rtbuf/rtbuf

diff --git a/config.subr b/config.subr
index 3757f9f..08c082f 100644
--- a/config.subr
+++ b/config.subr
@@ -1,10 +1,8 @@
 #!/bin/sh
 set -e
 
-SRCDIR="$(dirname $0)"
-
 o_rule() {
-    $CC $CPPFLAGS -M "$1" || { echo "$1" | sed -e 's/^\(.*\)\.c$/\1.o: \1.c/'; }
+    "$CC" $CPPFLAGS $CFLAGS -M "$1" || { echo "$1" | sed -e 's/^\(.*\)\.c$/\1.o: \1.c/'; }
 }
 
 lo_rule() {
@@ -140,11 +138,67 @@ rtbuf_library() {
     done
 }
 
+check_glfw3() {
+    LOG=.lib.glfw3.config.log
+    OLD_CFLAGS=$CFLAGS
+    OLD_LIBS=$LIBS
+    CFLAGS="$CFLAGS $(pkg-config --cflags glfw3)"
+    LIBS="$LIBS $(pkg-config --libs glfw3)"
+    echo "$CC" $CPPFLAGS $CFLAGS "${LIB_SRCDIR}/glfw3/config.c" -o /dev/null ${LDFLAGS} ${LIBS} > $LOG
+    if   "$CC" $CPPFLAGS $CFLAGS "${LIB_SRCDIR}/glfw3/config.c" -o /dev/null ${LDFLAGS} ${LIBS} >> $LOG 2>&1; then
+        HAVE_GLFW3=Yes
+    else
+        HAVE_GLFW3=No
+        CFLAGS=$OLD_CFLAGS
+        LIBS=$OLD_LIBS
+    fi
+    echo "Checking library glfw3: $HAVE_GLFW3" >&2
+    echo "HAVE_GLFW3 = $HAVE_GLFW3" >> ${CONFIG_MK}
+}
+
+check_portaudio() {
+    LOG=.lib.portaudio.config.log
+    OLD_CFLAGS=$CFLAGS
+    OLD_LIBS=$LIBS
+    CFLAGS="$CFLAGS $(pkg-config --cflags portaudio-2.0)"
+    LIBS="$LIBS $(pkg-config --libs portaudio-2.0)"
+    echo "$CC" $CPPFLAGS $CFLAGS "${LIB_SRCDIR}/portaudio/config.c" -o /dev/null ${LDFLAGS} ${LIBS} > $LOG
+    if   "$CC" $CPPFLAGS $CFLAGS "${LIB_SRCDIR}/portaudio/config.c" -o /dev/null ${LDFLAGS} ${LIBS} >> $LOG 2>&1; then
+        HAVE_PORTAUDIO=Yes
+    else
+        HAVE_PORTAUDIO=No
+        CFLAGS=$OLD_CFLAGS
+        LIBS=$OLD_LIBS
+    fi
+    echo "Checking library portaudio: $HAVE_PORTAUDIO" >&2
+    echo "HAVE_PORTAUDIO = $HAVE_PORTAUDIO" >> ${CONFIG_MK}
+}
+
 check_sndio() {
-    if "$CC" $CPPFLAGS $CFLAGS -c "${SRCDIR}/lib/sndio/config.c" -o /dev/null; then
+    LOG=.lib.sndio.config.log
+    if "$CC" $CPPFLAGS $CFLAGS "${LIB_SRCDIR}/sndio/config.c" -o /dev/null ${LDFLAGS} -lsndio > $LOG 2>&1; then
         HAVE_SNDIO=Yes
     else
         HAVE_SNDIO=No
     fi
+    echo "Checking library sndio: $HAVE_SNDIO" >&2
     echo "HAVE_SNDIO = $HAVE_SNDIO" >> ${CONFIG_MK}
 }
+
+type_prog() {
+    TYPE_SRC="$1_type.c"
+    TYPE_PROG="$(c2prog "$TYPE_SRC")"
+    TYPE_H="${TYPE_PROG}.h"
+    echo >> ${CONFIG_MK}
+    prog_rule "$TYPE_SRC" >> ${CONFIG_MK}
+    echo "\t\${CC} \${CPPFLAGS} \${CFLAGS} $TYPE_SRC -o $TYPE_PROG" >> ${CONFIG_MK}
+    echo >> ${CONFIG_MK}
+    echo "${TYPE_H}: $TYPE_PROG" >> ${CONFIG_MK}
+    echo "\t./$TYPE_PROG > $TYPE_H" >> ${CONFIG_MK}
+    echo >> ${CONFIG_MK}
+    echo "CLEANFILES += $TYPE_PROG $TYPE_H" >> ${CONFIG_MK}
+    if ! test -f "${TYPE_H}"; then
+        touch "${TYPE_H}"
+    fi
+    TYPES="$TYPES $TYPE_H"
+}
diff --git a/lib/.lib.portaudio.config.log b/lib/.lib.portaudio.config.log
new file mode 100644
index 0000000..565966a
--- /dev/null
+++ b/lib/.lib.portaudio.config.log
