--- a/Makefile	Mon May 13 22:31:24 2024 -0800
+++ b/Makefile	Tue May 14 18:08:35 2024 -0800
@@ -1,6 +1,3 @@
-CC=	gcc
-CFLAGS=	-O2
-
 PROGDIR=test-fsk test-v22 test-voice tone-detect
 LIBDIR=	librtpalloc libsip libutil
 SUBDIR=	${PROGDIR} ${LIBDIR}
@@ -11,14 +8,19 @@
 test-v22:	librtpalloc libsip libutil
 test-voice:	librtpalloc libsip libutil
 
-${SUBDIR}: FRC
-	cd $@; ${MAKE} ${MFLAGS} CC=${CC} CFLAGS="${CFLAGS}"
+${SUBDIR}: FRC config.defs
+	cd $@; ${MAKE} ${MFLAGS}
+
+config.defs:
+	@echo 'You must run ./configure before make'
+	@false
 
 clean: FRC
 	rm -f a.out core errs
 	for i in ${SUBDIR}; do (cd $$i; ${MAKE} ${MFLAGS} clean); done
 
 install: FRC
-	for i in ${PROGDIR}; do (cd $$i; ${MAKE} ${MFLAGS} install); done
+	for i in ${PROGDIR}; do (cd $$i; ${MAKE} ${MFLAGS} \
+		DESTDIR=${DESTDIR} install); done
 
 FRC: