New: Line graphics output is broken in GNU Screen
https://bugs.busybox.net/show_bug.cgi?id=5198
Summary: Line graphics output is broken in GNU Screen
Product: buildroot
Version: 2012.02
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P5
Component: Other
AssignedTo: unassigned at buildroot.uclibc.org
ReportedBy: zkdigisec at gmail.com
CC: buildroot at uclibc.org
Estimated Hours: 0.0
Line graphics looks garbled when output over a Screen terminal.
For example:
$ echo -e "Line: \033(0qqqqqqqq\033(B Normal: qqqqqqqq"
Results in output:
Line: qqqqqqqq Normal: qqqqqqqqq
When it should result in a horizontal line after "Line:". (Screen terminal type is "screen" and underlying terminal type can be for example "vt102" or "xterm").
The problem is due to screen being compiled without TERMINFO defined, meaning that it uses termcap control codes, while ncurses is built with terminfo support only (without termcap backwards compatibility support).
The root of the problem is the termcap/terminfo detection at line 666 in configure.in. The detection uses AC_TRY_RUN which always fails when cross-compilation is used, and TERMINFO is therefore never defined.
An easy fix could be to force terminfo support in the Buildroot screen makefile:
screen-fixed.mk 2012-05-07 10:42:50.938185870 +0200 renamed from screen.mk 2012-02-29 23:19:47.000000000 +0100 +1 -1
@@ -10 +10 @@ -SCREEN_CONF_ENV = CFLAGS=-DSYSV=1 +SCREEN_CONF_ENV = CFLAGS="-DSYSV=1 -DTERMINFO"
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[Buildroot] [Bug 5198] Line graphics output is broken in GNU Screen
https://bugs.busybox.net/show_bug.cgi?id=5198
Peter Korsgaard <[email protected]> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED--- Comment #1 from Peter Korsgaard <[email protected]> 2012-05-07 21:21:32 UTC --- Fixed by Gustavoz in git
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