Makefiles cleanup

Factor-out $CFLAGS and $LDFLAGS to allow distributions to easily override
them. Properly use $LDFLAGS when linking and $CFLAGS when compiling.

--- a/chat/Makefile.linux
+++ b/chat/Makefile.linux
@@ -8,24 +8,23 @@ CDEF1=	-DTERMIOS			# Use the termios str
 CDEF2=	-DSIGTYPE=void			# Standard definition
 CDEF3=	-UNO_SLEEP			# Use the usleep function
 CDEF4=	-DFNDELAY=O_NDELAY		# Old name value
-CDEFS=	$(CDEF1) $(CDEF2) $(CDEF3) $(CDEF4)
+COPTS=	$(CDEF1) $(CDEF2) $(CDEF3) $(CDEF4)
 
-COPTS=	-O2 -g -pipe
-CFLAGS=	$(COPTS) $(CDEFS)
+CFLAGS=	-O2 -g
 
 INSTALL= install
 
 all:	chat
 
 chat:	chat.o
-	$(CC) -o chat chat.o
+	$(CC) $(LDFLAGS) -o chat chat.o
 
 chat.o:	chat.c
-	$(CC) -c $(CFLAGS) -o chat.o chat.c
+	$(CC) -c $(COPTS) $(CFLAGS) -o chat.o chat.c
 
 install: chat
 	mkdir -p $(BINDIR) $(MANDIR)
-	$(INSTALL) -s -c chat $(BINDIR)
+	$(INSTALL) -c chat $(BINDIR)
 	$(INSTALL) -c -m 644 chat.8 $(MANDIR)
 
 clean:
--- a/pppd/plugins/Makefile.linux
+++ b/pppd/plugins/Makefile.linux
@@ -1,7 +1,7 @@
 #CC	= gcc
-COPTS	= -O2 -g
-CFLAGS	= $(COPTS) -I.. -I../../include -fPIC
-LDFLAGS	= -shared
+CFLAGS	= -O2 -g
+COPTS	= -I.. -I../../include -fPIC
+LDFLAGS	= 
 INSTALL	= install
 
 DESTDIR = $(INSTROOT)@DESTDIR@
@@ -22,8 +22,11 @@ endif
 all:	$(PLUGINS)
 	for d in $(SUBDIRS); do $(MAKE) $(MFLAGS) -C $$d all; done
 
+%.o: %.c
+	$(CC) $(COPTS) $(CFLAGS) -c $<
+
 %.so: %.c
-	$(CC) -o $@ $(LDFLAGS) $(CFLAGS) $^
+	$(CC) -o $@ $(LDFLAGS) -shared $(COPTS) $(CFLAGS) $^
 
 VERSION = $(shell awk -F '"' '/VERSION/ { print $$2; }' ../patchlevel.h)
 
--- a/pppd/plugins/pppoatm/Makefile.linux
+++ b/pppd/plugins/pppoatm/Makefile.linux
@@ -1,7 +1,7 @@
 #CC	= gcc
-COPTS	= -O2 -g
-CFLAGS	= $(COPTS) -I../.. -I../../../include -fPIC
-LDFLAGS	= -shared
+CFLAGS	= -O2 -g
+COPTS	= -I../.. -I../../../include -fPIC
+LDFLAGS	= 
 INSTALL	= install
 
 #***********************************************************************
@@ -24,7 +24,7 @@ PLUGIN_OBJS := pppoatm.o
 ifdef HAVE_LIBATM
 LIBS := -latm
 else
-CFLAGS += -I.
+COPTS += -I.
 PLUGIN_OBJS += text2qos.o text2atm.o misc.o ans.o
 LIBS := -lresolv
 endif
@@ -33,7 +33,7 @@ endif
 all: $(PLUGIN)
 
 $(PLUGIN): $(PLUGIN_OBJS)
-	$(CC) $(CFLAGS) -o $@ -shared $^ $(LIBS)
+	$(CC) $(LDFLAGS) -o $@ -shared $^ $(LIBS)
 
 install: all
 	$(INSTALL) -d -m 755 $(LIBDIR)
@@ -43,4 +43,4 @@ clean:
 	rm -f *.o *.so
 
