Added build script for include-what-you-use.

diff --git a/__build_iwyu.sh b/__build_iwyu.sh
new file mode 100755 (executable)
index 0000000..67b281b
--- /dev/null
+++ b/__build_iwyu.sh
@@ -0,0 +1,14 @@
+#!/bin/sh
+
+builddir=__build_iwyu
+rm -rf $builddir
+mkdir $builddir
+
+cd $builddir
+../configure \
+    --enable-libs \
+    --enable-debug \
+    CXX=include-what-you-use \
+    CXXFLAGS="-Xiwyu --check_also='*.re' -Xiwyu --check_also='*.y' -Xiwyu --no_comments" \
+    && make -k 2>log
+cd ..