bluetooth: limit to Linux due to missing /dev/rfkill

../src/modules/bluetooth.cpp:3:10: fatal error: 'linux/rfkill.h' file not found
 #include <linux/rfkill.h>
          ^~~~~~~~~~~~~~~~

include/factory.hpp

@@ -36,7 +36,9 @@
 #include "bar.hpp"
 #include "modules/custom.hpp"
 #include "modules/temperature.hpp"
+#if defined(__linux__)
 #include "modules/bluetooth.hpp"
+#endif
 
 namespace waybar {
 

meson.build

@@ -117,7 +117,6 @@ src_files = files(
     'src/factory.cpp',
     'src/AModule.cpp',
     'src/ALabel.cpp',
-    'src/modules/bluetooth.cpp',
     'src/modules/clock.cpp',
     'src/modules/custom.cpp',
     'src/modules/disk.cpp',
@@ -126,7 +125,6 @@ src_files = files(
     'src/main.cpp',
     'src/bar.cpp',
     'src/client.cpp',
-    'src/util/rfkill.cpp'
 )
 
 if is_linux
@@ -134,10 +132,12 @@ if is_linux
     add_project_arguments('-DHAVE_MEMORY_LINUX', language: 'cpp')
     src_files += files(
         'src/modules/battery.cpp',
+        'src/modules/bluetooth.cpp',
         'src/modules/cpu/common.cpp',
         'src/modules/cpu/linux.cpp',
         'src/modules/memory/common.cpp',
         'src/modules/memory/linux.cpp',
+        'src/util/rfkill.cpp'
     )
 elif is_dragonfly or is_freebsd or is_netbsd or is_openbsd
     add_project_arguments('-DHAVE_CPU_BSD', language: 'cpp')

src/factory.cpp

@@ -70,9 +70,11 @@ waybar::AModule* waybar::Factory::makeModule(const std::string& name) const {
     if (ref == "temperature") {
       return new waybar::modules::Temperature(id, config_[name]);
     }
+#if defined(__linux__)
     if (ref == "bluetooth") {
       return new waybar::modules::Bluetooth(id, config_[name]);
     }
+#endif
     if (ref.compare(0, 7, "custom/") == 0 && ref.size() > 7) {
       return new waybar::modules::Custom(ref.substr(7), id, config_[name]);
     }