[patch] fix default build when getpass() is unavailable

[Mike Frysinger]

if the system doesn't support getpass, we still default on the options
that require it which causes a build failure.  instead, only default
enable these when getpass is available.
-mike

cli-auth.o:cli-auth.c:function getpass_or_cancel: error: undefined reference to 'getpass'
collect2: error: ld returned 1 exit status

--- a/configure.ac	Tue Sep 29 22:19:11 2015 +0800
+++ b/configure.ac	Fri Oct 09 19:28:56 2015 -0400
@@ -632,7 +632,7 @@ fi
 AC_PROG_GCC_TRADITIONAL
 AC_FUNC_MEMCMP
 AC_FUNC_SELECT_ARGTYPES
-AC_CHECK_FUNCS([dup2 getspnam getusershell memset putenv select socket strdup clearenv strlcpy strlcat daemon basename _getpty getaddrinfo freeaddrinfo getnameinfo fork writev])
+AC_CHECK_FUNCS([dup2 getpass getspnam getusershell memset putenv select socket strdup clearenv strlcpy strlcat daemon basename _getpty getaddrinfo freeaddrinfo getnameinfo fork writev])
 
 AC_SEARCH_LIBS(basename, gen, AC_DEFINE(HAVE_BASENAME))
 
--- a/options.h	Tue Sep 29 22:19:11 2015 +0800
+++ b/options.h	Fri Oct 09 19:28:56 2015 -0400
@@ -217,9 +220,12 @@ If you test it please contact the Dropbe
 #define ENABLE_SVR_PUBKEY_OPTIONS
 #endif
 
+/* This requires getpass. */
+#ifdef HAVE_FUNC_GETPASS
 #define ENABLE_CLI_PASSWORD_AUTH
+#define ENABLE_CLI_INTERACT_AUTH
+#endif
 #define ENABLE_CLI_PUBKEY_AUTH
-#define ENABLE_CLI_INTERACT_AUTH
 
 /* A default argument for dbclient -i <privatekey>. 
 Homedir is prepended unless path begins with / */
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 819 bytes
Desc: Digital signature
Url : http://lists.ucc.gu.uwa.edu.au/pipermail/dropbear/attachments/20151009/3967be5d/attachment.sig