--- dagrab-S0.513/dagrab.c
+++ dagrab-S0.513/dagrab.c
@@ -776,6 +776,7 @@
 		thread_save(NULL);
 #endif
 	      do_not_write_now:
+		;
 	}
 	/****************************************************************
 	 * Close output file 						*
--- dagrab-S0.513/jit_in.c
+++ dagrab-S0.513/jit_in.c
@@ -74,5 +74,6 @@
 			*p = (*(p + SSIZE) + *(p - SSIZE)) / 2;
 			view_status(ID_JITTER, NULL);
 		      is_ok:	/* means continue */
+			;
 		}
 }
--- dagrab-S0.513/Makefile
+++ dagrab-S0.513/Makefile
@@ -3,14 +3,12 @@
 # Note: PTHREAD support is optional, you can comment it out
 ################################################################################
 
-CC=	gcc
-CFLAGS=	-O ${UCD} -W -Wall -DPTHREAD #-g # #-DDEBUG
-LDFLAGS=-O -s -lpthread # -static
 PREFIX=/usr/local
-
-ifneq ($(wildcard /usr/include/linux/ucdrom.h),)
-       CFLAGS +=-DUSE_UCDROM
-endif
+CC ?= gcc
+CFLAGS ?= -O
+CFLAGS += -W -Wall -DPTHREAD
+LDFLAGS ?= -O
+LIBS = -lpthread
 
 all:	dagrab
 
@@ -28,7 +26,7 @@
 err.o:		dagrab.h main.h
 
 dagrab:	$(OBJ) Makefile
-	$(CC) $(LDFLAGS) $(OBJ) $(LIBS) -o dagrab
+	$(CC) $(CFLAGS) $(LDFLAGS) $(OBJ) $(LIBS) -o dagrab
 
 clean:
 	rm -f dagrab *.o *.wav *.mp[23] *.ogg .*swp *~ gmon.out tags