Patch ncurses-6.1-20191214 breaks cal from util-linux-2.34

[Dr. Werner Fink]

Hi

with latest ncurses-6.1-20191214.patch applied, I see a crash of the
cal(1) utility from package util-linux-2.34.

abuild@noether:~/rpmbuild/BUILD/util-linux-2.34> gdb -q --args ./cal 
Reading symbols from ./cal...
(gdb) run
Starting program: /home/abuild/rpmbuild/BUILD/util-linux-2.34/cal 
warning: Unable to open "/usr/lib64/librpm.so.8" (/usr/lib64/librpm.so.8: 
cannot open shared object file: No such file or directory), missing debuginfos 
notifications will not be displayed
Missing separate debuginfo for /lib64/ld-linux-x86-64.so.2
Try: zypper install -C 
"debuginfo(build-id)=8ffe0e6d1fb02d2198441fd39b5eed1fb6d79848"
Missing separate debuginfo for /lib64/libc.so.6
Try: zypper install -C 
"debuginfo(build-id)=3c0febc7b717f849ba5c790eefab156f43417733"
Missing separate debuginfo for /lib64/libtinfo.so.6
Try: zypper install -C 
"debuginfo(build-id)=f2d889f43d57068062b1dd79ba51fb383d1eb899"
    December 2019   
Su Mo Tu We Th Fr Sa
 1  2  3  4  5  6  7
 8  9 10 11 12 13 14

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7ea06b6 in __strlen_sse2 () from /lib64/libc.so.6
(gdb) bt
#0  0x00007ffff7ea06b6 in __strlen_sse2 () from /lib64/libc.so.6
#1  0x00007ffff7e6e93e in __vfprintf_internal () from /lib64/libc.so.6
#2  0x00007ffff7e80666 in __vsnprintf_internal () from /lib64/libc.so.6
#3  0x00007ffff7f0f6cd in __snprintf_chk () from /lib64/libc.so.6
#4  0x000055555555bdbb in snprintf (__fmt=0x55555555d1ac "%*s%s%*d%s", __n=300, 
__s=<optimized out>) at /usr/include/bits/stdio2.h:67
#5  cal_output_months (ctl=<optimized out>, month=<optimized out>) at 
misc-utils/cal.c:835
#6  monthly (ctl=0x555555561020 <ctl>) at misc-utils/cal.c:903
#7  0x00005555555588f0 in main (argc=<optimized out>, argv=<optimized out>) at 
misc-utils/cal.c:606

this seems to caused by a header file from ncurses as the resulting
binary cal(1) also crashes with an old libtinfo (pre 6.1-20191214).

Werner

-- 
  "Having a smoking section in a restaurant is like having
          a peeing section in a swimming pool." -- Edward Burr

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