--- configure.orig	2018-04-20 10:02:55 UTC
+++ configure
@@ -3516,12 +3516,7 @@ target_os_default=$(tolower $(uname -s))
 host_os=$target_os_default
 
 # machine
-if test "$target_os_default" = aix; then
-    arch_default=$(uname -p)
-    strip_default="strip -X32_64"
-else
-    arch_default=$(uname -m)
-fi
+arch_default=$(uname -p)
 cpu="generic"
 intrinsics="none"
 
@@ -6234,8 +6229,10 @@ else
 EOF
 fi
 
-enabled alsa && check_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||
+if enabled alsa; then
+    check_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||
     check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound
+fi
 
 enabled libjack &&
     require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range