[Octave-bug-tracker] [bug #55367] Linking fails on cygwin

[Markus Mützel]

URL:
  <https://savannah.gnu.org/bugs/?55367>

                 Summary: Linking fails on cygwin
                 Project: GNU Octave
            Submitted by: mmuetzel
            Submitted on: Thu 03 Jan 2019 11:11:48 AM UTC
                Category: Configuration and Build System
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Build Failure
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Microsoft Windows

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Details:

As reported in bug #53627, Octave fails to compile with default parameters on
cygwin with the following linking error:

config.status: executing liboctave/mk-version-h.sh commands
CXXLD libinterp/dldfcn/__delaunayn__.la
libinterp/dldfcn/.libs/libinterp_dldfcn___delaunayn___la-__delaunayn__.o: In
function `free_qhull_memory':
/pub/devel/octave/hg/octave-build/../octave/libinterp/dldfcn/__delaunayn__.cc:84:
undefined reference to `warning(char const*, ...)'


Linking reportedly succeeds if configure is run with the
"--enable-link-all-dependencies" option.

Should this option be enabled by default on cygwin (and possibly other
platforms requiring "-no-undefined")?




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