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.

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/config-win32.h b/lib/config-win32.h
index 8c6f91a9f..7d0f8c60b 100644
--- a/lib/config-win32.h
+++ b/lib/config-win32.h
@@ -504,6 +504,10 @@
 #  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