--- a/convert/Makefile
+++ b/convert/Makefile
@@ -24,7 +24,7 @@
 #CC = cc
 
 # compiler flags
-CFLAGS = -O -g -Wall -W -Wreturn-type -Wunused -Wmissing-prototypes $(PROFLAG)
+CFLAGS += -Wall -W -Wreturn-type -Wunused -Wmissing-prototypes $(PROFLAG)
 
 # if you have an ANSI C Compiler, use the following line, otherwise
 # uncomment the longer .c.o rule, also
@@ -52,15 +52,6 @@
 
 all: $(TARGETS)
 
-ppmtoeyuv: ppmtoeyuv.c
-	$(CC) -o ppmtoeyuv ppmtoeyuv.c
-
-jmovie2jpeg: jmovie2jpeg.c
-	$(CC) -o jmovie2jpeg jmovie2jpeg.c
-
-mpeg_demux: mpeg_demux.c
-	$(CC) -O -o mpeg_demux mpeg_demux.c
-	
 vidtoppm: vidtoppm.c
 	$(CC) -lXvid -lX11 $(INCLUDE) -o vidtoppm vidtoppm.c 
 
--- a/convert/mtv/Makefile
+++ b/convert/mtv/Makefile
@@ -4,7 +4,7 @@
 
 PURIFY        = $(PURIFYHOME)/purify
 
-CFLAGS= -g  -I.
+CFLAGS+=  -I.
 
 #CFLAGS= -O -DLITTLE_ENDIEN
 LFLAGS=
@@ -15,7 +15,7 @@
 default: movieToVid
 
 movieToVid: movieToVid.o
-	cc ${CFLAGS} -o movieToVid movieToVid.o
+	$(CC) $(CFLAGS) -o movieToVid movieToVid.o
 
 clean:
 	rm -f core lintout makeout tags Makefile.bak *.o \
--- a/mpeg_encode/Makefile
+++ b/mpeg_encode/Makefile
@@ -97,5 +97,5 @@
 
 #	gcc
-CFLAGS	      =  $(INCLUDEDIR) $(DEBUGFLAG) -Wall -Wmissing-prototypes $(PROFLAG) $(PROTOFLAG)
+CFLAGS	      +=  $(INCLUDEDIR) -Wall -Wmissing-prototypes $(PROFLAG) $(PROTOFLAG)
 
 #	gcc-strict