ncurses-5.9-20110716.patch changes linux term to use SI/SO (use G1 charset)
for selecting alternate character set; however, it kept acsc to use CP437
codes - it had a chance to work on non-unicode terminal only if G1 was mapped
to CP437 map, which is not the default; the default for G1 is VT100 map, which
works with VT100-specific acsc string - and that's what this patch changes.

diff -urNp -x '*.orig' compat-ncurses5-5.9.20150117.org/misc/terminfo.src compat-ncurses5-5.9.20150117/misc/terminfo.src
--- compat-ncurses5-5.9.20150117.org/misc/terminfo.src	2023-07-21 00:00:49.116051986 +0200
+++ compat-ncurses5-5.9.20150117/misc/terminfo.src	2023-07-21 00:00:50.115066314 +0200
@@ -1633,6 +1633,7 @@ linux2.2|linux 2.2.x console,
 # Further, this breaks longstanding workarounds for Linux console's line
 # drawing (see Debian 665959) -TD
 linux2.6|linux 2.6.x console,
+	acsc=++\,\,--..00``aaffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~,
 	rmacs=^O,
 	sgr=\E[0;10%?%p1%t;7%;%?%p2%t;4%;%?%p3%t;7%;%?%p4%t;5%;%?%p5%t;2%;%?%p6%t;1%;m%?%p9%t\016%e\017%;,
 	sgr0=\E[m\017, smacs=^N, use=linux2.2,