[m4-common] Add AX_APPEND_LINK_FLAGS macro

[Philip Withnall <pwithnall src gnome org>]

commit b4fe0856824b533553d2397fcc7f883065222888
Author: Philip Withnall <philip withnall collabora co uk>
Date:   Thu Mar 17 10:17:43 2016 +0000

    Add AX_APPEND_LINK_FLAGS macro
    
    It’s needed for compiling gssdp.

 Makefile.am |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index 9e4129d..635824d 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -3,6 +3,7 @@ aclocaldir = $(prefix)/share/aclocal
 # sorted, please
 dist_aclocal_DATA = \
        autoconf-archive/m4/ax_append_compile_flags.m4                  \
+       autoconf-archive/m4/ax_append_link_flags.m4                     \
        autoconf-archive/m4/ax_append_flag.m4                           \
        autoconf-archive/m4/ax_check_compile_flag.m4                    \
        autoconf-archive/m4/ax_is_release.m4                            \