 %.o: %.c
-	$(CC) $(CFLAGS) -c -o $@ $<
+	$(CC) $(COPTS) $(CFLAGS) -c -o $@ $<
--- a/pppd/plugins/pppol2tp/Makefile.linux
+++ b/pppd/plugins/pppol2tp/Makefile.linux
@@ -1,7 +1,7 @@
 #CC	= gcc
-COPTS	= -O2 -g
-CFLAGS	= $(COPTS) -I. -I../.. -I../../../include -fPIC
-LDFLAGS	= -shared
+CFLAGS	= -O2 -g
+COPTS	= -I. -I../.. -I../../../include -fPIC
+LDFLAGS	= 
 INSTALL	= install
 
 #***********************************************************************
@@ -16,7 +16,7 @@ PLUGINS := pppol2tp.so openl2tp.so
 all: $(PLUGINS)
 
 %.so: %.o
-	$(CC) $(CFLAGS) -o $@ -shared $^ $(LIBS)
+	$(CC) $(LDFLAGS) -o $@ -shared $^ $(LIBS)
 
 install: all
 	$(INSTALL) -d -m 755 $(LIBDIR)
@@ -26,4 +26,4 @@ clean:
 	rm -f *.o *.so
 
 %.o: %.c
-	$(CC) $(CFLAGS) -c -o $@ $<
+	$(CC) $(COPTS) $(CFLAGS) -c -o $@ $<
--- a/pppd/plugins/radius/Makefile.linux
+++ b/pppd/plugins/radius/Makefile.linux
@@ -12,7 +12,8 @@ VERSION = $(shell awk -F '"' '/VERSION/
 INSTALL	= install
 
 PLUGIN=radius.so radattr.so radrealms.so
-CFLAGS=-I. -I../.. -I../../../include -O2 -fPIC -DRC_LOG_FACILITY=LOG_DAEMON
+CFLAGS=-g -O2
+COPTS = -I. -I../.. -I../../../include -fPIC -DRC_LOG_FACILITY=LOG_DAEMON
 
 # Uncomment the next line to include support for Microsoft's
 # MS-CHAP authentication protocol.
@@ -23,33 +24,36 @@ MPPE=y
 MAXOCTETS=y
 
 ifdef CHAPMS
-CFLAGS += -DCHAPMS=1
+COPTS += -DCHAPMS=1
 ifdef MPPE
-CFLAGS += -DMPPE=1
+COPTS += -DMPPE=1
 endif
 endif
 ifdef MAXOCTETS
-CFLAGS += -DMAXOCTETS=1
+COPTS += -DMAXOCTETS=1
 endif
 
 all: $(PLUGIN)
 
 install: all
 	$(INSTALL) -d -m 755 $(LIBDIR)
-	$(INSTALL) -s -c -m 755 radius.so $(LIBDIR)
-	$(INSTALL) -s -c -m 755 radattr.so $(LIBDIR)
-	$(INSTALL) -s -c -m 755 radrealms.so $(LIBDIR)
+	$(INSTALL) -c -m 755 radius.so $(LIBDIR)
+	$(INSTALL) -c -m 755 radattr.so $(LIBDIR)
+	$(INSTALL) -c -m 755 radrealms.so $(LIBDIR)
 	$(INSTALL) -c -m 444 pppd-radius.8 $(MANDIR)
 	$(INSTALL) -c -m 444 pppd-radattr.8 $(MANDIR)
 
+%.o: %.c
+	$(CC) $(COPTS) $(CFLAGS) -c $<
+
 radius.so: radius.o libradiusclient.a
-	$(CC) -o radius.so -shared radius.o libradiusclient.a
+	$(CC) $(LDFLAGS) -o radius.so -shared radius.o libradiusclient.a
 
 radattr.so: radattr.o
-	$(CC) -o radattr.so -shared radattr.o
+	$(CC) $(LDFLAGS) -o radattr.so -shared radattr.o
 
 radrealms.so: radrealms.o
-	$(CC) -o radrealms.so -shared radrealms.o
+	$(CC) $(LDFLAGS) -o radrealms.so -shared radrealms.o
 
