Makefile: add target for Include What You Use (iwyu)

Requires http://include-what-you-use.org/ and Clang to operate.
Doesn't quite work for the builtin_* collection; that has to be done by
hand.

1 files changed, 4 insertions, 0 deletions

diff --git a/build_tools/iwyu.sh b/build_tools/iwyu.sh
new file mode 100755
index 00000000..dc36796a
--- /dev/null
+++ b/build_tools/iwyu.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+# Reminder of how to run Include What You Use
+
+make iwyu