diff --git a/Makefile.am b/Makefile.am
index af77d2ae..c08b3529 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -40,6 +40,26 @@ AM_CPPFLAGS += \
   -I$(top_srcdir)/src/compat \
   -I$(top_srcdir)/src/common
 
+# Automake cannot handle dependencies behind an autoconf expansion.
+# So we need elaborate ifelsery here to make it see the libtool
+# files for dependency rule generation. That is stupid. One point
+# for those usurping build systems with new flaws.
+if BUILD_LIBMPG123
+LIBMPG123 = src/libmpg123/libmpg123.la
+else
+LIBMPG123 = @LIBMPG123_LD@
+endif
+if BUILD_LIBOUT123
+LIBOUT123 = src/libout123/libout123.la
+else
+LIBOUT123 = @LIBOUT123_LD@
+endif
+if BUILD_LIBSYN123
+LIBSYN123 = src/libsyn123/libsyn123.la
+else
+LIBSYN123 = @LIBSYN123_LD@
+endif
+
 # Include Make modules from subdirectories.
 include src/Makemodule.am
 include doc/Makemodule.am
diff --git a/NEWS b/NEWS
index c353896f..b9c2cb7d 100644
--- a/NEWS
+++ b/NEWS
@@ -7,6 +7,12 @@
 -- Get rid of SIZE_P, OFF_P and friends.
 -- Only enforce dummy module together with libout123, to be able
    to build individual modules using --disable-components logic.
+-- Allow building of programs with installed mpg123 libraries (--enable-programs,
+   using pkg-config to locate libmpg123 et al., prompted by
+   https://github.com/madebr/mpg123/pull/11).
+-- Only libmpg123 component installs fmt123.h.
+- out123:
+-- added --libversion
 
 1.32.3
 ------
diff --git a/configure.ac b/configure.ac
index e47c7d5b..bfd2d583 100644
--- a/configure.ac
+++ b/configure.ac
@@ -380,6 +380,21 @@ AC_ARG_ENABLE(components,
   ]
 )
 
+AC_ARG_ENABLE(programs,
+  [AS_HELP_STRING([--enable-programs], [build (only) programs (with --disable-components)])],
+  [
+    if test "x$enableval" = xyes
+    then
+      build_programs=yes
+    else
+      build_programs=no
+    fi
+  ],
+  [
+    build_programs=no
+  ]
+)
+
 AC_ARG_ENABLE(libmpg123,
   [AS_HELP_STRING([--enable-libmpg123], [build (only) libmpg123 (with --disable-components)])],
   [
@@ -446,34 +461,69 @@ if test "x$build_all" = xyes; then
   build_libout123=yes
   build_libout123_modules=yes
   build_libsyn123=yes
-  components="programs"
-else
-  build_programs=no
 fi
 
 AM_CONDITIONAL([BUILD_PROGRAMS],  [ test "x$build_programs" = xyes ])
 AM_CONDITIONAL([BUILD_LIBMPG123], [ test "x$build_libmpg123" = xyes ])
 AM_CONDITIONAL([BUILD_LIBOUT123], [ test "x$build_libout123" = xyes ])
 AM_CONDITIONAL([BUILD_LIBOUT123_MODULES], [ test "x$build_libout123_modules" = xyes ])
+AM_CONDITIONAL([BUILD_LIBOUT123_OR_MODULES], [ test "x$build_libout123" = xyes || test "x$build_libout123_modules" = xyes ])
 AM_CONDITIONAL([BUILD_LIBSYN123], [ test "x$build_libsyn123" = xyes ])
-AM_CONDITIONAL([NEED_FMT123], [ test "x$build_libmpg123" = xyes || test "x$build_libout123" = xyes || test "x$build_libsyn123" = xyes ])
 # If we install libraries, prompting pkgconfig and include directories.
 AM_CONDITIONAL([NEED_LIB], [ test "x$build_libmpg123" = xyes || test "x$build_libout123" = xyes || test "x$build_libout123_modules" = xyes || test "x$build_libsyn123" = xyes ])
 AM_CONDITIONAL([NEED_MAINLIB], [ test "x$build_libmpg123" = xyes || test "x$build_libout123" = xyes || test "x$build_libsyn123" = xyes ])
 
