-# SECURE_FLAGS = -DREQ_SYSOPTIONS=1
-DEBUG_FLAGS = -DDEBUGALL
-COMPILE_FLAGS = -I.. -D_linux_=1 -DGIDSET_TYPE=gid_t
-COPTS = -g # -O2
-LOCKPREFIX = \"/usr/spool/uucp/LCK..\"
-VER = 0.2.8
-
-CFLAGS = $(COPTS) $(DEBUG_FLAGS) $(COMPILE_FLAGS) $(SECURE_FLAGS)
-SOURCE= RELNOTES Makefile.linux $(PPPDSRCS) $(HEADERS) $(MANPAGES)
-
-install:
- install -c -m 4555 -o root pppd $(BINDIR)/pppd
+#
+COPTS = -O2 # -g
+VER = 2.3.0
+LIBS = -lcrypt -lbsd
+
+# The INCLUDE_DIRS must include the standard headers before the local
+# ones. If you just had -I.. then the order would be reversed. So, use
+# the default location for include files first before the .. location.
+#INCLUDE_DIRS= -I/usr/include -I..
+INCLUDE_DIRS=
+
+COMPILE_FLAGS= -D_linux_=1 -DHAVE_PATHS_H -DIPX_CHANGE
+
+CFLAGS= $(COPTS) $(COMPILE_FLAGS) $(INCLUDE_DIRS)
+
+ifdef CHAPMS
+CFLAGS += -DCHAPMS=1
+LIBS := -ldes $(LIBS)
+PPPDOBJS += md4.o chap_ms.o
+endif
+
+ifdef HAS_SHADOW
+CFLAGS += -DHAS_SHADOW
+LIBS := -lshadow -lcrypt $(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