Revert "Get rid of all traces of pthreads in Wine"

This reverts commit e9af76d21e.

Without this the event loop will just not run, not sure why. This needs
some more investigation.

meson.build

@@ -65,6 +65,8 @@ bitsery_dep = subproject('bitsery', version : '5.2.0').get_variable('bitsery_dep
 function2_dep = subproject('function2', version : '4.1.0').get_variable('function2_dep')
 threads_dep = dependency('threads')
 tomlplusplus_dep = subproject('tomlplusplus', version : '2.1.0').get_variable('tomlplusplus_dep')
+# The built in threads dependency does not know how to handle winegcc
+wine_threads_dep = declare_dependency(link_args : '-lpthread')
 xcb_dep = dependency('xcb')
 
 include_dir = include_directories('src/include')
@@ -120,10 +122,6 @@ group_host_sources = host_sources + [
   'src/wine-host/group-host.cpp',
 ]
 
-# Get rid of all traces of pthreads in Boost.Asio since this will not play
-# nicely with Wine's own thread system
-compiler_options += ['-DBOOST_ASIO_DISABLE_THREADS', '-DBOOST_ASIO_DISABLE_STD_THREAD']
-
 executable(
   individual_host_name_64bit,
   individual_host_sources,
@@ -135,6 +133,7 @@ executable(
     bitsery_dep,
     function2_dep,
     tomlplusplus_dep,
+    wine_threads_dep,
     xcb_dep
   ],
   cpp_args : compiler_options + ['-m64'],
@@ -152,6 +151,7 @@ executable(
     bitsery_dep,
     function2_dep,
     tomlplusplus_dep,
+    wine_threads_dep,
     xcb_dep
   ],
   cpp_args : compiler_options + ['-m64'],
@@ -197,6 +197,7 @@ if with_bitbridge
       bitsery_dep,
       function2_dep,
       tomlplusplus_dep,
+      wine_threads_dep,
       xcb_dep
     ],
     cpp_args : compiler_options + ['-m32'],
@@ -214,6 +215,7 @@ if with_bitbridge
       bitsery_dep,
       function2_dep,
       tomlplusplus_dep,
+      wine_threads_dep,
       xcb_dep
     ],
     cpp_args : compiler_options + ['-m32'],