Fix bug in systools:make_tar when path given as just 'ebin'

If a path was given as ONLY 'ebin' and not for example './ebin', then
systools:make_tar would fail with a function_clause exception in
filename:join/1. The bug was in systools_make:appDir/1, which tried to
find the parent directory of the given path. This function now uses
library functions filename:basename and filename:dirname instead of
general list manipulations.

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/sasl/src/release_handler.erl b/lib/sasl/src/release_handler.erl
index 4f01f5f559..bc08f94dff 100644
--- a/lib/sasl/src/release_handler.erl
+++ b/lib/sasl/src/release_handler.erl
@@ -174,7 +174,7 @@ check_install_release(Vsn, Opts) ->
 
 check_check_install_options([purge|Opts], _) ->
     check_check_install_options(Opts, true);
-check_check_install_options([Illegal|_],Purge) ->
+check_check_install_options([Illegal|_],_Purge) ->
     {error,{illegal_option,Illegal}};
 check_check_install_options([],Purge) ->
     {ok,Purge}.
@@ -2001,7 +2001,7 @@ safe_write_file_m(File, Data, Masters) ->
 %% 'update_paths' option to release_handler:install_release/2 if the
 %% code path shall be updated then.
 %% -----------------------------------------------------------------
-get_new_libs([{App,Vsn,LibDir}|CurrentLibs], NewLibs) ->
+get_new_libs([{App,Vsn,_LibDir}|CurrentLibs], NewLibs) ->
     case lists:keyfind(App,1,NewLibs) of
 	{App,NewVsn,_} = LibInfo when NewVsn =/= Vsn ->
 	    [LibInfo | get_new_libs(CurrentLibs,NewLibs)];