Misc. Makefile cleanup and fix the VERSION definition.

Signed-off-by: Samuel Martin <s.martin49@gmail.com>

---
diff -purN vpnc-0.5.3.orig/Makefile vpnc-0.5.3/Makefile
--- vpnc-0.5.3.orig/Makefile	2012-08-06 00:03:22.677914146 +0200
+++ vpnc-0.5.3/Makefile	2012-08-06 00:06:58.506744901 +0200
@@ -19,21 +19,19 @@
 #
 # $Id: Makefile 312 2008-06-15 18:09:42Z Joerg Mayer $
 
-DESTDIR=
-PREFIX=/usr/local
-ETCDIR=/etc/vpnc
-BINDIR=$(PREFIX)/bin
-SBINDIR=$(PREFIX)/sbin
-MANDIR=$(PREFIX)/share/man
-DOCDIR=$(PREFIX)/share/doc/vpnc
-
-SRCS = sysdep.c vpnc-debug.c isakmp-pkt.c tunip.c config.c dh.c math_group.c supp.c decrypt-utils.c
-BINS = vpnc cisco-decrypt
-OBJS = $(addsuffix .o,$(basename $(SRCS)))
+DESTDIR =
+PREFIX ?= /usr/local
+ETCDIR  = /etc/vpnc
+BINDIR  = $(PREFIX)/bin
+SBINDIR = $(PREFIX)/sbin
+MANDIR  = $(PREFIX)/share/man
+DOCDIR  = $(PREFIX)/share/doc/vpnc
+
+SRCS    = sysdep.c vpnc-debug.c isakmp-pkt.c tunip.c config.c dh.c math_group.c supp.c decrypt-utils.c
+BINS    = vpnc cisco-decrypt
+OBJS    = $(addsuffix .o,$(basename $(SRCS)))
 BINOBJS = $(addsuffix .o,$(BINS))
 BINSRCS = $(addsuffix .c,$(BINS))
-VERSION := $(shell sh mk-version)
-RELEASE_VERSION := $(shell cat VERSION)
 
 # The license of vpnc (Gpl >= 2) is quite likely incompatible with the
 # openssl license. Openssl is currently used to provide certificate
@@ -50,13 +48,13 @@ RELEASE_VERSION := $(shell cat VERSION)
 #OPENSSL_GPL_VIOLATION = -DOPENSSL_GPL_VIOLATION
 #OPENSSLLIBS = -lcrypto
 
-CC=gcc
-CFLAGS ?= -O3 -g
-CFLAGS += -W -Wall -Wmissing-declarations -Wwrite-strings
-CFLAGS +=  $(shell libgcrypt-config --cflags)
-CPPFLAGS += -DVERSION=\"$(VERSION)\" $(OPENSSL_GPL_VIOLATION)
-LDFLAGS ?= -g
-LDFLAGS += $(shell libgcrypt-config --libs) $(OPENSSLLIBS)
+CC       ?= gcc
+CFLAGS   ?= -O3 -g
+CFLAGS   += -W -Wall -Wmissing-declarations -Wwrite-strings
+CFLAGS   += $(shell libgcrypt-config --cflags)
+CPPFLAGS += $(OPENSSL_GPL_VIOLATION)
+LDFLAGS  ?= -g
+LDFLAGS  += $(shell libgcrypt-config --libs) $(OPENSSLLIBS)
 
 ifeq ($(shell uname -s), SunOS)
 LDFLAGS += -lnsl -lresolv -lsocket
@@ -84,7 +82,7 @@ cisco-decrypt : cisco-decrypt.o decrypt-
 	$(CC) -o $@ $^ $(LDFLAGS)
 
 .depend: $(SRCS) $(BINSRCS)
-	$(CC) -MM $(SRCS) $(BINSRCS) $(CFLAGS) $(CPPFLAGS) > $@
+	$(CC) -MM $(SRCS) $(BINSRCS) $(CPPFLAGS) $(CFLAGS) > $@
 
 vpnc-debug.c vpnc-debug.h : isakmp.h enum2debug.pl
 	LC_ALL=C perl -w ./enum2debug.pl isakmp.h >vpnc-debug.c 2>vpnc-debug.h