[bug #61073] [groff]: SEGV with a single option as input

[Bjarni Ingi Gislason]

Follow-up Comment #4, bug #61073 (project groff):

  The difference lies in the use of different software (gnulib).

  Check what "-fanalyze" does with youn own flags.

  I get seven warnings about 

 dereference of NULL '<unknown>' [CWE-690] [-Wanalyzer-null-dereference]

and one about

 warning: leak of FILE 'fp' [CWE-775] [-Wanalyzer-file-leak]

and a compiler error


during IPA pass: analyzer
../src/utils/addftinfo/addftinfo.cpp: In function 'int main(int, char**)':
../src/utils/addftinfo/addftinfo.cpp:121:5: internal compiler error: in
get_or_create_mem_ref, at analyzer/region-model.cc:6938
  121 |     if (sscanf(argv[i+1], "%d", &(param.*(param_table[j].par))) != 1)
      |     ^~
0x7f16283b5d09 __libc_start_main
        ../csu/libc-start.c:308
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <file:///usr/share/doc/gcc-10/README.Bugs> for instructions.



  I am waiting for an updated version of the compiler (from 10.2.1-6 Debian).

(And an update of libc6 (glibc) from 2.31-13)


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