From c88e2b8cca13767afb7b3653ddd2ea342115031a Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter.wuille@gmail.com>
Date: Tue, 9 Dec 2014 01:30:43 +0100
Subject: [PATCH] Compile with -O3 by default

---
 configure.ac | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/configure.ac b/configure.ac
index 60a5405..c65d615 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,6 +18,10 @@ AC_PATH_TOOL(AR, ar)
 AC_PATH_TOOL(RANLIB, ranlib)
 AC_PATH_TOOL(STRIP, strip)
 
+if test -z $CFLAGS; then
+  CFLAGS="-O3 -g"
+fi
+
 AC_PROG_CC_C99
 if test x"$ac_cv_prog_cc_c99" == x"no"; then
   AC_MSG_ERROR([c99 compiler support required])