Make Watcom makefiles use Makefile.inc to reduce future maintainance.

lib/Makefile.Watcom works fine already, for src/Makefile.Watcom we
need first to tweak src/Makefile.inc a bit - therefore the handtweaked
list still exists for now.

Makefile.dist

@@ -54,17 +54,23 @@ borland-clean:
 	cd ..\src
 	make -f Makefile.b32 clean
 
-watcom:
+watcom: .SYMBOLIC
 	cd lib
-	wmake -f Makefile.Watcom
+	wmake -u -f Makefile.Watcom
 	cd ..\src
-	wmake -f Makefile.Watcom
+	wmake -u -f Makefile.Watcom
 
-watcom-clean:
+watcom-clean: .SYMBOLIC
 	cd lib
-	wmake -f Makefile.Watcom clean
+	wmake -u -f Makefile.Watcom clean
 	cd ..\src
-	wmake -f Makefile.Watcom clean
+	wmake -u -f Makefile.Watcom clean
+
+watcom-vclean: .SYMBOLIC
+	cd lib
+	wmake -u -f Makefile.Watcom vclean
+	cd ..\src
+	wmake -u -f Makefile.Watcom vclean
 
 mingw32:
 	$(MAKE) -C lib -f Makefile.m32

lib/Makefile.Watcom

@@ -76,22 +76,12 @@ OBJ_BASE = WC_Win32.obj
 LINK_ARG = $(OBJ_BASE)\dyn\wlink.arg
 LIB_ARG  = $(OBJ_BASE)\stat\wlib.arg
 
-# Unfortunately, we can't include Makefile.inc here because wmake doesn't
-# use backslash as the line continuation character by default
-CSOURCES = file.c timeval.c base64.c hostip.c progress.c formdata.c	&
-  cookie.c http.c sendf.c ftp.c url.c dict.c if2ip.c speedcheck.c	&
-  ldap.c ssluse.c version.c getenv.c escape.c mprintf.c telnet.c	&
-  netrc.c getinfo.c transfer.c strequal.c easy.c security.c krb4.c	&
-  curl_fnmatch.c fileinfo.c ftplistparser.c wildcard.c			&
-  krb5.c memdebug.c http_chunks.c strtok.c connect.c llist.c hash.c	&
-  multi.c content_encoding.c share.c http_digest.c md4.c md5.c curl_rand.c	&
-  http_negotiate.c http_ntlm.c inet_pton.c strtoofft.c strerror.c	&
-  hostares.c hostasyn.c hostip4.c hostip6.c hostsyn.c hostthre.c	&
-  inet_ntop.c parsedate.c select.c gtls.c sslgen.c tftp.c splay.c	&
-  strdup.c socks.c ssh.c nss.c qssl.c rawstr.c curl_addrinfo.c		&
-  socks_gssapi.c socks_sspi.c curl_sspi.c slist.c nonblock.c		&
-  curl_memrchr.c imap.c pop3.c smtp.c pingpong.c rtsp.c curl_threads.c	&
-  warnless.c hmac.c polarssl.c curl_rtmp.c openldap.c
+# In order to process Makefile.inc wmake must be called with -u switch!
+!ifneq __MAKEOPTS__ -u
+!error You MUST call wmake with the -u switch!
+!else
+!include Makefile.inc
+!endif
 
 OBJS = $(CSOURCES:.c=.obj)
 OBJS = $OBJ_DIR\$(OBJS: = $OBJ_DIR\)

src/Makefile.Watcom

@@ -47,6 +47,12 @@ CFLAGS += -d_WIN32_WINNT=0x0501 -dENABLE_IPV6
 OBJ_DIR  = WC_Win32.obj
 LINK_ARG = $(OBJ_DIR)\wlink.arg
 
+# In order to process Makefile.inc wmake must be called with -u switch!
+!ifneq __MAKEOPTS__ -u
+!error You MUST call wmake with the -u switch!
+!else
+!include Makefile.inc
+!endif
 # Unfortunately, we can't include Makefile.inc here because wmake doesn't
 # use backslash as the line continuation character by default
 CURL_SOURCES = main.c hugehelp.c urlglob.c writeout.c writeenv.c &