re PR libfortran/54572 (Use libbacktrace library)
PR libfortran/54572
* Makefile.def: Make libgfortran depend on libbacktrace.
* Makefile.in: Regenerate.
* config-lang.in: Add libbacktrace to target_libs.
* Makefile.am (libgfortran_la_LDFLAGS): Link in libbacktrace.
(AM_CPPFLAGS): Add libbacktrace directories to include paths.
* Makefile.in: Regenerate.
* aclocal.m4: Regenerate.
* config.h.in: Regenerate.
* configure: Regenerate.
* configure.ac: Remove checks for strtok_r, wait, execve, pipe,
and dup2. Remove call to GCC_CHECK_UNWIND_GETIPINFO.
* libgfortran.h (full_exe_path, find_addr2line, backtrace): Remove
prototypes.
(show_backtrace): Add prototype.
* runtime/backtrace.c: Rework file entirely.
* runtime/compile_options.c (backtrace_handler): Rename backtrace
to show_backtrace.
(maybe_find_addr2line): Remove function.
(set_options): Remove call to maybe_find_addr2line.
* runtime/error.c (sys_abort): Rename backtrace to show_backtrace.
* runtime/main.c (store_exe_path): Empty function body.
(full_exe_path, gfstrtok_r, find_addr2line): Remove functions.
(cleanup): Don't free removed variables.
* runtime/minimal.c (full_exe_path): Remove function.
(set_args): Don't set exe_path.
* gfortran.dg/backtrace_1.f90: New test.
From-SVN: r227106
ad4f95e395