Allow disabling of NTLM

This patch allows the user to completely disable the NTLM
authorization code.  (Some people use this to reduce the code size;
Wget has traditionally supported disabling the Digest and Opie code,
so there is no reason for NTLM to be any different.)

More importantly, it allows us to disable NTLM with a single stroke
should it prove unsuitable for the 1.10 release.

2005-04-06  Hrvoje Niksic  <[email protected]>

	* configure.in: Allow the user to disable NTLM authorization.
	Make sure NTLM is disabled if OpenSSL is unavailable.  If NTLM is
	*explicitly* requested and OpenSSL is unavailable, abort.

	* configure.in: Renamed USE_* to ENABLE_*.

Index: configure.in
===================================================================
RCS file: /pack/anoncvs/wget/configure.in,v
retrieving revision 1.75
diff -u -r1.75 configure.in
--- configure.in	2005/03/04 19:20:59	1.75
+++ configure.in	2005/04/06 17:53:32
@@ -58,16 +58,20 @@
 
 AC_ARG_ENABLE(opie,
 [  --disable-opie          disable support for opie or s/key FTP login],
-USE_OPIE=$enableval, USE_OPIE=yes)
-test x"${USE_OPIE}" = xyes && AC_DEFINE([USE_OPIE], 1,
+ENABLE_OPIE=$enableval, ENABLE_OPIE=yes)
+test x"${ENABLE_OPIE}" = xyes && AC_DEFINE([ENABLE_OPIE], 1,
    [Define if you want the Opie support for FTP compiled in.])
 
 AC_ARG_ENABLE(digest,
 [  --disable-digest        disable support for HTTP digest authorization],
-USE_DIGEST=$enableval, USE_DIGEST=yes)
-test x"${USE_DIGEST}" = xyes && AC_DEFINE([USE_DIGEST], 1,
+ENABLE_DIGEST=$enableval, ENABLE_DIGEST=yes)
+test x"${ENABLE_DIGEST}" = xyes && AC_DEFINE([ENABLE_DIGEST], 1,
    [Define if you want the HTTP Digest Authorization compiled in.])
 
+AC_ARG_ENABLE(ntlm,
+[  --disable-ntlm          disable support for NTLM authorization],
+[ENABLE_NTLM=$enableval], [ENABLE_NTLM=auto])
+
 AC_ARG_ENABLE(debug,
 [  --disable-debug         disable support for debugging output],
 ENABLE_DEBUG=$enableval, ENABLE_DEBUG=yes)
@@ -76,11 +80,11 @@
 
 wget_need_md5=no
 
-case "${USE_OPIE}${USE_DIGEST}" in
+case "${ENABLE_OPIE}${ENABLE_DIGEST}" in
 *yes*)
 	wget_need_md5=yes
 esac
-if test x"$USE_OPIE" = xyes; then
+if test x"$ENABLE_OPIE" = xyes; then
   OPIE_OBJ='ftp-opie$o'
 fi
 AC_SUBST(OPIE_OBJ)
@@ -412,6 +416,26 @@
   dnl @SSL_INCLUDES@.
   CPPFLAGS=$wget_save_CPPFLAGS
 fi
+
+dnl Enable NTLM if requested and if SSL is available.
+NTLM_OBJ=''
+if test x"$ssl_success" = xyes
+then
+  if test x"$ENABLE_NTLM" != xno
+  then
+    AC_DEFINE([ENABLE_NTLM], 1,
+     [Define if you want the NTLM authorization support compiled in.])
+    NTLM_OBJ='http-ntlm$o'
+  fi
+else
+  dnl If SSL is unavailable and the user explicitly requested NTLM,
+  dnl abort.
+  if test x"$ENABLE_NTLM" = xyes
+  then
+    AC_MSG_ERROR([NTLM authorization requested and OpenSSL not found; aborting])
+  fi
+fi
+AC_SUBST(NTLM_OBJ)
 
 dnl
 dnl Find an md5 implementation.