+dnl Some support for using separately installed lib*123. This is not perfect,
+dnl with per-library CFLAGS just being lumped into global CFLAGS. So do not
+dnl expect to mix differing prefixes with possibly conflicting versions of
+dnl the libraries. The expectation is a version matching this source distribution,
+dnl anyway.
+
+missing_lib=no
+
+components=""
+
+if test "x$build_programs" = xyes; then
+  components="$components programs"
+fi
 
+LIBMPG123_LD=abugifused
 if test "x$build_libmpg123" = xyes; then
   components="$components libmpg123"
+elif test "x$build_programs" = xyes; then
+  PKG_CHECK_MODULES(LIBMPG123_PKG, libmpg123, HAVE_LIBMPG123="yes", HAVE_LIBMPG123="no" missing_lib=yes)
+  CFLAGS="$CFLAGS $LIBMPG123_PKG_CFLAGS"
+  LIBMPG123_LD="$LIBMPG123_PKG_LIBS"
 fi
+LIBOUT123_LD=abugifused
 if test "x$build_libout123" = xyes; then
   components="$components libout123"
+elif test "x$build_programs" = xyes; then
+  PKG_CHECK_MODULES(LIBOUT123_PKG, libout123, HAVE_LIBOUT123="yes", HAVE_LIBOUT123="no" missing_lib=yes)
+  CFLAGS="$CFLAGS $LIBOUT123_PKG_CFLAGS"
+  LIBOUT123_LD="$LIBOUT123_PKG_LIBS"
 fi
 if test "x$build_libout123_modules" = xyes; then
   components="$components libout123-modules"
 fi
+LIBSYN123=abugifused
 if test "x$build_libsyn123" = xyes; then
   components="$components libsyn123"
+elif test "x$build_programs" = xyes; then
+  PKG_CHECK_MODULES(LIBSYN123_PKG, libsyn123, HAVE_LIBSYN123="yes", HAVE_LIBSYN123="no" missing_lib=yes)
+  CFLAGS="$CFLAGS $LIBSYN123_PKG_CFLAGS"
+  LIBSYN123_LD="$LIBSYN123_PKG_LIBS"
 fi
+
+if test "x$missing_lib" = xyes; then
+  AC_MSG_ERROR([Missing an external mpg123 library for the programs.])
+fi
+
+dnl Stupid names because @foo@ cannot coexist with foo.
+AC_SUBST(LIBMPG123_LD)
+AC_SUBST(LIBOUT123_LD)
+AC_SUBST(LIBSYN123_LD)
+
 components=$(echo $components)
 
 dnl ############## Configurable Options
diff --git a/ports/cmake/src/libmpg123/CMakeLists.txt b/ports/cmake/src/libmpg123/CMakeLists.txt
index 64b37540..d565867d 100644
--- a/ports/cmake/src/libmpg123/CMakeLists.txt
+++ b/ports/cmake/src/libmpg123/CMakeLists.txt
@@ -254,6 +254,6 @@ install(TARGETS ${TARGET} EXPORT targets
     RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}/")
 install(FILES "${CMAKE_CURRENT_SOURCE_DIR}/../../../../src/libmpg123/mpg123.h"
     DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")
-install(FILES "${CMAKE_CURRENT_SOURCE_DIR}/../../../../src/libmpg123/fmt123.h"
+install(FILES "${CMAKE_CURRENT_SOURCE_DIR}/../../../../src/fmt123.h"
     DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")
 
diff --git a/src/Makemodule.am b/src/Makemodule.am
index 48632b57..fbde8788 100644
--- a/src/Makemodule.am
+++ b/src/Makemodule.am
@@ -23,17 +23,17 @@ endif
 
 src_mpg123_LDADD = \
   src/compat/libcompat.la \
-  src/libmpg123/libmpg123.la \
-  src/libout123/libout123.la \
-  src/libsyn123/libsyn123.la \
+  $(LIBMPG123) \
+  $(LIBOUT123) \
+  $(LIBSYN123) \
   @PROG_LIBS@
 
