bug#30106: Loading file /sources/emacs/lisp/emacs-lisp/ert.elc failed to provide feature `mod-test'

[Jean Louis]

On Mon, Jan 15, 2018 at 03:14:57PM +0200, Eli Zaretskii wrote:
> > Date: Mon, 15 Jan 2018 01:12:28 +0300
> > From: Jean Louis <bugs@gnu.support>
> > Cc: Jean Louis <bugs@gnu.support>, 30106@debbugs.gnu.org
> > 
> > Output of grep MODULES src/config.h:
> > 
> > #define EMACS_CONFIG_FEATURES "XAW3D XPM JPEG TIFF GIF PNG RSVG SOUND GPM 
> > DBUS GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE XFT ZLIB 
> > TOOLKIT_SCROLL_BARS LUCID X11 MODULES LCMS2"
> > #define HAVE_MODULES 1
> > #define MODULES_SUFFIX ".so"
> > 
> > > And does src/Makefile have this line:
> > > 
> > >   MODULES_OBJ = dynlib.o emacs-module.o
> > 
> > Output of grep MODULES Makefile:
> > 
> > LIBMODULES = -ldl
> > MODULES_OBJ = dynlib.o emacs-module.o
> >     eval.o floatfns.o fns.o font.o print.o lread.o $(MODULES_OBJ) \
> >    $(NOTIFY_LIBS) $(LIB_MATH) $(LIBZ) $(LIBMODULES) $(LIBSYSTEMD_LIBS) \
> 
> This means your build does have support for modules.
> 
> Returning to the original error:
> 
>     ELC      src/emacs-module-tests.elc
> 
>   In toplevel form:
>   src/emacs-module-tests.el:32:1:Error: Loading file 
> /sources/emacs/lisp/emacs-lisp/ert.elc failed to provide feature `mod-test'
> 
> line 32 of emacs-module-test.el is this:
> 
>   (require 'mod-test mod-test-file)
> 
> So one problem could be that mod-test-file is somehow not calculated
> correctly:
> 
>   (eval-and-compile
>     (defconst mod-test-file
>       (substitute-in-file-name
>        "$EMACS_TEST_DIRECTORY/data/emacs-module/mod-test")
>       "File name of the module test file."))
> 
> So maybe EMACS_TEST_DIRECTORY is incorrect, you your Emacs tree
> doesn't have the test/data/emacs-module/mod-test directory, or there's
> no mod-test.so file in that directory?

I can see that 'make check' fails so:

  ELC      src/emacs-module-tests.elc
Emacs module assertion: Module function called from outside the current Lisp 
thread
/bin/sh: line 1:  6214 Aborted                 EMACSLOADPATH= LC_ALL=C 
EMACS_TEST_DIRECTORY=/sources/emacs/test "../src/emacs" --module-assertions 
-batch --no-site-file --no-site-lisp -L ":." -f batch-byte-compile 
src/emacs-module-tests.el
make[3]: *** [Makefile:146: src/emacs-module-tests.elc] Error 134
make[3]: Target 'src/emacs-module-tests.log' not remade because of errors.
  GEN      src/eval-tests.log