@@ -0,0 +1 @@
+cc -DGL_SILENCE_DEPRECATION=1 -DNDEBUG -O3 -W -Wall -Werror -std=c89 -pedantic -I/opt/homebrew/Cellar/portaudio/19.7.0/include ./portaudio/config.c -o /dev/null -L/opt/homebrew/Cellar/portaudio/19.7.0/lib -lportaudio -framework CoreAudio -framework AudioToolbox -framework AudioUnit -framework CoreFoundation -framework CoreServices
diff --git a/lib/.lib.sndio.config.log b/lib/.lib.sndio.config.log
new file mode 100644
index 0000000..04b5090
--- /dev/null
+++ b/lib/.lib.sndio.config.log
@@ -0,0 +1,52 @@
+./sndio/config.c:1:10: error: 'sndio.h' file not found with <angled> include; use "quotes" instead
+#include <sndio.h>
+         ^~~~~~~~~
+         "sndio.h"
+In file included from ./sndio/config.c:1:
+./sndio/sndio.h:19:10: error: 'sndio.h' file not found with <angled> include; use "quotes" instead
+#include <sndio.h>
+         ^~~~~~~~~
+         "sndio.h"
+./sndio/sndio.h:22:28: error: declaration of 'struct sio_par' will not be visible outside of this function [-Werror,-Wvisibility]
+void print_sio_par (struct sio_par *par);
+                           ^
+./sndio/sndio.h:35:52: error: use of undeclared identifier 'RTBUF_SIGNAL_SAMPLES'
+typedef t_rtbuf_sndio_sample t_rtbuf_sndio_samples[RTBUF_SNDIO_SAMPLES];
+                                                   ^
+./sndio/sndio.h:32:27: note: expanded from macro 'RTBUF_SNDIO_SAMPLES'
+  (RTBUF_SNDIO_CHANNELS * RTBUF_SIGNAL_SAMPLES)
+                          ^
+./sndio/sndio.h:39:3: error: unknown type name 't_rtbuf_signal'
+  t_rtbuf_signal signal[RTBUF_SNDIO_CHANNELS];
+  ^
+./sndio/sndio.h:44:24: error: unknown type name 's_rtbuf'
+int rtbuf_sndio_input (s_rtbuf *rtb);
+                       ^
+./sndio/sndio.h:45:30: error: unknown type name 's_rtbuf'
+int rtbuf_sndio_input_start (s_rtbuf *rtb);
+                             ^
+./sndio/sndio.h:46:29: error: unknown type name 's_rtbuf'
+int rtbuf_sndio_input_stop (s_rtbuf *rtb);
+                            ^
+./sndio/sndio.h:50:18: error: field has incomplete type 'struct sio_par'
+  struct sio_par want;
+                 ^
+./sndio/sndio.h:50:10: note: forward declaration of 'struct sio_par'
+  struct sio_par want;
+         ^
+./sndio/sndio.h:51:18: error: field has incomplete type 'struct sio_par'
+  struct sio_par have;
+                 ^
+./sndio/sndio.h:50:10: note: forward declaration of 'struct sio_par'
+  struct sio_par want;
+         ^
+./sndio/sndio.h:64:25: error: unknown type name 's_rtbuf'
+int rtbuf_sndio_output (s_rtbuf *rtb);
+                        ^
+./sndio/sndio.h:65:31: error: unknown type name 's_rtbuf'
+int rtbuf_sndio_output_start (s_rtbuf *rtb);
+                              ^
+./sndio/sndio.h:66:30: error: unknown type name 's_rtbuf'
+int rtbuf_sndio_output_stop (s_rtbuf *rtb);
+                             ^
+13 errors generated.
diff --git a/lib/Makefile.am b/lib/Makefile.am
deleted file mode 100644
index 4fbcc6a..0000000
--- a/lib/Makefile.am
