From ed5334a7fe2610b3a80b3fe9ccd031c27fb591cd Mon Sep 17 00:00:00 2001
From: mlmikael <mlmikael@openmailbox.org>
Date: Sun, 19 Jul 2015 16:07:46 +0200
Subject: [PATCH] Update configure.ac to make it build on OpenBSD

This update is to make libsecp256k1 build on OpenBSD (more specifically OpenBSD 5.7 with Autotools 2.69).

Without the "AM_PROG_CC_C_O" line in configure.ac, ./autogen.sh crashes with "Makefile.am: C objects in subdir but `AM_PROG_CC_C_O' not in `configure.ac'\nautoreconf-2.69: automake failed with exit status: 1".
---
 configure.ac | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/configure.ac b/configure.ac
index 70c9e593f64..ec5490f4517 100644
--- a/configure.ac
+++ b/configure.ac
@@ -23,6 +23,8 @@ if test "x$CFLAGS" = "x"; then
   CFLAGS="-O3 -g"
 fi
 
+AM_PROG_CC_C_O
+
 AC_PROG_CC_C89
 if test x"$ac_cv_prog_cc_c89" = x"no"; then
   AC_MSG_ERROR([c89 compiler support required])