Update buidlroot to version 2016.08.1

bsp/buildroot/package/elfutils/0002-disable-progs.patch

@@ -9,15 +9,17 @@ obstack_printf() in uClibc for example).
 
 Based on the former patch by Thomas Petazzoni.
 
+[Vincent: tweak patch for 0.166]
+
 Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
 Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
 
 diff -rup a/configure.ac b/configure.ac
---- a/configure.ac	2015-01-06 11:31:10.122219826 +0000
-+++ b/configure.ac	2015-01-06 11:37:38.397891424 +0000
-@@ -260,6 +260,12 @@ if test "$ac_cv_func_argp_parse" != yes;
- fi
- AC_SUBST(ARGP_LIBS)
+--- a/configure.ac	2016-03-31 09:48:08.000000000 +0100
++++ b/configure.ac	2016-06-17 14:47:03.561704498 +0100
+@@ -253,6 +253,12 @@ AC_SUBST([LIBEBL_SUBDIR])
+ AC_DEFINE_UNQUOTED(LIBEBL_SUBDIR, "$LIBEBL_SUBDIR")
+ AH_TEMPLATE([LIBEBL_SUBDIR], [$libdir subdirectory containing libebl modules.])
  
 +AC_ARG_ENABLE([progs],
 +	AS_HELP_STRING([--enable-progs], [enable progs]),
@@ -25,13 +27,13 @@ diff -rup a/configure.ac b/configure.ac
 +	enable_progs=yes)
 +AM_CONDITIONAL(ENABLE_PROGS, test "$enable_progs" = yes)
 +
- dnl Test for zlib and bzlib, gives ZLIB/BZLIB .am
- dnl conditional and config.h USE_ZLIB/USE_BZLIB #define.
+ dnl zlib is mandatory.
  save_LIBS="$LIBS"
+ LIBS=
 diff -rup a/Makefile.am b/Makefile.am
---- a/Makefile.am	2014-06-17 19:51:09.000000000 +0100
-+++ b/Makefile.am	2015-01-06 11:38:42.846999410 +0000
-@@ -22,9 +22,13 @@ ACLOCAL_AMFLAGS = -I m4
+--- a/Makefile.am	2016-01-12 12:49:19.000000000 +0000
++++ b/Makefile.am	2016-06-17 14:48:02.585861468 +0100
+@@ -26,9 +26,13 @@ AM_MAKEFLAGS = --no-print-directory
  
  pkginclude_HEADERS = version.h