 CLIENTOBJS = avpair.o buildreq.o config.o dict.o ip_util.o \
 	clientid.o sendserver.o lock.o util.o md5.o
--- a/pppd/plugins/rp-pppoe/Makefile.linux
+++ b/pppd/plugins/rp-pppoe/Makefile.linux
@@ -25,40 +25,40 @@ INSTALL	= install
 # Version is set ONLY IN THE MAKEFILE!  Don't delete this!
 RP_VERSION=3.8p
 
-COPTS=-O2 -g
-CFLAGS=$(COPTS) -I../../../include '-DRP_VERSION="$(RP_VERSION)"'
+CFLAGS=-O2 -g
+COPTS=-I../../../include '-DRP_VERSION="$(RP_VERSION)"'
 all: rp-pppoe.so pppoe-discovery
 
 pppoe-discovery: pppoe-discovery.o debug.o
 	$(CC) -o pppoe-discovery pppoe-discovery.o debug.o
 
 pppoe-discovery.o: pppoe-discovery.c
-	$(CC) $(CFLAGS) -c -o pppoe-discovery.o pppoe-discovery.c
+	$(CC) $(COPTS) $(CFLAGS) -c -o pppoe-discovery.o pppoe-discovery.c
 
 debug.o: debug.c
-	$(CC) $(CFLAGS) -c -o debug.o debug.c
+	$(CC) $(COPTS) $(CFLAGS) -c -o debug.o debug.c
 
 rp-pppoe.so: plugin.o discovery.o if.o common.o
-	$(CC) -o rp-pppoe.so -shared plugin.o discovery.o if.o common.o
+	$(CC) $(LDFLAGS) -o rp-pppoe.so -shared $^
 
 install: all
 	$(INSTALL) -d -m 755 $(LIBDIR)
-	$(INSTALL) -s -c -m 4550 rp-pppoe.so $(LIBDIR)
+	$(INSTALL) -c -m 4550 rp-pppoe.so $(LIBDIR)
 	$(INSTALL) -d -m 755 $(BINDIR)
-	$(INSTALL) -s -c -m 555 pppoe-discovery $(BINDIR)
+	$(INSTALL) -c -m 555 pppoe-discovery $(BINDIR)
 
 clean:
 	rm -f *.o *.so pppoe-discovery
 
 plugin.o: plugin.c
-	$(CC) $(CFLAGS) -I../../.. -c -o plugin.o -fPIC plugin.c
+	$(CC) $(COPTS) $(CFLAGS) -I../../.. -c -o plugin.o -fPIC plugin.c
 
 discovery.o: discovery.c
-	$(CC) $(CFLAGS) -I../../.. -c -o discovery.o -fPIC discovery.c
+	$(CC) $(COPTS) $(CFLAGS) -I../../.. -c -o discovery.o -fPIC discovery.c
 
 if.o: if.c
-	$(CC) $(CFLAGS) -I../../.. -c -o if.o -fPIC if.c
+	$(CC) $(COPTS) $(CFLAGS) -I../../.. -c -o if.o -fPIC if.c
 
 common.o: common.c
-	$(CC) $(CFLAGS) -I../../.. -c -o common.o -fPIC common.c
+	$(CC) $(COPTS) $(CFLAGS) -I../../.. -c -o common.o -fPIC common.c
 
--- a/pppstats/Makefile.linux
+++ b/pppstats/Makefile.linux
@@ -10,27 +10,25 @@ PPPSTATSRCS = pppstats.c
 PPPSTATOBJS = pppstats.o
 
 #CC = gcc
-COPTS = -O
-COMPILE_FLAGS = -I../include
+CFLAGS = -O2 -g
+COPTS = -I../include
 LIBS =
 
 INSTALL= install
 
-CFLAGS = $(COPTS) $(COMPILE_FLAGS)
-
 all: pppstats
 
 install: pppstats
 	-mkdir -p $(MANDIR)
-	$(INSTALL) -s -c pppstats $(BINDIR)
+	$(INSTALL) -c pppstats $(BINDIR)
 	$(INSTALL) -c -m 444 pppstats.8 $(MANDIR)
 
 pppstats: $(PPPSTATSRCS)
-	$(CC) $(CFLAGS) -o pppstats pppstats.c $(LIBS)
+	$(CC) $(LDFLAGS) $(COPTS) $(CFLAGS) -o pppstats pppstats.c $(LIBS)
 
