modules: meson: add missing ‘m’ (math) dependency

The following modules used functions from the ‘m’ (math)
library (e.g. round()), but didn’t explicitly link against it. This
caused build failures when no other plugin that _did_ link against ‘m’
was enabled.

* cpu
* mem
* pulse
* pipewire
* foreign-toplevel

Closes #239

CHANGELOG.md

@@ -16,6 +16,13 @@
 ### Deprecated
 ### Removed
 ### Fixed
+
+* Build failures for certain combinations of enabled and disabled
+  plugins ([#239][239]).
+
+[239]: https://codeberg.org/dnkl/yambar/issues/239
+
+
 ### Security
 ### Contributors
 

modules/meson.build

@@ -70,7 +70,7 @@ if plugin_clock_enabled
 endif
 
 if plugin_cpu_enabled
-  mod_data += {'cpu': [[], [dynlist]]}
+  mod_data += {'cpu': [[], [m, dynlist]]}
 endif
 
 if plugin_disk_io_enabled
@@ -82,7 +82,7 @@ if plugin_dwl_enabled
 endif
 
 if plugin_mem_enabled
-  mod_data += {'mem': [[], []]}
+  mod_data += {'mem': [[], [m]]}
 endif
 
 if plugin_mpd_enabled
@@ -102,11 +102,11 @@ if plugin_network_enabled
 endif
 
 if plugin_pipewire_enabled
-  mod_data += {'pipewire': [[], [pipewire, dynlist, json_pipewire]]}
+  mod_data += {'pipewire': [[], [m, pipewire, dynlist, json_pipewire]]}
 endif
 
 if plugin_pulse_enabled
-  mod_data += {'pulse': [[], [pulse]]}
+  mod_data += {'pulse': [[], [m, pulse]]}
 endif
 
 if plugin_removables_enabled
@@ -170,7 +170,7 @@ if plugin_foreign_toplevel_enabled
       command: [wscanner_prog, 'private-code', '@INPUT@', '@OUTPUT@'])
   endforeach
 
-  mod_data += {'foreign-toplevel': [[wl_proto_src + wl_proto_headers + ftop_proto_headers + ftop_proto_src], [dynlist, wayland_client]]}
+  mod_data += {'foreign-toplevel': [[wl_proto_src + wl_proto_headers + ftop_proto_headers + ftop_proto_src], [m, dynlist, wayland_client]]}
 endif
 
 foreach mod, data : mod_data