From: Nadav Har'El <n...@scylladb.com>
Committer: Nadav Har'El <n...@scylladb.com>
Branch: master
ncurses: fix terminfo
We already know that QEMU has a bug which wrongly translates a bare linefeed
sent by the guest (intentionally!) to \n\r - this bug is known for 11 years
now, see
https://bugs.launchpad.net/qemu/+bug/1407813
https://bugs.launchpad.net/qemu/+bug/1715296
So if we take the host's terminfo files and want to use it in the guest, we
need to avoid using \n for moving the cursor directly down - because in qemu
it doesn't (the extra \r causes the cursor to move to the *beginning* of
that
line).
We had a sed script to use something else instead of \n, but it assumed
the file has the text "^J" and doesn't work if the file had "\n" - as it
now does in Fedora 27 for example. So update the sed script to allow both.
Signed-off-by: Nadav Har'El <n...@scylladb.com>
---
diff --git a/modules/ncurses/Makefile b/modules/ncurses/Makefile
--- a/modules/ncurses/Makefile
+++ b/modules/ncurses/Makefile
@@ -39,7 +39,7 @@ $(NCURSES_ARCHIVE): | $(DOWNLOAD)
$(TI_VT100): $(MAIN)
@mkdir -p $(OUT)/terminfo
- infocmp vt100 | sed 's/cud1=^J,/cud1=\\E[B,/; s/ind=^J,/ind=\\E[S,/;
s/vt100/vt100-qemu/' \
+ infocmp vt100 | sed 's/cud1=\(^J\|\\n\),/cud1=\\E[B,/; s/ind=\(^J\|
\\n\),/ind=\\E[S,/; s/vt100/vt100-qemu/' \
> $(OUT)/terminfo.tmp
tic -o $(OUT)/terminfo $(OUT)/terminfo.tmp
rm -f $(OUT)/terminfo.tmp
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