 src_mpg123_LDFLAGS = @EXEC_LT_LDFLAGS@
 
 src_out123_LDADD = \
   src/compat/libcompat.la \
-  src/libsyn123/libsyn123.la \
-  src/libout123/libout123.la \
+  $(LIBSYN123) \
+  $(LIBOUT123) \
   @PROG_LIBS@
 
 src_out123_LDFLAGS = @EXEC_LT_LDFLAGS@
@@ -47,12 +47,12 @@ CLEANFILES += src/*.a
 
 src_mpg123_id3dump_LDADD = \
   src/compat/libcompat.la \
-  src/libmpg123/libmpg123.la \
+  $(LIBMPG123) \
   @PROG_LIBS@
 
 src_mpg123_strip_LDADD = \
   src/compat/libcompat.la \
-  src/libmpg123/libmpg123.la \
+  $(LIBMPG123) \
   @PROG_LIBS@
 
 src_mpg123_SOURCES = \
diff --git a/src/libmpg123/fmt123.h b/src/fmt123.h
similarity index 100%
rename from src/libmpg123/fmt123.h
rename to src/fmt123.h
diff --git a/src/libmpg123/Makemodule.am b/src/libmpg123/Makemodule.am
index 2557154a..00ae4788 100644
--- a/src/libmpg123/Makemodule.am
+++ b/src/libmpg123/Makemodule.am
@@ -21,9 +21,9 @@ src_libmpg123_calctables_LDADD = @LIBM@
 if BUILD_LIBMPG123
 lib_LTLIBRARIES += src/libmpg123/libmpg123.la
 include_HEADERS += src/libmpg123/mpg123.h
-endif
-if NEED_FMT123
-include_HEADERS += src/libmpg123/fmt123.h
+# All libs need it, but only libmpg123 installs it.
+# Placing it in src/ helps other components to always find it.
+include_HEADERS += src/fmt123.h
 endif
 
 src_libmpg123_libmpg123_la_CFLAGS = @LIB_CFLAGS@
@@ -39,7 +39,7 @@ src_libmpg123_libmpg123_la_DEPENDENCIES = \
   src/compat/libcompat.la
 
 src_libmpg123_libmpg123_la_SOURCES = \
-  src/libmpg123/fmt123.h \
+  src/fmt123.h \
   src/libmpg123/mpeghead.h \
   src/libmpg123/parse.c \
   src/libmpg123/parse.h \
diff --git a/src/libout123/modules/Makemodule.am b/src/libout123/modules/Makemodule.am
index e04c07e4..4d87308e 100644
--- a/src/libout123/modules/Makemodule.am
+++ b/src/libout123/modules/Makemodule.am
@@ -761,6 +761,7 @@ src_libout123_modules_libdefaultmodule_la_CPPFLAGS = \
 endif
 endif
 
+if BUILD_LIBOUT123_OR_MODULES
 if HAVE_MODULES
 # Get rid of .la files, at least _after_ install.
 install-exec-hook:
@@ -769,3 +770,4 @@ install-exec-hook:
 uninstall-hook:
 	for m in @output_modules_la@; do eval $$(grep dlname= src/libout123/modules/$$m) && rm -f $(DESTDIR)$(pkglibdir)/$$dlname; done
 endif
+endif
diff --git a/src/libout123/modules/aix.c b/src/libout123/modules/aix.c
index fde2829c..b26b14a8 100644
--- a/src/libout123/modules/aix.c
+++ b/src/libout123/modules/aix.c
@@ -8,7 +8,7 @@
 	untested since quite some years now ...
 */
 
-#include "out123_int.h"
+#include "../out123_int.h"
 
 #include <stdio.h>
 #include <unistd.h>
diff --git a/src/libout123/modules/alib.c b/src/libout123/modules/alib.c
index c16872e6..0e60f9b7 100644
--- a/src/libout123/modules/alib.c
+++ b/src/libout123/modules/alib.c
@@ -30,7 +30,7 @@
 