+++ /dev/null
@@ -1,86 +0,0 @@
-CLEANFILES =
-rtbuf_includedir = $(includedir)/rtbuf
-rtbuf_include_HEADERS =
-rtbuf_libdir = $(libdir)/rtbuf
-rtbuf_lib_LTLIBRARIES =
-lib_LTLIBRARIES =
-
-SUBDIRS = . signal dynamic glfw3 portaudio sndio synth # reverb
-
-# music
-
-music_type: music_type.c include/rtbuf/music.h
-	${CC} ${CFLAGS} ${CPPFLAGS} -o music_type music_type.c
-include/rtbuf/music_type.h: music_type
-	./music_type > include/rtbuf/music_type.h
-CLEANFILES += music_type include/rtbuf/music_type.h
-music.lo: include/rtbuf/music_type.h
-
-lib_LTLIBRARIES += librtbuf_music.la
-librtbuf_music_la_LIBADD = ${MUSIC_LIBS} ../librtbuf/librtbuf.la
-librtbuf_music_la_LDFLAGS = -no-undefined -module
-librtbuf_music_la_SOURCES = \
-	music.c
-
-rtbuf_include_HEADERS += \
-	include/rtbuf/music.h \
-	include/rtbuf/music_type.h
-
-# portaudio
-
-if ENABLE_PORTAUDIO
-portaudio_type: portaudio_type.c include/rtbuf/portaudio.h
-	${CC} ${CFLAGS} ${CPPFLAGS} -o portaudio_type portaudio_type.c
-include/rtbuf/portaudio_type.h: portaudio_type
-	./portaudio_type > include/rtbuf/portaudio_type.h
-CLEANFILES += portaudio_type include/rtbuf/portaudio_type.h
-all-local: include/rtbuf/portaudio_type.h
-endif # ENABLE_PORTAUDIO
-
-# reverb
-
-reverb_type: reverb_type.c include/rtbuf/reverb.h
-	${CC} ${CFLAGS} ${CPPFLAGS} -o reverb_type reverb_type.c
-include/rtbuf/reverb_type.h: reverb_type
-	./reverb_type > include/rtbuf/reverb_type.h
-CLEANFILES += reverb_type include/rtbuf/reverb_type.h
-reverb.lo: include/rtbuf/reverb_type.h
-
-# signal
-
-signal_type: signal_type.c include/rtbuf/signal.h
-	${CC} ${CFLAGS} ${CPPFLAGS} -o signal_type signal_type.c
-include/rtbuf/signal_type.h: signal_type
-	./signal_type > include/rtbuf/signal_type.h
-CLEANFILES += signal_type include/rtbuf/signal_type.h
-signal.lo: include/rtbuf/signal_type.h
-
-lib_LTLIBRARIES += librtbuf_signal.la
-librtbuf_signal_la_LIBADD = ${SIGNAL_LIBS} ../librtbuf/librtbuf.la
-librtbuf_signal_la_LDFLAGS = -no-undefined -module
-librtbuf_signal_la_SOURCES = \
-	signal.c
-
-rtbuf_include_HEADERS += \
-	include/rtbuf/signal.h \
-	include/rtbuf/signal_type.h
-
-# sndio
-
-if ENABLE_SNDIO
-sndio_type: sndio_type.c include/rtbuf/sndio.h
-	${CC} ${CFLAGS} ${CPPFLAGS} -o sndio_type sndio_type.c
-include/rtbuf/sndio_type.h: sndio_type
-	./sndio_type > include/rtbuf/sndio_type.h
-CLEANFILES += sndio_type include/rtbuf/sndio_type.h
-all-local: include/rtbuf/sndio_type.h
-endif # ENABLE_SNDIO
-
-# synth
-
-synth_type: synth_type.c include/rtbuf/synth.h include/rtbuf/music_type.h include/rtbuf/signal_type.h
-	${CC} ${CFLAGS} ${CPPFLAGS} -o synth_type synth_type.c
-include/rtbuf/synth_type.h: synth_type
-	./synth_type > include/rtbuf/synth_type.h
-CLEANFILES += synth_type include/rtbuf/synth_type.h
-all-local: include/rtbuf/synth_type.h
diff --git a/lib/configure b/lib/configure
index 4ea44f3..4818503 100755
--- a/lib/configure
+++ b/lib/configure
@@ -3,7 +3,7 @@ set -e
 
