diff --git a/configure b/configure
index 617729543a186cdc2965cd52738a43f877d28e26..a17bc8445ef2fe9f5602285f15fbe02b0dc4d84c 100755
--- a/configure
+++ b/configure
@@ -1784,6 +1784,7 @@ check_cflags -Wdisabled-optimization
 check_cflags -Wpointer-arith
 check_cflags -Wredundant-decls
 check_cflags -Wno-pointer-sign
+check_cflags -Wcast-qual
 enabled extra_warnings && check_cflags -Winline
 
 # add some linker flags