diff -Naur aqualung-1.0_orig/configure.ac aqualung-1.0/configure.ac
--- aqualung-1.0_orig/configure.ac	2020-08-05 20:00:50.758797358 +0200
+++ aqualung-1.0/configure.ac	2020-08-05 20:01:33.198796503 +0200
@@ -25,11 +25,12 @@
 
 
 # Checks for programs.
+AC_USE_SYSTEM_EXTENSIONS
 AC_PROG_CC
 AC_PROG_RANLIB
 AC_PROG_CXX
 AM_PROG_CC_C_O
-AC_USE_SYSTEM_EXTENSIONS
+AM_PROG_AR
 m4_ifndef([AM_GNU_GETTEXT],
     [m4_fatal([GNU gettext is required to prepare the Aqualung build])])
 AM_GNU_GETTEXT([external])