Fix compilation for PICO_BOARD=pico_w when cyw43_arch is missing

Author: lurch

CMakeLists.txt

@@ -43,7 +43,15 @@ function(add_subdirectory_exclude_platforms NAME)
 endfunction()
 
 # Add blink example
-add_subdirectory_exclude_platforms(blink)
+if (PICO_CYW43_SUPPORTED) # set by PICO_BOARD=pico_w
+    if (NOT TARGET pico_cyw43_arch)
+        message("Skipping blink for Pico W as support is not available")
+    else()
+        add_subdirectory_exclude_platforms(blink)
+    endif()
+else()
+    add_subdirectory_exclude_platforms(blink)
+endif()
 add_subdirectory_exclude_platforms(blink_simple)
 
 # Add hello world example

adc/CMakeLists.txt

@@ -5,7 +5,15 @@ if (TARGET hardware_adc)
     add_subdirectory_exclude_platforms(joystick_display)
     add_subdirectory_exclude_platforms(onboard_temperature)
     add_subdirectory_exclude_platforms(microphone_adc)
-    add_subdirectory_exclude_platforms(read_vsys)
+    if (PICO_CYW43_SUPPORTED) # set by PICO_BOARD=pico_w
+        if (NOT TARGET pico_cyw43_arch)
+            message("Skipping read_vsys for Pico W as support is not available")
+        else()
+            add_subdirectory_exclude_platforms(read_vsys)
+        endif()
+    else()
+        add_subdirectory_exclude_platforms(read_vsys)
+    endif()
 else()
     message("Skipping ADC examples as hardware_adc is unavailable on this platform")
-endif()
+endif()