diff -up xmp-4.1.0/src/Makefile.am.xmp-conf xmp-4.1.0/src/Makefile.am
--- xmp-4.1.0/src/Makefile.am.xmp-conf	2014-11-22 23:29:40.000000000 +0100
+++ xmp-4.1.0/src/Makefile.am	2016-08-20 01:21:54.467176350 +0200
@@ -1,6 +1,6 @@
 # -*- Makefile -*-
 
-AM_CPPFLAGS = -DSYSCONFDIR=\"${sysconfdir}\" ${libxmp_CFLAGS} \
+AM_CPPFLAGS = -DSYSCONFDIR=\"${sysconfdir}/${PACKAGE_NAME}\" ${libxmp_CFLAGS} \
               ${alsa_CFLAGS} ${pulseaudio_CFLAGS}
 AM_CFLAGS   = -Wall
 
diff -up xmp-4.1.0/src/Makefile.in.xmp-conf xmp-4.1.0/src/Makefile.in
--- xmp-4.1.0/src/Makefile.in.xmp-conf	2016-07-16 13:30:05.119883306 +0200
+++ xmp-4.1.0/src/Makefile.in	2016-08-20 01:22:39.732941728 +0200
@@ -382,7 +382,7 @@ target_alias = @target_alias@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
-AM_CPPFLAGS = -DSYSCONFDIR=\"${sysconfdir}\" ${libxmp_CFLAGS} \
+AM_CPPFLAGS = -DSYSCONFDIR=\"${sysconfdir}/${PACKAGE_NAME}\" ${libxmp_CFLAGS} \
               ${alsa_CFLAGS} ${pulseaudio_CFLAGS}
 
 AM_CFLAGS = -Wall