pactree: autodetect and use unicode line drawing characters

Add a compile time check for langinfo.h so that we can possibly use
unicode line drawing characters if the current locale is supportive of
them. This can be explicitly disabled at runtime with the use of a new
switch: -a, --ascii.

Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/doc/pactree.8.txt b/doc/pactree.8.txt
index 669a14bb..6ecaf23e 100644
--- a/doc/pactree.8.txt
+++ b/doc/pactree.8.txt
@@ -22,6 +22,10 @@ description is generated.
 
 Options
 -------
+*-a, \--ascii*::
+	Use ascii characters for tree formatting. By default, pactree will use unicode
+	line drawing characters if it is able to detect that the locale supports them.
+
 *-b, \--dbpath*::
 	Specify an alternative database location.