program test_gfortran8_2_write_format_error
  implicit none
  
  real(8) :: real_dummy
  
  real_dummy = 42.0_8
  
  write(*,*) real_dummy
  write(*,'("This is the answer to all questions:",f4.0)') real_dummy  ! this line causes runtime error
  
  !Program received signal SIGSEGV: Segmentation fault - invalid memory reference.
  !
  !Backtrace for this error:
  !#0  0x7f93e1d7ddff in ???
  !#1  0x7f93e2717ee0 in format_hash
  !	at ../../../gcc-8-20171217/libgfortran/io/format.c:128
  !#2  0x7f93e2717ee0 in find_parsed_format
  !	at ../../../gcc-8-20171217/libgfortran/io/format.c:163
  !#3  0x7f93e27274c7 in data_transfer_init
  !	at ../../../gcc-8-20171217/libgfortran/io/transfer.c:2791
  !#4  0x55d357a7826e in ???
  !#5  0x55d357a782e8 in ???
  !#6  0x7f93e1d6a222 in ???
  !#7  0x55d357a780bd in ???
  !#8  0xffffffffffffffff in ???
  !Segmentation fault (core dumped)

  
  !  pacman -Si gcc
  !Repository      : core
  !Name            : gcc
  !Version         : 8.2.1+20180831-1
  !Description     : The GNU Compiler Collection - C and C++ frontends
  !Architecture    : x86_64
  !URL             : http://gcc.gnu.org
  !Licenses        : GPL  LGPL  FDL  custom
  !Groups          : base-devel
  !Provides        : gcc-multilib
  !Depends On      : gcc-libs=8.2.1+20180831-1  binutils>=2.28  libmpc
  !Optional Deps   : lib32-gcc-libs: for generating code for 32-bit ABI
  !Conflicts With  : None
  !Replaces        : gcc-multilib
  !Download Size   : 32,89 MiB
  !Installed Size  : 132,45 MiB
  !Packager        : Evangelos Foutras <evangelos@foutrelis.com>
  !Build Date      : Fr 31 Aug 2018 14:44:58 CEST
  !Validated By    : MD5 Sum  SHA-256 Sum  Signature

end program test_gfortran8_2_write_format_error