... instead of requiring progname to be used (or program_name to be
provided).
* lib/argmatch.c: Do not include progname.h.
[TEST] (program_name): Do not define.
[TEST] (main): Call getprogname instead of using program_name.
* lib/c-stack.c: Do not include progname.h.
(program_name): Do not define.
(die): Call getprogname instead of using program_name.
* lib/chdir-long.c: Do not include progname.h.
[TEST_CHDIR] (main): Do not set program_name.
* lib/error.c [!_LIBC]: Include progname.h.
[!_LIBC] (program_name): Define using getprogname.
* lib/euidaccess.c: Do not include progname.h.
[TEST] (main): Do not set program_name.
* lib/git-merge-changelog.c: Include getprogname.h instead of
progname.h.
(usage): Call getprogname instead of using program_name.
(main): Likewise. Stop calling set_program_name.
* lib/group-member.c: Do not include progname.h.
[TEST] (main): Do not set program_name.
* modules/argmatch (Depends-on): Add getprogname.
* modules/c-stack (Depends-on): Likewise.
* modules/error (Depends-on): Likewise.
* modules/git-merge-changelog (Depends-on): Likewise.
Also remove progname.
* modules/c-stack (Depends-on): Add libsigsegv.
* modules/c-stack-tests (Makefile.am): Link with libsigsegv, if
needed.
* lib/c-stack.c (SIGSTKSZ): Define fallback.
(segv_handler, overflow_handler, c_stack_action)
[HAVE_LIBSIGSEGV && !HAVE_XSI_STACK_OVERFLOW_HEURISTIC]: Add new
implementation when libsigsegv is available, but only when using
the library is necessary.
* m4/c-stack.m4 (AC_SYS_XSI_STACK_OVERFLOW_HEURISTIC): Add
comment, explaining why XSI check fails on Linux.
(gl_PREREQ_C_STACK): Supply LIBCSTACK, LTLIBCSTACK.
* tests/test-c-stack2.sh: Tweak skip message.
* NEWS: Document new link-time requirements.
Signed-off-by: Eric Blake <ebb9@byu.net>
