PR other/55087
* posix.c (backtrace_open): Add does_not_exist parameter.
* elf.c (phdr_callback): Do not warn if shared library could not
be opened.
* fileline.c (fileline_initialize): Update calls to
backtrace_open.
* internal.h (backtrace_open): Update declaration.
From-SVN: r192861
* posix.c (O_BINARY): Define if not defined.
(backtrace_open): Pass O_BINARY to open. Only call fcntl if
HAVE_FCNTL is defined.
* configure.ac: Test for the fcntl function.
* configure, config.h.in: Rebuild.
From-SVN: r191443
