21 host_os = host_machine.system()  variable
64 if host_os == 'windows' and add_languages('cpp', required: false, native: false)  variable
68 if host_os == 'darwin' and \  variable
305 if host_os == 'darwin'  variable
311 elif host_os == 'sunos'  variable
316 elif host_os == 'haiku'  variable
318 elif host_os == 'windows'  variable
441 if host_os == 'windows'  variable
515 if host_os == 'windows'  variable
688 if host_os == 'linux'  variable
735 if host_os == 'windows'  variable
747 elif host_os == 'darwin'  variable
751 elif host_os == 'sunos'  variable
755 elif host_os == 'haiku'  variable
759 elif host_os == 'openbsd'  variable
771 if get_option('kvm').allowed() and host_os == 'linux'  variable
774 if get_option('whpx').allowed() and host_os == 'windows'  variable
793 if host_os == 'netbsd'  variable
941 if host_os == 'windows' and get_option('prefer_static')  variable
1267 have_vhost_user_gpu = have_tools and host_os == 'linux' and pixman.found()  variable
1292 if host_os == 'linux' and (have_system or have_tools)  variable
1300 if host_os == 'linux' and have_tools and get_option('mpath').allowed()  variable
1371   curses_dep_list = host_os == 'windows' ? ['ncurses', 'ncursesw'] : ['ncursesw']  variable
1617   elif host_os == 'netbsd'  variable
2209 if host_os == 'linux'  variable
2216 elif host_os == 'freebsd' and cc.has_header_symbol('ufs/ffs/fs.h', 'UFSSUSPEND')  variable
2282 if get_option('kvm').allowed() and host_os == 'linux'  variable
2472 if host_os == 'windows'  variable
2533 if (have_inotify_init or have_inotify_init1) and host_os == 'freebsd'  variable
2951 elif host_os == 'windows'  variable
2953 elif host_os == 'linux'  variable
2990 if host_os == 'windows' and 'cpp' in all_languages  variable
3001 if host_os == 'windows'  variable
3011 if host_os == 'windows'  variable
3257 if host_os == 'linux' and have_vhost_user  variable
3581   if host_os == 'windows'  variable
3866 if host_os == 'darwin'  variable
3884   if host_os == 'linux'  variable
3980     if host_os == 'windows' and (sdl.found() or gtk.found())  variable
4007     if host_os == 'darwin'  variable
4020     if host_os == 'darwin'  variable
4058   if host_os == 'windows'  variable
4109   if host_os == 'linux'  variable
4209 pathsep = host_os == 'windows' ? ';' : ':'  variable
4240 if host_os == 'windows' and have_ga  variable
4439 if host_os == 'darwin'  variable
4472 elif host_os == 'darwin'  variable
4474 elif host_os == 'windows'  variable
4477 if host_os == 'linux'  variable
4487 if host_os == 'darwin'  variable
4521 if host_os == 'windows'  variable
4547 if host_os == 'freebsd'  variable
4596   if host_os == 'windows'  variable