 . ../config.subr
 
-TYPE_SOURCES="$(ls *_type.c | tr '\n' ' ')"
+LIB_SRCDIR="$(dirname $0)"
 
 SOURCES="$(ls *.c | grep -Ev '_type.c$' | tr '\n' ' ')"
 
@@ -18,43 +18,33 @@ else
     CFLAGS="-DNDEBUG -O3"
 fi
 CFLAGS="$CFLAGS -W -Wall -Werror -std=c89 -pedantic"
-CFLAGS="$CFLAGS $(pkg-config --cflags portaudio-2.0)"
-echo "CFLAGS = $CFLAGS" >> ${CONFIG_MK}
-
-echo "LDFLAGS = $LDFLAGS" >> ${CONFIG_MK}
 
 LIBS=""
-echo "LIBS = $LIBS" >> ${CONFIG_MK}
 
 check_sndio
 if ! test "x$HAVE_SNDIO" = "xYes"; then
     DIRS="$(echo "$DIRS" | grep -v sndio)"
 fi
 
-TYPES=
+check_portaudio
+if ! test "x$HAVE_PORTAUDIO" = "xYes"; then
+    DIRS="$(echo "$DIRS" | grep -v portaudio)"
+fi
 
-for TYPE_SRC in $TYPE_SOURCES; do
-    TYPE_PROG="$(c2prog "$TYPE_SRC")"
-    TYPE_H="${TYPE_PROG}.h"
-    TYPES="$TYPES $TYPE_H"
-    echo > "$TYPE_H"
-done
+echo "CFLAGS = $CFLAGS" >> ${CONFIG_MK}
+echo "LDFLAGS = $LDFLAGS" >> ${CONFIG_MK}
+echo "LIBS = $LIBS" >> ${CONFIG_MK}
 
-echo >> ${CONFIG_MK}
-echo "types:${TYPES}" >> ${CONFIG_MK}
+TYPES=
+type_prog music
+if test "x$HAVE_PORTAUDIO" = "xYes"; then
+    type_prog portaudio
+fi
+type_prog reverb
+type_prog signal
+type_prog synth
 
