https://bugs.gentoo.org/725228
--- a/Makefile
+++ b/Makefile
@@ -2,12 +2,10 @@
 # Pierre BETOUIN <pierre.betouin@security-labs.org>
 # Modification Ollie Whitehouse <ol at uncon dot org>
 
-CC=gcc
-MAKE=make
-CFLAGS=-Wall
+CFLAGS += -Wall
 
-BINDIR=/usr/local/bin
-ETCDIR=/usr/local/etc
+BINDIR=/usr/bin
+ETCDIR=/usr/etc
 
 BSS_OBJ=bss
 BSS_SRC=bss.c
@@ -22,10 +20,10 @@ BSS_LIBS=-lbluetooth
 all: $(BSS_OBJ)
 
 $(BSS_OBJ): $(BSS_SRC) $(BSS_INC)
-	$(CC) -c $(BSS_SRC) 
-	$(CC) -c $(L2P_SRC)
-	$(CC) -c $(REP_SRC)
-	$(CC) $(BSS_TMP) $(L2P_TMP) $(REP_TMP) -o $(BSS_OBJ) $(CFLAGS) $(BSS_FLAGS) $(BSS_LIBS)
+	$(CC) $(CFLAGS) $(CPPFLAGS) -c $(BSS_SRC) 
+	$(CC) $(CFLAGS) $(CPPFLAGS) -c $(L2P_SRC)
+	$(CC) $(CFLAGS) $(CPPFLAGS) -c $(REP_SRC)
+	$(CC) $(LDFLAGS) $(BSS_TMP) $(L2P_TMP) $(REP_TMP) -o $(BSS_OBJ) $(CFLAGS) $(BSS_LIBS)
 
 install:
 	strip $(BSS_OBJ)