 /**************************************************************************/
 
-#include "out123_int.h"
+#include "../out123_int.h"
 
 #include <fcntl.h>
 
diff --git a/src/libout123/modules/alsa.c b/src/libout123/modules/alsa.c
index b76cadaf..ad94d4cb 100644
--- a/src/libout123/modules/alsa.c
+++ b/src/libout123/modules/alsa.c
@@ -17,7 +17,7 @@
 /* Things are still missing if _DEFAULT_SOURCE is not defined (for recent
    glibc, I presume. */
 #define _DEFAULT_SOURCE
-#include "out123_int.h"
+#include "../out123_int.h"
 #include <errno.h>
 
 /* make ALSA 0.9.x compatible to the 1.0.x API */
diff --git a/src/libout123/modules/arts.c b/src/libout123/modules/arts.c
index 4b5b7e14..70168499 100644
--- a/src/libout123/modules/arts.c
+++ b/src/libout123/modules/arts.c
@@ -8,7 +8,7 @@
 */
 
 
-#include "out123_int.h"
+#include "../out123_int.h"
 #include <artsc.h>
 #include "debug.h"
 
diff --git a/src/libout123/modules/coreaudio.c b/src/libout123/modules/coreaudio.c
index 48ab495a..665c9d87 100644
--- a/src/libout123/modules/coreaudio.c
+++ b/src/libout123/modules/coreaudio.c
@@ -9,7 +9,7 @@
 */
 
 
-#include "out123_int.h"
+#include "../out123_int.h"
 
 /* has been around since at least 10.4 */
 #include <AvailabilityMacros.h>
@@ -44,7 +44,7 @@
 
 /* Including the sfifo code locally, to avoid module linkage issues. */
 #define SFIFO_STATIC
-#include "sfifo.c"
+#include "../sfifo.c"
 
 #include "debug.h"
 
diff --git a/src/libout123/modules/dummy.c b/src/libout123/modules/dummy.c
index a98faa79..83caa096 100644
--- a/src/libout123/modules/dummy.c
+++ b/src/libout123/modules/dummy.c
@@ -5,7 +5,7 @@
 	see COPYING and AUTHORS files in distribution or http://mpg123.org
 */
 
-#include "out123_int.h"
+#include "../out123_int.h"
 #include "debug.h"
 
 static int open_dummy(out123_handle *ao)
diff --git a/src/libout123/modules/esd.c b/src/libout123/modules/esd.c
index 408758f8..1b80b224 100644
--- a/src/libout123/modules/esd.c
+++ b/src/libout123/modules/esd.c
@@ -8,7 +8,7 @@
 
 /* First the common header, including config.h
    ...this is important for stuff like _FILE_OFFSET_BITS */
-#include "out123_int.h"
+#include "../out123_int.h"
 
 #include <esd.h>
 #include <errno.h>
diff --git a/src/libout123/modules/hp.c b/src/libout123/modules/hp.c
index 255b1985..734ace91 100644
--- a/src/libout123/modules/hp.c
+++ b/src/libout123/modules/hp.c
@@ -6,7 +6,7 @@
 	initially written by Michael Hipp
 */
 
-#include "out123_int.h"
+#include "../out123_int.h"
 #include <fcntl.h>
 #include <sys/audio.h>
 #include "debug.h"
diff --git a/src/libout123/modules/jack.c b/src/libout123/modules/jack.c
index fa9d836b..f6fa6818 100644
--- a/src/libout123/modules/jack.c
+++ b/src/libout123/modules/jack.c
@@ -14,7 +14,7 @@
 	There's always a deadlock. --ThOr
 */
 
-#include "out123_int.h"
+#include "../out123_int.h"
 
 #include <math.h>
 
diff --git a/src/libout123/modules/mint.c b/src/libout123/modules/mint.c
index dbcf0c45..bd607bb3 100644
--- a/src/libout123/modules/mint.c
+++ b/src/libout123/modules/mint.c
@@ -6,7 +6,7 @@
 	initially written by Petr Stehlik
 */
 
