[Buildroot] [PATCH v5 2/5] package/petitboot: prefer UTF-8 support

[Reza Arbab <arbab@linux.ibm.com>]

The petitboot UI looks much nicer in a Unicode locale:

* Items in the language selection submenu use multibyte Unicode
  characters. In other locales, they say "Unable to display text in this
  locale".

* The combination of TERM=linux with a UTF-8 locale is required to
  trigger a special-case workaround in ncurses code[1]. Without
  this, line-drawing characters in the menu look like q's.

Turn on wchar support in ncurses, and add a reminder that a UTF-8 locale
should be generated for things to look right.

[1] https://invisible-island.net/ncurses/ncurses.faq.html#no_line_drawing

Signed-off-by: Reza Arbab <arbab@linux.ibm.com>
---
 package/petitboot/Config.in | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/package/petitboot/Config.in b/package/petitboot/Config.in
index 6a3d476b11b3..4f3b1c1ea4d1 100644
--- a/package/petitboot/Config.in
+++ b/package/petitboot/Config.in
@@ -10,6 +10,7 @@ config BR2_PACKAGE_PETITBOOT
 	select BR2_PACKAGE_ELFUTILS
 	select BR2_PACKAGE_LVM2 # devmapper
 	select BR2_PACKAGE_NCURSES
+	select BR2_PACKAGE_NCURSES_WCHAR
 	# run-time dependencies
 	select BR2_PACKAGE_KEXEC if !BR2_PACKAGE_KEXEC_LITE_ARCH_SUPPORTS
 	select BR2_PACKAGE_KEXEC_LITE if BR2_PACKAGE_KEXEC_LITE_ARCH_SUPPORTS && !BR2_PACKAGE_KEXEC
@@ -18,6 +19,8 @@ config BR2_PACKAGE_PETITBOOT
 	help
 	  Petitboot is a small kexec-based bootloader
 
+	  NOTE: petitboot looks best in a UTF-8 locale (BR2_GENERATE_LOCALE)
+
 	  http://www.kernel.org/pub/linux/kernel/people/geoff/petitboot/petitboot.html
 
 if BR2_PACKAGE_PETITBOOT
-- 
2.39.3

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