util.cmake: add prototype for *_dummy_function
quiets -Wmissing-prototypes
Change-Id: If473465e4079e3471f273e87427350dde6af828a
diff --git a/build/cmake/util.cmake b/build/cmake/util.cmake
index 7897e92..d1f0d02 100644
--- a/build/cmake/util.cmake
+++ b/build/cmake/util.cmake
@@ -25,6 +25,7 @@
"// Generated file. DO NOT EDIT!\n"
"// ${target_name} needs a ${extension} file to force link language, \n"
"// or to silence a harmless CMake warning: Ignore me.\n"
+ "void aom_${target_name}_dummy_function(void);\n"
"void aom_${target_name}_dummy_function(void) {}\n")
list(APPEND "${out_file_list_var}" "${dummy_source_file}")
endmacro()
