Squashed 'third_party/elfutils/' content from commit 555e15e

Change-Id: I61cde98949e47e5c8c09c33260de17f30921be79
git-subtree-dir: third_party/elfutils
git-subtree-split: 555e15ebe8bf1eb33d00747173cfc80cc65648a4
diff --git a/libdwfl/bzip2.c b/libdwfl/bzip2.c
new file mode 100644
index 0000000..8ad4ee5
--- /dev/null
+++ b/libdwfl/bzip2.c
@@ -0,0 +1,4 @@
+/* bzlib is almost just like zlib.  */
+
+#define BZLIB
+#include "gzip.c"