-for TYPE_SRC in $TYPE_SOURCES; do
-    TYPE_PROG="$(c2prog "$TYPE_SRC")"
-    TYPE_H="${TYPE_PROG}.h"
-    echo >> ${CONFIG_MK}
-    prog_rule "$TYPE_SRC" >> ${CONFIG_MK}
-    echo "\t\${CC} \${CPPFLAGS} \${CFLAGS} $TYPE_SRC -o $TYPE_PROG" >> ${CONFIG_MK}
-    echo >> ${CONFIG_MK}
-    echo "${TYPE_H}: $TYPE_PROG" >> ${CONFIG_MK}
-    echo "\t./$TYPE_PROG > $TYPE_H" >> ${CONFIG_MK}
-    echo >> ${CONFIG_MK}
-    echo "CLEANFILES += $TYPE_PROG $TYPE_H" >> ${CONFIG_MK}
-done
+echo "types:${TYPES}" >> ${CONFIG_MK}
 
 LIBRARIES=
 
@@ -101,9 +91,3 @@ done
 for DIR in $DIRS; do
     (cd $DIR && ./configure)
 done
-
-for TYPE_SRC in $TYPE_SOURCES; do
-    TYPE_PROG="$(c2prog "$TYPE_SRC")"
-    TYPE_H="${TYPE_PROG}.h"
-    rm "$TYPE_H"
-done
diff --git a/lib/glfw3/configure b/lib/glfw3/configure
index 50aa1c3..21edc40 100755
--- a/lib/glfw3/configure
+++ b/lib/glfw3/configure
@@ -8,6 +8,7 @@ SOURCES="$(ls *.c | tr '\n' ' ')"
 require_pkg_config
 
 CPPFLAGS="$CPPFLAGS $(pkg-config --cflags-only-I glfw3)"
+CPPFLAGS="$CPPFLAGS -DGL_SILENCE_DEPRECATION=1"
 echo "CPPFLAGS = $CPPFLAGS" >> ${CONFIG_MK}
 
 if [ x"$DEBUG" = x"yes" ]; then
diff --git a/lib/glfw3/keyboard.c b/lib/glfw3/keyboard.c
index 00a966e..bcfdc38 100644
--- a/lib/glfw3/keyboard.c
+++ b/lib/glfw3/keyboard.c
@@ -231,7 +231,9 @@ void rtbuf_glfw3_keyboard_close (GLFWwindow *window)
 
 GLFWwindow * rtbuf_glfw3_keyboard_window (s_rtbuf *rtb)
 {
-  GLFWwindow *window = glfwCreateWindow(RTBUF_GLFW3_KEYBOARD_WIDTH,
+  GLFWwindow *window;
+  glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
+  window = glfwCreateWindow(RTBUF_GLFW3_KEYBOARD_WIDTH,
                                         RTBUF_GLFW3_KEYBOARD_HEIGHT,
                                         "rtbuf_glfw3_keyboard",
                                         NULL, NULL);
diff --git a/lib/portaudio/.lib.portaudio.config.log b/lib/portaudio/.lib.portaudio.config.log
new file mode 100644
index 0000000..ea82422
--- /dev/null
+++ b/lib/portaudio/.lib.portaudio.config.log
@@ -0,0 +1 @@
+cc -DGL_SILENCE_DEPRECATION=1 -DNDEBUG -O3 -W -Wall -Werror -std=c89 -pedantic -I/opt/homebrew/Cellar/portaudio/19.7.0/include ./../portaudio/config.c -o /dev/null -L/opt/homebrew/Cellar/portaudio/19.7.0/lib -lportaudio -framework CoreAudio -framework AudioToolbox -framework AudioUnit -framework CoreFoundation -framework CoreServices
diff --git a/lib/portaudio/Makefile.am b/lib/portaudio/Makefile.am
deleted file mode 100644
index 5bebc5d..0000000
--- a/lib/portaudio/Makefile.am
+++ /dev/null
@@ -1,15 +0,0 @@
-if ENABLE_PORTAUDIO
-CLEANFILES =
-rtbuf_includedir = $(includedir)/rtbuf/portaudio
-rtbuf_include_HEADERS =
-rtbuf_libdir = $(libdir)/rtbuf/portaudio
-rtbuf_lib_LTLIBRARIES =
-
-rtbuf_lib_LTLIBRARIES += input.la
-input_la_LDFLAGS = -no-undefined -module -shared
-input_la_LIBADD = ${PORTAUDIO_LIBS} ../librtbuf_signal.la
-
-rtbuf_lib_LTLIBRARIES += output.la
-output_la_LDFLAGS = -no-undefined -module -shared
-output_la_LIBADD = ${PORTAUDIO_LIBS} ../librtbuf_signal.la
-endif
diff --git a/lib/portaudio/config.c b/lib/portaudio/config.c
new file mode 100644
index 0000000..23db5b2
--- /dev/null
+++ b/lib/portaudio/config.c
@@ -0,0 +1,6 @@
+#include <portaudio.h>
+
+int main ()
+{
+  return 0;
+}
diff --git a/lib/portaudio/configure b/lib/portaudio/configure
index c3a0a4f..447e4d5 100755
--- a/lib/portaudio/configure
+++ b/lib/portaudio/configure
@@ -3,12 +3,13 @@ set -e
 
