[Bug testsuite/24582] New: FAIL: gdb.base/style.exp: set width 30 (with stub-termcap.o)

[vries at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=24582

            Bug ID: 24582
           Summary: FAIL: gdb.base/style.exp: set width 30 (with
                    stub-termcap.o)
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: testsuite
          Assignee: unassigned at sourceware dot org
          Reporter: vries at gcc dot gnu.org
  Target Milestone: ---

The test-case style.exp uses TERM=ansi.

With a gdb build with stub-termcap.o however, that mode is not effective
(because the call to tgetent in _rl_init_terminal_io fails), and _rl_term_up
ends up set to NULL.

So, when displaying "(gdb) set width 30", rl_redisplay goes into
horizontal-scrolling-mode (because _rl_term_up == NULL), causing the gdb_test
mismatch:
...
set width 3^M<et width 30     ^H^H^H^H^H^M
(gdb) FAIL: gdb.base/style.exp: set width 30
...

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