secp256k1

secp256k1/cmake/CheckStringOptionValue.cmake

@@ -0,0 +1,10 @@
+function(check_string_option_value option)
+  get_property(expected_values CACHE ${option} PROPERTY STRINGS)
+  if(expected_values)
+    if(${option} IN_LIST expected_values)
+      return()
+    endif()
+    message(FATAL_ERROR "${option} value is \"${${option}}\", but must be one of ${expected_values}.")
+  endif()
+  message(AUTHOR_WARNING "The STRINGS property must be set before invoking `check_string_option_value' function.")
+endfunction()