+CFLAGS= $(COPTS) $(COMPILE_FLAGS) $(INCLUDE_DIRS)
+
+ifdef CHAPMS
+CFLAGS += -DCHAPMS=1
+ifndef USE_CRYPT
+LIBS := -ldes $(LIBS)
+else
+CFLAGS += -DUSE_CRYPT=1
+endif
+PPPDOBJS += md4.o chap_ms.o
+ifdef MSLANMAN
+CFLAGS += -DMSLANMAN=1
+endif
+endif
+
+ifdef HAS_SHADOW
+CFLAGS += -DHAS_SHADOW
+#LIBS := -lshadow $(LIBS)
+endif
+
+# For "Pluggable Authentication Modules", see ftp.redhat.com:/pub/pam/.
+ifdef USE_PAM
+CFLAGS += -DUSE_PAM
+LIBS := -lpam -ldl $(LIBS)
+endif
+
+# Lock library binary for Linux is included in 'linux' subdirectory.
+ifdef LOCKLIB
+LIBS := -llock $(LIBS)
+CFLAGS += -DLOCKLIB=1
+endif
+
+install: pppd
+ mkdir -p $(BINDIR) $(MANDIR)
+ install -s -c -m 4555 -o root pppd $(BINDIR)/pppd
+ install -c -m 444 -o root pppd.8 $(MANDIR)/man8
+
+pppd: $(PPPDOBJS)
+ $(CC) $(CFLAGS) -o pppd $(PPPDOBJS) $(LIBS)