-#include "out123_int.h"
+#include "../out123_int.h"
 
 /* derived from LINUX, VOXWARE and SUN for MiNT Audio Device by Petr Stehlik */
 #include <fcntl.h>
diff --git a/src/libout123/modules/nas.c b/src/libout123/modules/nas.c
index 2e29723b..2c083029 100644
--- a/src/libout123/modules/nas.c
+++ b/src/libout123/modules/nas.c
@@ -6,7 +6,7 @@
 	initially written by Martin Denn
 */
 
-#include "out123_int.h"
+#include "../out123_int.h"
 #include <fcntl.h>
 #include <audio/audiolib.h>
 #include <audio/soundlib.h>
diff --git a/src/libout123/modules/openal.c b/src/libout123/modules/openal.c
index e49de66a..c324aa06 100644
--- a/src/libout123/modules/openal.c
+++ b/src/libout123/modules/openal.c
@@ -10,7 +10,7 @@
 #define _DEFAULT_SOURCE
 #define _BSD_SOURCE
 
-#include "out123_int.h"
+#include "../out123_int.h"
 
 #ifdef OPENAL_SUBDIR_OPENAL
 	#include <OpenAL/al.h>
diff --git a/src/libout123/modules/os2.c b/src/libout123/modules/os2.c
index d6f246dc..150456a1 100644
--- a/src/libout123/modules/os2.c
+++ b/src/libout123/modules/os2.c
@@ -6,7 +6,7 @@
 	initially written by Samuel Audet
 */
 
-#include "out123_int.h"
+#include "../out123_int.h"
 
 #undef VERSION /* The VERSION macro conflicts with the OS/2 multimedia headers */
 
diff --git a/src/libout123/modules/oss.c b/src/libout123/modules/oss.c
index 2418e1d8..711ef08a 100644
--- a/src/libout123/modules/oss.c
+++ b/src/libout123/modules/oss.c
@@ -6,7 +6,7 @@
 	initially written by Michael Hipp
 */
 
-#include "out123_int.h"
+#include "../out123_int.h"
 
 #include <sys/ioctl.h>
 #include <fcntl.h>
diff --git a/src/libout123/modules/portaudio.c b/src/libout123/modules/portaudio.c
index 53354952..389b541e 100644
--- a/src/libout123/modules/portaudio.c
+++ b/src/libout123/modules/portaudio.c
@@ -9,7 +9,7 @@
 /* Need usleep(). */
 #define _DEFAULT_SOURCE
 #define _BSD_SOURCE
-#include "out123_int.h"
+#include "../out123_int.h"
 #include <math.h>
 #include <portaudio.h>
 
@@ -19,7 +19,7 @@
 
 /* Including the sfifo code locally, to avoid module linkage issues. */
 #define SFIFO_STATIC
-#include "sfifo.c"
+#include "../sfifo.c"
 
 #include "debug.h"
 
diff --git a/src/libout123/modules/pulse.c b/src/libout123/modules/pulse.c
index b090767c..b3922b81 100644
--- a/src/libout123/modules/pulse.c
+++ b/src/libout123/modules/pulse.c
@@ -6,7 +6,7 @@
 	initially written by Nicholas J. Humfrey
 */
 
-#include "out123_int.h"
+#include "../out123_int.h"
 
 #include <stdlib.h>
 #include <stdio.h>
diff --git a/src/libout123/modules/qsa.c b/src/libout123/modules/qsa.c
index 48b69c93..05c9ec29 100644
--- a/src/libout123/modules/qsa.c
+++ b/src/libout123/modules/qsa.c
@@ -7,7 +7,7 @@
     written by Mike Gorchak <mike.gorchak.qnx@gmail.com>
 */
 
-#include "out123_int.h"
+#include "../out123_int.h"
 #include <errno.h>
 
 #include <stdint.h>
diff --git a/src/libout123/modules/sdl.c b/src/libout123/modules/sdl.c
index 47da5c2f..987829a1 100644
--- a/src/libout123/modules/sdl.c
+++ b/src/libout123/modules/sdl.c
@@ -10,7 +10,7 @@
 #define _XOPEN_SOURCE 500
 #define _DEFAULT_SOURCE
 
