[Octave-bug-tracker] [bug #42176] Octave built without OpenMP crashes when unloading OpenMP-enabled oct-files

[John W. Eaton]

Update of bug #42176 (project octave):

                  Status:             In Progress => Fixed                  
             Open/Closed:                    Open => Closed                 

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Follow-up Comment #11:

I checked the sources of autoconf 2.58 and even it has _AC_LANG_PREFIX.  Then
I tried a bootstrap for the Octave sources with autoconf 2.62 and automake
1.11.  2.62, the largest numbers I could find in the sources.  That failed
with the following messages:


running: AUTOPOINT=true LIBTOOLIZE=true autoreconf --verbose --install --force
-I m4  --no-recursive
autoreconf: Entering directory `.'
autoreconf: configure.ac: not using Gettext
autoreconf: running: aclocal --force -I m4
main::scan_file() called too early to check prototype at /tmp/ac/bin/aclocal
line 617.
autoreconf: configure.ac: tracing
autoreconf: running: true --copy --force
main::scan_file() called too early to check prototype at /tmp/ac/bin/aclocal
line 617.
autoreconf: running: /tmp/ac/bin/autoconf --include=m4 --force
configure.ac:1638: error: possibly undefined macro: AC_MSG_WARN
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.
configure:7074: error: possibly undefined macro: m4_set_add
configure:122937: error: possibly undefined macro: m4_set_foreach
autoreconf: /tmp/ac/bin/autoconf failed with exit status: 1
./bootstrap: autoreconf failed


The m4_set_add, m4_set_foreach macros were added in autoconf 2.63.  Using that
version, bootstrap succeeded and the resulting configure script seemed to work
OK, so I bumped the required version in Octave's configure.ac and removed the
AC_PREREQ from the ax_openmp.m4 file.

OK?

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