22 @@ d3d10_core_src = [
   'd3d10_core.cpp',
 ]
 
+d3d10_core_ld_args      = []
+d3d10_core_link_depends = []
+
+if platform != 'windows'
+  d3d10_core_ld_args      += [ '-Wl,--version-script', join_paths(meson.current_source_dir(), 'd3d10core.sym') ]
+  d3d10_core_link_depends += files('d3d10core.sym')
+endif
+
 d3d10_core_dll = shared_library('d3d10core'+dll_ext, d3d10_core_src, d3d10_core_res,
   name_prefix         : dxvk_name_prefix,
   dependencies        : [ d3d11_dep ],
   include_directories : dxvk_include_path,
   install             : true,
   vs_module_defs      : 'd3d10core'+def_spec_ext,
+  link_args           : d3d10_core_ld_args,
+  link_depends        : [ d3d10_core_link_depends ],
 )
 
 d3d10_core_dep = declare_dependency(

src/meson.build

@@ -20,14 +20,10 @@ if get_option('enable_d3d11')
 endif
 
 if get_option('enable_d3d10')
-  if platform == 'windows'
-    if not get_option('enable_d3d11')
-      error('D3D11 is required for D3D10.')
-    endif
-    subdir('d3d10')
-  else
-    warning('Building D3D10 is not supported on non-Windows platforms')
+  if not get_option('enable_d3d11')
+    error('D3D11 is required for D3D10.')
   endif
+  subdir('d3d10')
 endif
 
 if get_option('enable_d3d9')