 . ../../config.subr
 
-SOURCES="$(ls *.c | tr '\n' ' ')"
+SOURCES="input.c output.c"
+
+LIB_SRCDIR="$(dirname "$0")/.."
 
 require_pkg_config
 
-CPPFLAGS="$CPPFLAGS $(pkg-config --cflags-only-I portaudio-2.0)"
-echo "CPPFLAGS = $CPPFLAGS" >> ${CONFIG_MK}
+CPPFLAGS="$CPPFLAGS"
 
 if [ x"$DEBUG" = x"yes" ]; then
     CFLAGS="-DDEBUG -O0 -ggdb"
@@ -16,13 +17,14 @@ else
     CFLAGS="-DNDEBUG -O3"
 fi
 CFLAGS="$CFLAGS -W -Wall -Werror -std=c89 -pedantic"
-CFLAGS="$CFLAGS $(pkg-config --cflags portaudio-2.0)"
-echo "CFLAGS = $CFLAGS" >> ${CONFIG_MK}
 
-echo "LDFLAGS = $LDFLAGS" >> ${CONFIG_MK}
+check_portaudio 
 
 LIBS="../../librtbuf/librtbuf.la ../librtbuf_signal.la"
-LIBS="$LIBS $(pkg-config --libs portaudio-2.0)"
+
+echo "CPPFLAGS = $CPPFLAGS" >> ${CONFIG_MK}
+echo "CFLAGS = $CFLAGS" >> ${CONFIG_MK}
+echo "LDFLAGS = $LDFLAGS" >> ${CONFIG_MK}
 echo "LIBS = $LIBS" >> ${CONFIG_MK}
 
