doc(net): Indicate the wireless library used

This helps us to more easily debug network issues because before it
wasn't clear if a user had built polybar with the libnl or libiw
adapter

cmake/02-opts.cmake

@@ -9,8 +9,10 @@ checklib(ENABLE_MPD "pkg-config" libmpdclient)
 checklib(WITH_LIBNL "pkg-config" libnl-genl-3.0)
 if(WITH_LIBNL)
   checklib(ENABLE_NETWORK "pkg-config" libnl-genl-3.0)
+  set(WIRELESS_LIB "libnl")
 else()
   checklib(ENABLE_NETWORK "cmake" Libiw)
+  set(WIRELESS_LIB "wireless-tools")
 endif()
 checklib(ENABLE_PULSEAUDIO "pkg-config" libpulse)
 checklib(ENABLE_PULSEAUDIO "binary" pulseaudio)

cmake/05-summary.cmake

@@ -17,7 +17,7 @@ colored_option("   alsa" ENABLE_ALSA)
 colored_option("   curl" ENABLE_CURL)
 colored_option("   i3" ENABLE_I3)
 colored_option("   mpd" ENABLE_MPD)
-colored_option("   network" ENABLE_NETWORK)
+colored_option("   network (${WIRELESS_LIB})" ENABLE_NETWORK)
 colored_option("   pulseaudio" ENABLE_PULSEAUDIO)
 colored_option("   xkeyboard" WITH_XKB)
 

include/settings.hpp.cmake

@@ -21,6 +21,7 @@
 #cmakedefine01 ENABLE_MPD
 #cmakedefine01 ENABLE_NETWORK
 #cmakedefine01 WITH_LIBNL
+#define WIRELESS_LIB "@WIRELESS_LIB@"
 #cmakedefine01 ENABLE_I3
 #cmakedefine01 ENABLE_CURL
 #cmakedefine01 ENABLE_PULSEAUDIO
@@ -102,12 +103,13 @@ const auto version_details = [](const std::vector<std::string>& args) {
 // clang-format off
 const auto print_build_info = [](bool extended = false) {
   printf("%s %s\n\n", APP_NAME, APP_VERSION);
-  printf("Features: %calsa %ccurl %ci3 %cmpd %cnetwork %cpulseaudio %cxkeyboard\n",
+  printf("Features: %calsa %ccurl %ci3 %cmpd %cnetwork(%s) %cpulseaudio %cxkeyboard\n",
     (ENABLE_ALSA       ? '+' : '-'),
     (ENABLE_CURL       ? '+' : '-'),
     (ENABLE_I3         ? '+' : '-'),
     (ENABLE_MPD        ? '+' : '-'),
     (ENABLE_NETWORK    ? '+' : '-'),
+    WIRELESS_LIB,
     (ENABLE_PULSEAUDIO ? '+' : '-'),
     (ENABLE_XKEYBOARD  ? '+' : '-'));
   if (extended) {