Watcom makefiles overhaul.

- make both libcurl and curl makefiles use register calling convention
  (previously libcurl had stack calling convention).
- added include paths to the Watcom headers so its no longer required
  to set the environment vars for this.
- added -wcd=201 to supress compiler warning about unreachable code.
- use macros for all tools, and removed dependency on GNU tools like rm.
- make ipv6 and debug builds controlable via env vars and so make them
  optional instead of default.
- commented WINLDAPAPI and WINBERAPI since they broke with OW 1.8, and
  it seems they're not needed (anymore?).
- added rule for hugehelp.c.cvs so that it will be created when not
  already exist - this is required for building from a release tarball
  since there we have no hugehelp.c.cvs, thus compilation broke.
- removed C_ARG creation from lib/Makefile.Watcom and use CFLAGS
  directly as done too in src/Makefile.Watcom - this has the benefit
  that we will see all active cflags and defines during compile.
- added LINK-ARG to src/Makefile.Watcom in order to better control
  linker input.
- a couple of other minor makefile tweaks here and there ...
- added largefile support for Watcom builds to config-win32.h. Not yet
  tested if it really works, but should since Win32 supports it.
- added loaddll stuff to speed up builds if supported.

src/Makefile.Watcom

@@ -3,22 +3,62 @@
 #  G. Vanem <gvanem@broadpark.no>
 #
 
+!ifndef %watcom
+!error WATCOM environment variable not set!
+!else
+SYS_INCL = -I$(%watcom)\h\nt -I$(%watcom)\h
+SYS_LIBS = $(%watcom)\lib386\nt;$(%watcom)\lib386
+!endif
+
+TARGETS = libcurl_wc.dll libcurl_wc_imp.lib libcurl_wc.lib
+
 CC = wcc386
+LD = wlink
+RC = wrc
+AR = wlib
 
-CFLAGS = -3r -mf -d3 -hc -zff -zgf -zq -zm -s -fr=con -w2 -fpi -oilrtfm &
-         -bt=nt -d+ -dWIN32 -dHAVE_STRTOLL -dDEBUGBUILD -dENABLE_IPV6    &
-         -dHAVE_WINSOCK2_H -I..\include -I..\lib
+!ifdef __LOADDLL__
+!  loaddll wcc386  wccd386
+!  loaddll wpp386  wppd386
+!  loaddll wlink   wlinkd
+!  loaddll wlib    wlibd
+!endif
 
-OBJ_DIR = WC_Win32.obj
+MD = mkdir
+RM = del /q /f >NUL 2>&1
+RD = rmdir /q /s >NUL 2>&1
+CP = copy
+
+CFLAGS = -3r -mf -hc -zff -zgf -zq -zm -s -fr=con -w2 -fpi -oilrtfm &
+         -wcd=201 -bt=nt -d+ -dWIN32 -dHAVE_STRTOLL                 &
+         -I..\include -I..\lib $(SYS_INCL)
+
+!ifdef %debug
+DEBUG  = -dDEBUG=1 -dDEBUGBUILD
+CFLAGS += -d3 $(DEBUG)
+!else
+CFLAGS += -d0
+!endif
+
+!ifdef %use_ipv6
+CFLAGS += -d_WIN32_WINNT=0x0501 -dENABLE_IPV6
+!endif
+
+OBJ_DIR  = WC_Win32.obj
+LINK_ARG = $(OBJ_DIR)\wlink.arg
 
 # 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 &
 	getpass.c homedir.c curlutil.c os-specific.c
 
-CURLX_SOURCES = rawstr.c
+CURLX_SOURCES = rawstr.c nonblock.c
 
-OBJS = $(CURL_SOURCES:.c=.obj) $(CURLX_SOURCES:.c=.obj)
+OBJS = $(CURL_SOURCES:.c=.obj)
+!ifndef %curl_static
+CFLAGS += -DCURL_STATICLIB
+OBJS += $(CURLX_SOURCES:.c=.obj)
+!endif
 OBJS = $OBJ_DIR\$(OBJS: = $OBJ_DIR\)
 
