For the reference, this bug has been reported originally at https://bugzilla.redhat.com/show_bug.cgi?id=1484290. Thomas said he could not reproduce it, but the crash happens with the current version in unstable.
Here is a backtrace from "infotocap POC12" after rebuilding tic with
-O0, so that the variables are not all optimized out:
,----
| Reading symbols from infotocap...done.
| (gdb) set args POC12
| (gdb) run
| Starting program: /usr/local/src/deb-src/ncurses/ncurses/obj/progs/infotocap
POC12
|
| Program received signal SIGSEGV, Segmentation fault.
| __strcmp_ssse3 () at ../sysdeps/i386/i686/multiarch/strcmp-ssse3.S:241
| 241 ../sysdeps/i386/i686/multiarch/strcmp-ssse3.S: Datei oder Verzeichnis
nicht gefunden.
| (gdb) bt full
| #0 __strcmp_ssse3 () at ../sysdeps/i386/i686/multiarch/strcmp-ssse3.S:241
| No locals.
| #1 0x565602cd in fmt_entry (tterm=0x56577c40, pred=0x5655e9e9
<dump_predicate>, content_only=0, suppress_untranslatable=0, infodump=0,
numbers=0) at ../../progs/dump_entry.c:996
| i = 7
| j = 39
| buffer = '\000' <repeats 4113 times>...
| capability = 0x0
| name = 0xf7fb0627 "ws"
| predval = -1
| len = 14
| num_bools = 0
| num_values = 0
| num_strings = 0
| outcount = false
| #2 0x5656188d in dump_entry (tterm=0x56577c40, suppress_untranslatable=0,
limited=1, numbers=0, pred=0x0) at ../../progs/dump_entry.c:1513
| save_tterm = {term_names = 0x0, str_table = 0x0, Booleans = 0x0,
Numbers = 0x0, Strings = 0x0, ext_str_table = 0x0, ext_Names = 0x0,
num_Booleans = 0, num_Numbers = 0, num_Strings = 0, ext_Booleans = 0,
ext_Numbers = 0, ext_Strings = 0}
| len = 0
| critlen = 1023
| legend = 0x56567862 "older termcap"
| infodump = false
| #3 0x56558ceb in main (argc=2, argv=0xffffd324) at ../../progs/tic.c:1037
| j = -1
| len = 0
| my_tmpname = '\000' <repeats 4095 times>
| my_altfile = '\000' <repeats 1841 times>...
| v_opt = -1
| debug_level = 0
| smart_defaults = 1
| termcap = 0x0
| qp = 0x56577c40
| this_opt = -1
| last_opt = 63
| outform = 2
| sortmode = 4
| width = 60
| height = 65535
| formatted = false
| literal = false
| numbers = 0
| forceresolve = false
| limited = true
| tversion = 0x0
| source_file = 0xffffd509 "POC12"
| outdir = 0x0
| check_only = false
| suppress_untranslatable = false
| quickdump = 0
| quiet = false
| wrap_strings = false
| (gdb)
`----
The POC12 file is attached.
POC12
Description: Binary data
