Improved build for Mac
https://github.com/waywardgeek/sonic/commit/eebb020958f0fa84ee831a55f7158cee8d108819
--- Makefile.orig	2021-08-17 17:58:09.000000000 -0500
+++ Makefile	2021-08-17 17:58:40.000000000 -0500
@@ -5,22 +5,30 @@
 # safe.  We call malloc, and older Linux versions only linked in the thread-safe
 # malloc if -pthread is specified.
 
-SONAME=soname
+PREFIX=/usr/local
+BINDIR=$(PREFIX)/bin
+LIBDIR=$(PREFIX)/lib
+INCDIR=$(PREFIX)/include
+
+SONAME=-soname,
+SHARED_OPT=-shared
+LIB_NAME=libsonic.so
+LIB_TAG=.0.2.0
+
 UNAME := $(shell uname)
 ifeq ($(UNAME), Darwin)
-  SONAME=install_name
+  SONAME=-install_name,$(LIBDIR)/
+  SHARED_OPT=-dynamiclib
+  LIB_NAME=libsonic.dylib
+  LIB_TAG=
 endif
 CFLAGS ?= -O3
 CFLAGS += -Wall -ansi -fPIC -pthread
-LIB_TAG=0.2.0
-CC=gcc
-PREFIX=/usr
-LIBDIR=$(PREFIX)/lib
 
-all: sonic libsonic.so.$(LIB_TAG) libsonic.a
+all: sonic $(LIB_NAME)$(LIB_TAG) libsonic.a
 
-sonic: wave.o main.o libsonic.so.$(LIB_TAG)
-	$(CC) $(CFLAGS) $(LDFLAGS) -o sonic wave.o main.o libsonic.so.$(LIB_TAG)
+sonic: wave.o main.o $(LIB_NAME)$(LIB_TAG)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o sonic wave.o main.o $(LIB_NAME)$(LIB_TAG)
 
 sonic.o: sonic.c sonic.h
 	$(CC) $(CPPFLAGS) $(CFLAGS) -c sonic.c
@@ -31,30 +39,37 @@
 main.o: main.c sonic.h wave.h
 	$(CC) $(CPPFLAGS) $(CFLAGS) -c main.c
 
-libsonic.so.$(LIB_TAG): sonic.o
-	$(CC) $(CFLAGS) $(LDFLAGS) -shared -Wl,-$(SONAME),libsonic.so.0 sonic.o -o libsonic.so.$(LIB_TAG)
-	ln -sf libsonic.so.$(LIB_TAG) libsonic.so
-	ln -sf libsonic.so.$(LIB_TAG) libsonic.so.0
+$(LIB_NAME)$(LIB_TAG): sonic.o
+	$(CC) $(CFLAGS) $(LDFLAGS) $(SHARED_OPT) -Wl,$(SONAME)$(LIB_NAME) sonic.o -o $(LIB_NAME)$(LIB_TAG)
+ifneq ($(UNAME), Darwin)
+	ln -sf $(LIB_NAME)$(LIB_TAG) $(LIB_NAME)
+	ln -sf $(LIB_NAME)$(LIB_TAG) $(LIB_NAME).0
+endif
 
 libsonic.a: sonic.o
 	$(AR) cqs libsonic.a sonic.o
 
-install: sonic libsonic.so.$(LIB_TAG) sonic.h
-	install -d $(DESTDIR)$(PREFIX)/bin $(DESTDIR)$(PREFIX)/include $(DESTDIR)$(PREFIX)/lib
-	install sonic $(DESTDIR)$(PREFIX)/bin
-	install sonic.h $(DESTDIR)$(PREFIX)/include
-	install libsonic.so.$(LIB_TAG) $(DESTDIR)$(PREFIX)/lib
+install: sonic $(LIB_NAME)$(LIB_TAG) sonic.h
+	install -d $(DESTDIR)$(BINDIR) $(DESTDIR)$(INCDIR) $(DESTDIR)$(LIBDIR)
+	install sonic $(DESTDIR)$(BINDIR)
+	install sonic.h $(DESTDIR)$(INCDIR)
 	install libsonic.a $(DESTDIR)$(LIBDIR)
-	ln -sf libsonic.so.$(LIB_TAG) $(DESTDIR)$(PREFIX)/lib/libsonic.so
-	ln -sf libsonic.so.$(LIB_TAG) $(DESTDIR)$(PREFIX)/lib/libsonic.so.0
+	install $(LIB_NAME)$(LIB_TAG) $(DESTDIR)$(LIBDIR)
+ifneq ($(UNAME), Darwin)
+	ln -sf $(LIB_NAME)$(LIB_TAG) $(DESTDIR)$(LIBDIR)/$(LIB_NAME)
+	ln -sf $(LIB_NAME)$(LIB_TAG) $(DESTDIR)$(LIBDIR)/$(LIB_NAME).0
+endif
 
 uninstall: 
-	rm -f $(DESTDIR)$(PREFIX)/bin/sonic 
-	rm -f $(DESTDIR)$(PREFIX)/include/sonic.h
-	rm -f $(DESTDIR)$(PREFIX)/lib/libsonic.so.$(LIB_TAG)
-	rm -f $(DESTDIR)$(PREFIX)/lib/libsonic.so
-	rm -f $(DESTDIR)$(PREFIX)/lib/libsonic.so.0
+	rm -f $(DESTDIR)$(BINDIR)/sonic
+	rm -f $(DESTDIR)$(INCDIR)/sonic.h
 	rm -f $(DESTDIR)$(LIBDIR)/libsonic.a
+	rm -f $(DESTDIR)$(LIBDIR)/$(LIB_NAME)$(LIB_TAG)
+	rm -f $(DESTDIR)$(LIBDIR)/$(LIB_NAME).0
+	rm -f $(DESTDIR)$(LIBDIR)/$(LIB_NAME)
 
 clean:
-	rm -f *.o sonic libsonic.so* libsonic.a
+	rm -f *.o sonic $(LIB_NAME)* libsonic.a test.wav
+
+check:
+	./sonic -s 2.0 ./samples/talking.wav ./test.wav