PATCH: fix log/watch on FreeBSD

[Oliver Kiddle <opk@xxxxxxx>]

It appears that on FreeBSD, the utmpx log file for current logins is
/var/run/utx.active but our configure script looks for a file names
utmpx. Creating a symlink before compiling appeared to work.

I don't claim to be an autoconf expert but the following patch does at
least allow configure to find it.

Oliver

diff --git a/aczsh.m4 b/aczsh.m4
index c04bf9190..1209ac614 100644
--- a/aczsh.m4
+++ b/aczsh.m4
@@ -544,9 +544,9 @@ dnl
 AC_DEFUN(zsh_PATH_UTMP,
 [AC_CACHE_CHECK([for $1 file], [zsh_cv_path_$1],
 [for dir in /etc /usr/etc /var/adm /usr/adm /var/run /var/log ./conftest; do
-  zsh_cv_path_$1=${dir}/$1
+  m4_foreach([file],[$@],[zsh_cv_path_$1=${dir}/file
   test -f $zsh_cv_path_$1 && break
-  zsh_cv_path_$1=no
+  ])zsh_cv_path_$1=no
 done
 ])
 AH_TEMPLATE([PATH_]translit($1, [a-z], [A-Z])[_FILE],
diff --git a/configure.ac b/configure.ac
index dd0d3ffac..297a7482f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2108,7 +2108,7 @@ dnl CHECK FOR LOCATION OF {U,W}TMP{,X} FILES
 dnl ----------------------------------------
 zsh_PATH_UTMP(utmp)
 zsh_PATH_UTMP(wtmp)
-zsh_PATH_UTMP(utmpx)
+zsh_PATH_UTMP(utmpx,utx.active)
 zsh_PATH_UTMP(wtmpx)
 
 dnl -------------------