diff --git a/configure.ac b/configure.ac
index 721cf16684a..7c8638a4715 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1105,6 +1105,8 @@ AS_IF([test $gl_gcc_warnings = no],
   if test "$emacs_cv_clang" = yes; then
     gl_WARN_ADD([-Wno-missing-braces])
     gl_WARN_ADD([-Wno-null-pointer-arithmetic])
+    gl_WARN_ADD([-Wno-implicit-const-int-float-conversion])
+    gl_WARN_ADD([-Wno-int-in-bool-context])
   fi
 
   # This causes too much noise in the MinGW build