 clean:
 	rm -f pppstats *~ #* core
 
 depend:
-	cpp -M $(CFLAGS) $(PPPSTATSRCS) >.depend
-#	makedepend $(CFLAGS) $(PPPSTATSRCS)
+	cpp -M $(COPTS) $(CFLAGS) $(PPPSTATSRCS) >.depend
+#	makedepend $(COPTS) $(CFLAGS) $(PPPSTATSRCS)
--- a/pppdump/Makefile.linux
+++ b/pppdump/Makefile.linux
@@ -2,20 +2,24 @@ DESTDIR = $(INSTROOT)@DESTDIR@
 BINDIR = $(DESTDIR)/sbin
 MANDIR = $(DESTDIR)/share/man/man8
 
-CFLAGS= -O -I../include/net
+CFLAGS=-O2 -g
+COPTS= -I../include/net
 OBJS = pppdump.o bsd-comp.o deflate.o zlib.o
 
 INSTALL= install
 
 all:	pppdump
 
+%.o: %.c
+	$(CC) $(COPTS) $(CFLAGS) -c $<
+
 pppdump: $(OBJS)
-	$(CC) -o pppdump $(OBJS)
+	$(CC) $(LDFLAGS) -o pppdump $(OBJS)
 
 clean:
 	rm -f pppdump $(OBJS) *~
 
 install:
 	mkdir -p $(BINDIR) $(MANDIR)
-	$(INSTALL) -s -c pppdump $(BINDIR)
+	$(INSTALL) -c pppdump $(BINDIR)
 	$(INSTALL) -c -m 444 pppdump.8 $(MANDIR)
--- a/pppd/Makefile.linux
+++ b/pppd/Makefile.linux
@@ -32,7 +32,7 @@ endif
 
 # CC = gcc
 #
-COPTS = -O2 -pipe -Wall -g
+CFLAGS = -O2 -g
 LIBS =
 
 # Uncomment the next 2 lines to include support for Microsoft's
@@ -79,27 +79,26 @@ INCLUDE_DIRS= -I../include
 
 COMPILE_FLAGS= -DHAVE_PATHS_H -DIPX_CHANGE -DHAVE_MMAP
 
-CFLAGS= $(COPTS) $(COMPILE_FLAGS) $(INCLUDE_DIRS) '-DDESTDIR="@DESTDIR@"'
-
 ifdef CHAPMS
-CFLAGS   += -DCHAPMS=1
+COMPILE_FLAGS += -DCHAPMS=1
 NEEDDES=y
 PPPDOBJS += md4.o chap_ms.o
 HEADERS	+= md4.h chap_ms.h
 ifdef MSLANMAN
-CFLAGS   += -DMSLANMAN=1
+COMPILE_FLAGS += -DMSLANMAN=1
 endif
 ifdef MPPE
-CFLAGS   += -DMPPE=1
+COMPILE_FLAGS += -DMPPE=1
 endif
 endif
 
 # EAP SRP-SHA1
 ifdef USE_SRP
-CFLAGS	+= -DUSE_SRP -DOPENSSL -I/usr/local/ssl/include
+COMPILE_FLAGS += -DUSE_SRP -DOPENSSL
+INCLUDE_DIRS += -I/usr/local/ssl/include
 LIBS	+= -lsrp -L/usr/local/ssl/lib -lcrypto
 TARGETS	+= srp-entry
-EXTRAINSTALL = $(INSTALL) -s -c -m 555 srp-entry $(BINDIR)/srp-entry
+EXTRAINSTALL = $(INSTALL) -c -m 555 srp-entry $(BINDIR)/srp-entry
 MANPAGES += srp-entry.8
 EXTRACLEAN += srp-entry.o
 NEEDDES=y
@@ -113,12 +112,12 @@ PPPDOBJS += sha1.o
 endif
 
 ifdef HAS_SHADOW
-CFLAGS   += -DHAS_SHADOW
+COMPILE_FLAGS += -DHAS_SHADOW
 #LIBS     += -lshadow $(LIBS)
 endif
 
 ifneq ($(wildcard /usr/include/crypt.h),)
-CFLAGS  += -DHAVE_CRYPT_H=1
+COMPILE_FLAGS += -DHAVE_CRYPT_H=1
 LIBS	+= -lcrypt
 endif
 
