From: Rodolphe PELLOUX-PRAYER <rodolphe@damsy.net>
Date: Sun, 24 May 2015 15:06:07 +0200
Subject: update_configure

---
 configure.ac    | 79 +++++++++++++++++++--------------------------------------
 src/Makefile.am |  4 ++-
 2 files changed, 29 insertions(+), 54 deletions(-)

--- a/configure.ac
+++ b/configure.ac
@@ -3,15 +3,14 @@
 
 AC_PREREQ(2.59)
 AC_INIT([dfu-programmer],[1.1.0],[https://github.com/dfu-programmer/dfu-programmer/issues],[],[https://dfu-programmer.github.io/])
-AC_CONFIG_AUX_DIR(m4)
+AC_CONFIG_AUX_DIR([m4])
 AC_CONFIG_SRCDIR([src/atmel.c])
-AM_INIT_AUTOMAKE
 AC_CONFIG_HEADERS([src/config.h])
 
-AM_MAINTAINER_MODE
+AM_INIT_AUTOMAKE()
 
-# Checks for programs.
-AC_PROG_CC
+# Enable silent rules if available
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 
 # Checks for header files.
 AC_CHECK_HEADERS([stddef.h stdint.h])
@@ -23,7 +22,8 @@ AC_TYPE_SIZE_T
 # Checks for library functions.
 AC_FUNC_MALLOC
 AC_FUNC_MEMCMP
-#AC_CHECK_FUNC([memset], :, [AC_CHECK_LIB([libc], [libc])])
+
+AM_MAINTAINER_MODE([enable])
 
 # Checks for libusb.
 AC_SEARCH_LIBS(libusb_init, usb-1.0,, [AC_MSG_ERROR([libusb 1.0 not found])])