* lib/utils.exp (unsetenv): Remove proc.

* doc/dejagnu.texi: Update documentation.
	* NEWS: Update.

ChangeLog

@@ -1,3 +1,9 @@
+2016-04-24  Ben Elliston  <bje@gnu.org>
+
+	* lib/utils.exp (unsetenv): Remove proc.
+	* doc/dejagnu.texi: Update documentation.
+	* NEWS: Update.
+
 2016-04-19  Nick Clifton  <nickc@redhat.com>
 
 	* baseboards/msp430-sim.exp: New file.

NEWS

@@ -2,6 +2,9 @@
 
 Changes since 1.6:
 
+1. The user-visible utility procedure `unsetenv' has been removed.  If
+   a testsuite uses any of these procedures, a copy of the procedure
+   should be made and placed in the lib directory of the testsuite.
 
 Changes since 1.5.3:
 

doc/dejagnu.texi

@@ -4560,7 +4560,6 @@ tool, and its version number.
 * runtest_file_p Procedure: runtest_file_p procedure
 * diff Procedure: diff procedure
 * setenv Procedure: setenv procedure
-* unsetenv Procedure: unsetenv procedure
 * getenv Procedure: getenv procedure
 * prune_system_crud Procedure: prune_system_crud procedure
 @end menu
@@ -4726,7 +4725,7 @@ The first file to compare.
 The second file to compare.
 @end table
 
-@node setenv procedure, unsetenv procedure, diff procedure, Utility Procedures
+@node setenv procedure, getenv procedure, diff procedure, Utility Procedures
 @subsubsection setenv Procedure
 
 Sets the environment variable @emph{var} to the value @emph{val}.
@@ -4745,23 +4744,7 @@ The environment variable to set.
 The value to set the variable to.
 @end table
 
-@node unsetenv procedure, getenv procedure, setenv procedure, Utility Procedures
-@subsubsection unsetenv Procedure
-
-Unsets the environment variable
-@emph{var}.
-
-@quotation
-@t{@b{unsetenv}@{@i{var}@}}
-@end quotation
-
-@table @asis
-
-@item @code{var}
-The environment variable to unset.
-@end table
-
-@node getenv procedure, prune_system_crud procedure, unsetenv procedure, Utility Procedures
+@node getenv procedure, prune_system_crud procedure, setenv procedure, Utility Procedures
 @subsubsection getenv Procedure
 
 Returns the value of @emph{var} in the

lib/utils.exp

@@ -340,14 +340,6 @@ proc setenv { var val } {
     set env($var) $val
 }
 
-# Unset an environment variable
-#
-proc unsetenv { var } {
-    global env
-    unset env($var)
-}
-
-
 # Get a value from an environment variable
 #
 proc getenv { var } {