diff --git a/components/libc/Kconfig b/components/libc/Kconfig
index 6f82bfbe8ec99af86e4970d6b471935234792ae5..852bb5cfc9cb2931ddc0d4dd12e2513e894dd36e 100644
--- a/components/libc/Kconfig
+++ b/components/libc/Kconfig
@@ -29,4 +29,10 @@ if RT_USING_LIBC && RT_USING_DFS
     endif
 endif
 
+config HAVE_SYS_SIGNALS
+    bool "Toolchains/libc has sigval/sigevent structure definitions"
+    default n
+    help
+        Toolchains/libc has sigval/sigevent/siginfo_t definitions.
+
 endmenu