Pacify Clang's -Wformat-signedness.

* configure.ac: Enable -Wno-format-signedness if Clang is being used.

(cherry picked from commit 1b03a348f7e7a01961108867985006fdfcc0a8cf)

diff --git a/configure.ac b/configure.ac
index afb6816f235265b81fed406ca309f3b51102e4ab..cd0b5e22d3f151690eb03850448c5463879e9b9c 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1869,6 +1869,7 @@ AS_IF([test $gl_gcc_warnings = no],
   # clang is unduly picky about some things.
   if test "$emacs_cv_clang" = yes; then
     gl_WARN_ADD([-Wno-bitwise-instead-of-logical])
+    gl_WARN_ADD([-Wno-format-signedness])
     gl_WARN_ADD([-Wno-missing-braces])
     gl_WARN_ADD([-Wno-null-pointer-arithmetic])
     gl_WARN_ADD([-Wno-implicit-const-int-float-conversion])