 rtbuf_library portaudio
diff --git a/lib/signal/Makefile.am b/lib/signal/Makefile.am
deleted file mode 100644
index e796580..0000000
--- a/lib/signal/Makefile.am
+++ /dev/null
@@ -1,61 +0,0 @@
-bandpass2_la_LIBADD = ${SIGNAL_LIBS} ../librtbuf_signal.la
-delay_la_LIBADD = ${SIGNAL_LIBS} ../librtbuf_signal.la
-equalizer10_la_LIBADD = ${SIGNAL_LIBS} ../librtbuf_signal.la
-
-rtbuf_lib_LTLIBRARIES += flanger.la
-flanger_la_LDFLAGS = -no-undefined -module
-flanger_la_LIBADD = ${SIGNAL_LIBS} ../librtbuf_signal.la
-
-rtbuf_lib_LTLIBRARIES += hipass.la
-hipass_la_LDFLAGS = -no-undefined -module
-hipass_la_LIBADD = ${SIGNAL_LIBS} ../librtbuf_signal.la
-
-rtbuf_lib_LTLIBRARIES += hipass2.la
-hipass2_la_LDFLAGS = -no-undefined -module
-hipass2_la_LIBADD = ${SIGNAL_LIBS} ../librtbuf_signal.la
-
-rtbuf_lib_LTLIBRARIES += hipass3.la
-hipass3_la_LDFLAGS = -no-undefined -module
-hipass3_la_LIBADD = ${SIGNAL_LIBS} ../librtbuf_signal.la
-
-rtbuf_lib_LTLIBRARIES += hipass4.la
-hipass4_la_LDFLAGS = -no-undefined -module
-hipass4_la_LIBADD = ${SIGNAL_LIBS} ../librtbuf_signal.la
-
-rtbuf_lib_LTLIBRARIES += hipass5.la
-hipass5_la_LDFLAGS = -no-undefined -module
-hipass5_la_LIBADD = ${SIGNAL_LIBS} ../librtbuf_signal.la
-
-rtbuf_lib_LTLIBRARIES += lowpass.la
-lowpass_la_LDFLAGS = -no-undefined -module
-lowpass_la_LIBADD = ${SIGNAL_LIBS} ../librtbuf_signal.la
-
-rtbuf_lib_LTLIBRARIES += lowpass2.la
-lowpass2_la_LDFLAGS = -no-undefined -module
-lowpass2_la_LIBADD = ${SIGNAL_LIBS} ../librtbuf_signal.la
-
-rtbuf_lib_LTLIBRARIES += lowpass3.la
-lowpass3_la_LDFLAGS = -no-undefined -module
-lowpass3_la_LIBADD = ${SIGNAL_LIBS} ../librtbuf_signal.la
-
-rtbuf_lib_LTLIBRARIES += lowpass4.la
-lowpass4_la_LDFLAGS = -no-undefined -module
-lowpass4_la_LIBADD = ${SIGNAL_LIBS} ../librtbuf_signal.la
-
-rtbuf_lib_LTLIBRARIES += lowpass5.la
-lowpass5_la_LDFLAGS = -no-undefined -module
-lowpass5_la_LIBADD = ${SIGNAL_LIBS} ../librtbuf_signal.la
-
-rtbuf_lib_LTLIBRARIES += sawtooth.la
-sawtooth_la_LDFLAGS = -no-undefined -module
-sawtooth_la_LIBADD = ${SIGNAL_LIBS} ../librtbuf_signal.la
-
-rtbuf_lib_LTLIBRARIES += sinus.la
-sinus_la_LDFLAGS = -no-undefined -module
-sinus_la_LIBADD = ${SIGNAL_LIBS} ../librtbuf_signal.la
-
-rtbuf_lib_LTLIBRARIES += square.la
-square_la_LDFLAGS = -no-undefined -module
-square_la_LIBADD = ${SIGNAL_LIBS} ../librtbuf_signal.la
-
-endif
diff --git a/lib/sndio/Makefile.am b/lib/sndio/Makefile.am
deleted file mode 100644
index 36f3f73..0000000
--- a/lib/sndio/Makefile.am
+++ /dev/null
@@ -1,17 +0,0 @@
-if ENABLE_SNDIO
-
-CLEANFILES =
-rtbuf_includedir = $(includedir)/rtbuf/sndio
-rtbuf_include_HEADERS =
-rtbuf_libdir = $(libdir)/rtbuf/sndio
-rtbuf_lib_LTLIBRARIES =
-
-rtbuf_lib_LTLIBRARIES += input.la
-input_la_LDFLAGS = -no-undefined -module -shared
-input_la_LIBADD = ${SNDIO_LIBS} ../librtbuf_signal.la
-
-rtbuf_lib_LTLIBRARIES += output.la
-output_la_LDFLAGS = -no-undefined -module -shared
-output_la_LIBADD = ${SNDIO_LIBS} ../librtbuf_signal.la
-
-endif
diff --git a/lib/sndio/config.c b/lib/sndio/config.c
index 53c5fdf..ac503b3 100644
--- a/lib/sndio/config.c
+++ b/lib/sndio/config.c
@@ -1 +1 @@
-#include <stdio.h>
+#include <sndio.h>
diff --git a/lib/sndio/configure b/lib/sndio/configure
index 7495f7d..568b147 100755
--- a/lib/sndio/configure
+++ b/lib/sndio/configure
@@ -21,7 +21,7 @@ echo "LDFLAGS = $LDFLAGS" >> ${CONFIG_MK}
 LIBS="-lsndio ../librtbuf_signal.la"
 echo "LIBS = $LIBS" >> ${CONFIG_MK}
 