@@ -126,7 +125,7 @@ ifdef NEEDDES
 ifndef USE_CRYPT
 LIBS     += -ldes $(LIBS)
 else
-CFLAGS   += -DUSE_CRYPT=1
+COMPILE_FLAGS += -DUSE_CRYPT=1
 endif
 PPPDOBJS += pppcrypt.o
 HEADERS += pppcrypt.h
@@ -134,7 +133,7 @@ endif
 
 # For "Pluggable Authentication Modules", see ftp.redhat.com:/pub/pam/.
 ifdef USE_PAM
-CFLAGS   += -DUSE_PAM
+COMPILE_FLAGS += -DUSE_PAM
 LIBS     += -lpam -ldl
 endif
 
@@ -143,14 +142,14 @@ ifdef HAVE_MULTILINK
 	# Multilink implies the use of TDB
 	USE_TDB=y
 
-	CFLAGS += -DHAVE_MULTILINK
+	COMPILE_FLAGS += -DHAVE_MULTILINK
 	PPPDSRCS += multilink.c
 	PPPDOBJS += multilink.o
 endif
 
 # TDB
 ifdef USE_TDB
-	CFLAGS += -DUSE_TDB=1
+	COMPILE_FLAGS += -DUSE_TDB=1
 	PPPDSRCS += tdb.c spinlock.c
 	PPPDOBJS += tdb.o spinlock.o
 	HEADERS += tdb.h spinlock.h
@@ -159,11 +158,11 @@ endif
 # Lock library binary for Linux is included in 'linux' subdirectory.
 ifdef LOCKLIB
 LIBS     += -llock
-CFLAGS   += -DLOCKLIB=1
+COMPILE_FLAGS += -DLOCKLIB=1
 endif
 
 ifdef PLUGIN
-CFLAGS	+= -DPLUGIN
+COMPILE_FLAGS += -DPLUGIN
 LDFLAGS	+= -Wl,-E
 LIBS	+= -ldl
 endif
@@ -171,7 +170,7 @@ endif
 ifdef FILTER
 ifneq ($(wildcard /usr/include/pcap-bpf.h),)
 LIBS    += -lpcap
-CFLAGS  += -DPPP_FILTER
+COMPILE_FLAGS += -DPPP_FILTER
 endif
 endif
 
@@ -179,20 +178,22 @@ ifdef HAVE_INET6
      PPPDSRCS += ipv6cp.c eui64.c
      HEADERS  += ipv6cp.h eui64.h
      PPPDOBJS += ipv6cp.o eui64.o
-     CFLAGS   += -DINET6=1
+     COMPILE_FLAGS += -DINET6=1
 endif
 
 ifdef CBCP
      PPPDSRCS += cbcp.c
      PPPDOBJS += cbcp.o
-     CFLAGS += -DCBCP_SUPPORT
+     COMPILE_FLAGS += -DCBCP_SUPPORT
      HEADERS += cbcp.h
 endif
 
 ifdef MAXOCTETS
-     CFLAGS += -DMAXOCTETS
+     COMPILE_FLAGS += -DMAXOCTETS
 endif
 
+COPTS = $(COMPILE_FLAGS) $(INCLUDE_DIRS) '-DDESTDIR="@DESTDIR@"'
+
 INSTALL= install
 
 all: $(TARGETS)
@@ -200,11 +201,14 @@ all: $(TARGETS)
 install: pppd
 	mkdir -p $(BINDIR) $(MANDIR)
 	$(EXTRAINSTALL)
-	$(INSTALL) -s -c -m 555 pppd $(BINDIR)/pppd
+	$(INSTALL) -c -m 555 pppd $(BINDIR)/pppd
 	if chgrp pppusers $(BINDIR)/pppd 2>/dev/null; then \
 	  chmod o-rx,u+s $(BINDIR)/pppd; fi
 	$(INSTALL) -c -m 444 pppd.8 $(MANDIR)
 
+%.o: %.c
+	$(CC) $(COPTS) $(CFLAGS) -c $<
+
 pppd: $(PPPDOBJS)
 	$(CC) $(CFLAGS) $(LDFLAGS) -o pppd $(PPPDOBJS) $(LIBS)
 
