@@ -238,10 +238,12 @@
 ])
 
 AC_DEFUN([BUILDSYS_FRAMEWORK], [
 	AC_REQUIRE([AC_CANONICAL_HOST])
 	AC_REQUIRE([BUILDSYS_SHARED_LIB])
+
+	AC_CHECK_TOOL(CODESIGN, codesign)
 
 	case "$host_os" in
 		darwin*)
 			AC_MSG_CHECKING(whether host is iOS)
 			AC_EGREP_CPP(yes, [