-#include "out123_int.h"
+#include "../out123_int.h"
 #include <math.h>
 
 #include <SDL.h>
@@ -21,7 +21,7 @@
 
 /* Including the sfifo code locally, to avoid module linkage issues. */
 #define SFIFO_STATIC
-#include "sfifo.c"
+#include "../sfifo.c"
 
 #include "debug.h"
 
diff --git a/src/libout123/modules/sgi.c b/src/libout123/modules/sgi.c
index 1ffe2cbe..7969f041 100644
--- a/src/libout123/modules/sgi.c
+++ b/src/libout123/modules/sgi.c
@@ -6,7 +6,7 @@
 	initially written (as it seems) by Thomas Woerner
 */
 
-#include "out123_int.h"
+#include "../out123_int.h"
 #include <fcntl.h>
 #include <dmedia/audio.h>
 #include "errno.h"
diff --git a/src/libout123/modules/sndio.c b/src/libout123/modules/sndio.c
index 2b67e13b..bd4add0e 100644
--- a/src/libout123/modules/sndio.c
+++ b/src/libout123/modules/sndio.c
@@ -17,7 +17,7 @@
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#include "out123_int.h"
+#include "../out123_int.h"
 
 #include <sndio.h>
 
diff --git a/src/libout123/modules/sun.c b/src/libout123/modules/sun.c
index 7dacea2c..8400e30d 100644
--- a/src/libout123/modules/sun.c
+++ b/src/libout123/modules/sun.c
@@ -6,7 +6,7 @@
 	initially written by Michael Hipp
 */
 
-#include "out123_int.h"
+#include "../out123_int.h"
 
 #ifdef HAVE_SYS_IOCTL_H
 #include <sys/ioctl.h>
diff --git a/src/libout123/modules/tinyalsa.c b/src/libout123/modules/tinyalsa.c
index 49e7c192..acc2c60f 100644
--- a/src/libout123/modules/tinyalsa.c
+++ b/src/libout123/modules/tinyalsa.c
@@ -7,7 +7,7 @@
 	initially written by Jarno Lehtinen <lehtinen@sci.fi>
 */
 
-#include "out123_int.h"
+#include "../out123_int.h"
 #include <errno.h>
 
 #include <tinyalsa/asoundlib.h>
diff --git a/src/libout123/modules/win32.c b/src/libout123/modules/win32.c
index eea00efb..77ae3457 100644
--- a/src/libout123/modules/win32.c
+++ b/src/libout123/modules/win32.c
@@ -9,7 +9,7 @@
     Closing buffer playback fixed by David Wohlferd <limegreensocks (*) yahoo dod com>
 */
 
-#include "out123_int.h"
+#include "../out123_int.h"
 #include <windows.h>
 #include "debug.h"
 
diff --git a/src/libout123/modules/win32_wasapi.c b/src/libout123/modules/win32_wasapi.c
index 43856489..59d4de08 100644
--- a/src/libout123/modules/win32_wasapi.c
+++ b/src/libout123/modules/win32_wasapi.c
@@ -14,7 +14,7 @@
 # define _WIN32_WINNT 0x0601
 #endif
 #define COBJMACROS 1
-#include "out123_int.h"
+#include "../out123_int.h"
 #include <inttypes.h>
 #include <initguid.h>
 #include <audioclient.h>
diff --git a/src/out123.c b/src/out123.c
index ac8e8c69..2adc936a 100644
--- a/src/out123.c
+++ b/src/out123.c
@@ -77,6 +77,7 @@ static void long_usage(int err);
 static void want_long_usage(char* arg, topt *opts);
 static void print_title(FILE* o);
 static void give_version(char* arg, topt *opts);
+static void give_libversion(char* arg, topt *);
 
