[SCM] GNU M4 source repository branch, stackovf, created. v1.5.89a-28-g15ddfa0

[Eric Blake]

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http://git.sv.gnu.org/gitweb/?p=m4.git;a=commitdiff;h=15ddfa0680afac65c54f5fe87fa01b7b7b0f85b3

The branch, stackovf has been created
        at  15ddfa0680afac65c54f5fe87fa01b7b7b0f85b3 (commit)

- Log -----------------------------------------------------------------
commit 15ddfa0680afac65c54f5fe87fa01b7b7b0f85b3
Author: Eric Blake <address@hidden>
Date:   Thu Jun 5 07:08:58 2008 -0600

    Replace stackovf with gnulib c-stack.
    
    * m4/gnulib.cache.m4: Import c-stack module.
    * configure.ac (AC_CHECK_HEADERS_ONCE): Remove check for
    siginfo.h, sys/wait.h.
    (AC_CHECK_TYPES): Likewise for siginfo_t.
    (AC_CHECK_MEMBERS): Likewise for sa_sigaction, ss_sp.
    (AC_CHECK_FUNCS_ONCE): Likewise for sigaction, sigaltstack,
    sigstack, sigvec, strerror.
    (M4_cv_use_stackovf): Likewise for stack overflow detection.
    * src/Makefile.am (m4_SOURCES): Don't build stackovf.c.
    * src/stackovf.c: Delete.
    * src/m4.h (setup_stackovf_trap): Delete.
    * src/m4.c (stackovf_handler): Delete.
    (main): Use c_stack_action instead of setup_stackovf_trap.  If
    stack overflow is detectable, don't limit -L artificially.
    (usage): Document unlimited default on supported systems.
    * doc/m4.texinfo (Limits control): Document new default nesting
    limit.
    * NEWS: Document this change.
    
    Signed-off-by: Eric Blake <address@hidden>

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