 RESOURCE = $(OBJ_DIR)\curl.res
@@ -27,38 +67,57 @@ all: hugehelp.c $(OBJ_DIR) curl.exe .SYMBOLIC
 	@echo Welcome to cURL
 
 hugehelp.c: hugehelp.c.cvs
-	copy hugehelp.c.cvs hugehelp.c
+	$(CP) $[@ $^@
+
+hugehelp.c.cvs: .EXISTSONLY
+	$(CP) hugehelp.c $^@
 
 $(OBJ_DIR):
-	mkdir $(OBJ_DIR)
+	-$(MD) $^@
 
-curl.exe: $(OBJS) $(RESOURCE)
-	wlink name $@ system nt file { $(OBJS) }                   &
-	  option quiet, map, caseexact, eliminate, res=$(RESOURCE) &
-	  libpath $(%watcom)\lib386;$(%watcom)\lib386\nt           &
-	  library ..\lib\libcurl_wc_imp.lib, clib3r.lib, ws2_32.lib
+curl.exe: $(OBJS) $(RESOURCE) $(LINK_ARG)
+	$(LD) name $^@ @$(LINK_ARG)
+
+$(LINK_ARG): $(__MAKEFILES__)
+	%create $^@
+	@%append $^@ system nt
+	@%append $^@ file { $(OBJS) }
+	@%append $^@ option quiet, map, caseexact, eliminate,
+	@%append $^@ res=$(RESOURCE) libpath $(SYS_LIBS)
+#	@%append $^@ library clib3r.lib
+!ifdef %curl_static
+	@%append $^@ library ..\lib\libcurl_wc.lib
+!else
+	@%append $^@ library ..\lib\libcurl_wc_imp.lib
+!endif
+!ifeq USE_WATT32 1
+	@%append $^@ library $(%watt_root)\lib\wattcpw_imp.lib
+!else
+	@%append $^@ library ws2_32.lib
+!endif
 
 clean: .SYMBOLIC
-	- rm -f $(OBJS) $(RESOURCE)
+	-$(RM) $(OBJS)
+	-$(RM) $(RESOURCE) $(LINK_ARG)
 
 vclean realclean: clean .SYMBOLIC
- 	- rm -f curl.exe curl.map hugehelp.c
-	- rmdir $(OBJ_DIR)
+	-$(RD) $(OBJ_DIR)
+	-$(RM) curl.exe curl.map hugehelp.c
 
 $(RESOURCE): curl.rc
-	wrc -dDEBUGBUILD=1 -q -r -zm -I..\include -fo=$@ curl.rc
+	$(RC) $(DEBUG) -q -r -zm -I..\include $(SYS_INCL) $[@ -fo=$^@
 
 .ERASE
 .c{$(OBJ_DIR)}.obj:
-	$(CC) $[@ $(CFLAGS) -fo=$@
+	$(CC) $(CFLAGS) $[@ -fo=$^@
 
 .ERASE
 $(OBJ_DIR)\rawstr.obj: ..\lib\rawstr.c
-	$(CC) $[@ $(CFLAGS) -fo=$@
+	$(CC) $(CFLAGS) $[@ -fo=$^@
 
 .ERASE
 $(OBJ_DIR)\nonblock.obj: ..\lib\nonblock.c
-	$(CC) $[@ $(CFLAGS) -fo=$@
+	$(CC) $(CFLAGS) $[@ -fo=$^@
 
 #
 # Dependencies based on "gcc -MM .."
@@ -127,3 +186,4 @@ $(OBJ_DIR)\nonblock.obj: ..\lib\nonblock.c ..\lib\setup.h ..\lib\config-win32.h
   ..\lib\strerror.h ..\lib\urldata.h ..\lib\cookie.h ..\lib\formdata.h &
   ..\lib\timeval.h ..\lib\http_chunks.h ..\lib\hostip.h ..\lib\hash.h &
   ..\lib\llist.h ..\lib\splay.h ..\include\curl\mprintf.h ..\lib\nonblock.h
+

src/config-win32.h

@@ -385,6 +385,10 @@
 #  define USE_WIN32_LARGE_FILES
 #endif
 
+#if defined(__WATCOMC__) && !defined(USE_WIN32_LARGE_FILES)
+#  define USE_WIN32_LARGE_FILES
+#endif
+
 #if defined(__POCC__)
 #  undef USE_WIN32_LARGE_FILES
 #endif