 static int verbose = 0;
 static int quiet = FALSE;
@@ -658,6 +659,7 @@ topt opts[] = {
 	{'?', "help",            0,  want_usage, 0,           0 },
 	{0 , "longhelp" ,        0,  want_long_usage, 0,      0 },
 	{0 , "version" ,         0,  give_version, 0,         0 },
+	{0 , "libversion" ,      0,  give_libversion, 0,      0 },
 	{'e', "encoding", GLO_ARG|GLO_CHAR, 0, &encoding_name, 0},
 	{0, "endian",     GLO_ARG|GLO_CHAR, set_out_endian, 0, 0},
 	{'E', "inputenc", GLO_ARG|GLO_CHAR, 0, &inputenc_name, 0},
@@ -1939,3 +1941,14 @@ static void give_version(char* arg, topt *opts)
 	fprintf(stdout, "out123 "MPG123_VERSION"\n");
 	safe_exit(0);
 }
+
+static void give_libversion(char* arg, topt *opts)
+{
+	unsigned int pl = 0;
+	unsigned int al = out123_libversion(&pl);
+	printf("libout123 from mpg123 %s, API version %u, patchlevel %u\n", out123_distversion(NULL, NULL, NULL), al, pl);
+	al = syn123_libversion(&pl);
+	printf("libsyn123 from mpg123 %s, API version %u, patchlevel %u\n", syn123_distversion(NULL, NULL, NULL), al, pl);
+	safe_exit(0);
+}
+
diff --git a/src/tests/Makemodule.am b/src/tests/Makemodule.am
index 047c777b..6314ca03 100644
--- a/src/tests/Makemodule.am
+++ b/src/tests/Makemodule.am
@@ -58,25 +58,25 @@ endif
 src_tests_volume_SOURCES = \
   src/tests/volume.c
 src_tests_volume_LDADD = \
-  src/libsyn123/libsyn123.la
+  $(LIBSYN123)
 
 src_tests_decode_fixed_SOURCES = \
   src/tests/decode_fixed.c
 src_tests_decode_fixed_LDADD = \
   src/compat/libcompat.la \
-  src/libmpg123/libmpg123.la
+  $(LIBMPG123)
 
 src_tests_seek_whence_SOURCES = \
   src/tests/seek_whence.c
 src_tests_seek_whence_LDADD = \
   src/compat/libcompat.la \
-  src/libmpg123/libmpg123.la
+  $(LIBMPG123)
 
 src_tests_seek_accuracy_SOURCES = \
   src/tests/seek_accuracy.c
 src_tests_seek_accuracy_LDADD = \
   src/compat/libcompat.la \
-  src/libmpg123/libmpg123.la
+  $(LIBMPG123)
 
 src_tests_noise_SOURCES = \
   src/tests/noise.c \
@@ -89,20 +89,20 @@ src_tests_sweeper_SOURCES = \
   src/tests/sweeper.c
 src_tests_sweeper_LDADD = \
   src/compat/libcompat.la \
-  src/libsyn123/libsyn123.la \
-  src/libout123/libout123.la
+  $(LIBSYN123) \
+  $(LIBOUT123)
 
 src_tests_resample_total_SOURCES = \
   src/tests/resample_total.c
 src_tests_resample_total_LDADD = \
-  src/libsyn123/libsyn123.la
+  $(LIBSYN123)
 
 src_tests_text_SOURCES = \
   src/tests/text.c \
   src/tests/testtext.h
 src_tests_text_LDADD = \
   src/compat/libcompat.la \
-  src/libmpg123/libmpg123.la
+  $(LIBMPG123)
 
 src_tests_textprint_SOURCES =\
   src/tests/textprint.c \
@@ -111,10 +111,10 @@ src_tests_textprint_SOURCES =\
 
 src_tests_textprint_LDADD = \
   src/compat/libcompat.la \
-  src/libmpg123/libmpg123.la
+  $(LIBMPG123)
 
 src_tests_plain_id3_SOURCES = \
   src/tests/plain_id3.c
 src_tests_plain_id3_LDADD = \
   src/compat/libcompat.la \
-  src/libmpg123/libmpg123.la
+  $(LIBMPG123)