-check_sndio()
+check_sndio
 
 if test "x$HAVE_SNDIO" = "xYes"; then
     rtbuf_library sndio
diff --git a/lib/sndio/sndio_type.c b/lib/sndio/sndio_type.c
deleted file mode 100644
index d6dcf44..0000000
--- a/lib/sndio/sndio_type.c
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Copyright 2018 Thomas de Grivel <thoxdg@gmail.com> +33614550127
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include <stdio.h>
-#include "../librtbuf/rtbuf.h"
-#include "sndio.h"
-
-int main ()
-{
-  printf("/* file generated by rtbuf_sndio_type */\n");
-  printf("#ifndef RTBUF_SNDIO_TYPE_H\n"
-         "#define RTBUF_SNDIO_TYPE_H\n"
-         "\n");
-  printf("#define RTBUF_SNDIO_SAMPLES_TYPE RTBUF_SNDIO_SAMPLE_TYPE"
-         " \"[%u]\"\n",
-         RTBUF_SNDIO_SAMPLES);
-  printf("#define RTBUF_SNDIO_OUTPUT_RESERVED_TYPE"
-         " \"char[%u]\"\n",
-         (unsigned int) RTBUF_SNDIO_OUTPUT_RESERVED_SIZE);
-  printf("\n"
-         "#endif\n");
-  return 0;
-}
diff --git a/lib/sndio_type.c b/lib/sndio_type.c
new file mode 100644
index 0000000..d6dcf44
--- /dev/null
+++ b/lib/sndio_type.c
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2018 Thomas de Grivel <thoxdg@gmail.com> +33614550127
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <stdio.h>
+#include "../librtbuf/rtbuf.h"
+#include "sndio.h"
+
+int main ()
+{
+  printf("/* file generated by rtbuf_sndio_type */\n");
+  printf("#ifndef RTBUF_SNDIO_TYPE_H\n"
+         "#define RTBUF_SNDIO_TYPE_H\n"
+         "\n");
+  printf("#define RTBUF_SNDIO_SAMPLES_TYPE RTBUF_SNDIO_SAMPLE_TYPE"
+         " \"[%u]\"\n",
+         RTBUF_SNDIO_SAMPLES);
+  printf("#define RTBUF_SNDIO_OUTPUT_RESERVED_TYPE"
+         " \"char[%u]\"\n",
+         (unsigned int) RTBUF_SNDIO_OUTPUT_RESERVED_SIZE);
+  printf("\n"
+         "#endif\n");
+  return 0;
+}
diff --git a/lib/synth/Makefile.am b/lib/synth/Makefile.am
deleted file mode 100644
index 73e81a7..0000000
--- a/lib/synth/Makefile.am
+++ /dev/null
@@ -1,13 +0,0 @@
-CLEANFILES =
-rtbuf_includedir = $(includedir)/rtbuf/synth
-rtbuf_include_HEADERS =
-rtbuf_libdir = $(libdir)/rtbuf/synth
-rtbuf_lib_LTLIBRARIES =
-
-rtbuf_lib_LTLIBRARIES += adsr.la
-adsr_la_LDFLAGS = -no-undefined -module -shared
-adsr_la_LIBADD = ../librtbuf_signal.la
-
-rtbuf_lib_LTLIBRARIES += synth.la
-synth_la_LDFLAGS = -no-undefined -module -shared
-synth_la_LIBADD = ../librtbuf_music.la ../librtbuf_signal.la