commit 988a001f969262089579958827652da00fda096f
Author: Ben Gamari <ben@smart-cactus.org>
Date:   Tue Oct 17 16:15:20 2017 -0400

    Look for AR

diff --git a/Makefile.in b/Makefile.in
index bc156ce..cc02126 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -464,7 +464,7 @@ INSTALL_SCRIPT=@INSTALL_SCRIPT@
 INSTALL_DATA=@INSTALL_DATA@
 INSTALL_INFO=@INSTALL_INFO@
 LN_S=@LN_S@
-AR=ar
+AR=@AR@
 ETAGS=etags
 ETAGSFLAGS=
 # Flag that tells etags to assume C++.
diff --git a/configure.ac b/configure.ac
index c779165..6d53f5e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -45,6 +45,7 @@ AC_PREREQ([2.62])
 
 AC_CONFIG_HEADERS([src/include/config.h:src/include/config.hin])
 AC_CONFIG_SRCDIR([src/roff/groff/groff.cpp])
+AC_CONFIG_MACRO_DIR([m4])
 
 AC_USE_SYSTEM_EXTENSIONS
 
@@ -73,6 +74,7 @@ GROFF_PROG_YACC
 GROFF_DOC_CHECK
 GROFF_MAKEINFO
 AC_PROG_RANLIB
+AC_CHECK_TOOL([AR], [ar], [ar])
 GROFF_INSTALL_SH
 GROFF_INSTALL_INFO
 AC_PROG_INSTALL