[etherlab-users] etherlab-users at etherlab.org

Thu Jun 18 00:45:31 CEST 2020

"automake: warnings are treated as errors" is most likely your problem.

Check your environment; it looks like automake will treat WARNINGS=error as a request for this, for example.  There may be other triggers as well.

Alternatively, to fix the "subdir-objects" warning at least you can try using the unofficial patchset at https://sourceforge.net/u/uecasm/etherlab-patches/ci/default/tree/ -- it definitely resolves that particular warning, though I'm not sure if it's completely warning-clean.

Gavin Lambert
Senior Software Developer

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From: Steih, Martin
Sent: Wednesday, 17 June 2020 23:14
To: etherlab-users at etherlab.org
Subject: [etherlab-users] etherlab-users at etherlab.org

Hello,

lately, after getting the code from sourceforge, I am getting errors trying to bootstrap the etherlab-master code. See the output below. Has anyone an idea of why this error occurs? It did not occur two month ago but now occurs consistently on stretch as well buster.

+ touch ChangeLog                                                                                                       + autoreconf -i                                                                                                         configure.ac:44: installing 'autoconf/compile'                                                                          configure.ac:44: installing 'autoconf/config.guess'                                                                     configure.ac:44: installing 'autoconf/config.sub'                                                                       configure.ac:33: installing 'autoconf/install-sh'                                                                       configure.ac:33: installing 'autoconf/missing'                                                                          examples/dc_user/Makefile.am: installing 'autoconf/depcomp'                                                             automake: warnings are treated as errors                                                                                /usr/share/automake-1.15/am/ltlibrary.am: warning: 'libethercat.la': linking libtool libraries using a non-POSIX        /usr/share/automake-1.15/am/ltlibrary.am: archiver requires 'AM_PROG_AR' in 'configure.ac'                              lib/Makefile.am:33:   while processing Libtool library 'libethercat.la'                                                 tool/Makefile.am:38: warning: source file '../master/soe_errors.c' is in a subdirectory,                                tool/Makefile.am:38: but option 'subdir-objects' is disabled                                                            automake: warning: possible forward-incompatibility.                                                                    automake: At least a source file is in a subdirectory, but the 'subdir-objects'                                         automake: automake option hasn't been enabled.  For now, the corresponding output                                       automake: object file(s) will be placed in the top-level directory.  However,                                           automake: this behaviour will change in future Automake versions: they will                                             automake: unconditionally cause object files to be placed in the same subdirectory                                      automake: of the corresponding sources.                                                                                 automake: You are advised to start using 'subdir-objects' option throughout your                                        automake: project, to avoid future incompatibilities.                                                                   autoreconf: automake failed with exit status: 1

i. A. Martin Steih
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