GUB fail with smob templates

[Phil Holmes]

GUB has again coughed on the changes to the SMOB code.  It's well out of 
my depth to understand why, but I've pasted below some of the error 
messages: the make is built with -j14, so I presume that's why there are 
so many.

/home/gub/gub/target/darwin-ppc/src/lilypond-git.sv.gnu.org--lilypond.git-
release-unstable/lily/include/smobs.tcc:131: error: invalid operands of 
types 'scm_unused_struct* (Grob::*)()' and 'scm_unused_struct* 
(Smob_base<Grob>::*)()' to binary 'operator!='

/home/gub/gub/target/darwin-ppc/src/lilypond-git.sv.gnu.org--lilypond.git-
release-unstable/lily/include/smobs.tcc:131: error: invalid operands of 
types 'scm_unused_struct* (Stencil::*)()' and 'scm_unused_struct* 
(Smob_base<Stencil>::*)()' to binary 'operator!='

make[1]: *** [out/arpeggio.o] Error 1

/home/gub/gub/target/darwin-ppc/src/lilypond-git.sv.gnu.org--lilypond.git-
release-unstable/lily/include/smobs.tcc:131: error: invalid operands of 
types 'scm_unused_struct* (Translator::*)()' and 'scm_unused_struct* 
(Smob_base<Translator>::*)()' to binary 'operator!='

/home/gub/gub/target/darwin-ppc/src/lilypond-git.sv.gnu.org--lilypond.git-
release-unstable/lily/include/smobs.tcc:131: error: invalid operands of 
types 'scm_unused_struct* (Translator::*)()' and 'scm_unused_struct* 
(Smob_base<Translator>::*)()' to binary 'operator!='

/home/gub/gub/target/darwin-ppc/src/lilypond-git.sv.gnu.org--lilypond.git-
release-unstable/lily/include/smobs.tcc:131: error: invalid operands of 
types 'scm_unused_struct* (Prob::*)()' and 'scm_unused_struct* 
(Smob_base<Prob>::*)()' to binary 'operator!='

/home/gub/gub/target/darwin-ppc/src/lilypond-git.sv.gnu.org--lilypond.git-
release-unstable/lily/include/smobs.tcc:131: error: invalid operands of 
types 'scm_unused_struct* (Grob::*)()' and 'scm_unused_struct* 
(Smob_base<Grob>::*)()' to binary 'operator!='

/home/gub/gub/target/darwin-ppc/src/lilypond-git.sv.gnu.org--lilypond.git-
release-unstable/lily/include/smobs.tcc:131: error: invalid operands of 
types 'scm_unused_struct* (Grob::*)()' and 'scm_unused_struct* 
(Smob_base<Grob>::*)()' to binary 'operator!='

/home/gub/gub/target/darwin-ppc/src/lilypond-git.sv.gnu.org--lilypond.git-
release-unstable/lily/include/smobs.tcc:131: error: invalid operands of 
types 'scm_unused_struct* (Prob::*)()' and 'scm_unused_struct* 
(Smob_base<Prob>::*)()' to binary 'operator!='

/home/gub/gub/target/darwin-ppc/src/lilypond-git.sv.gnu.org--lilypond.git-
release-unstable/lily/include/smobs.tcc:131: error: invalid operands of 
types 'scm_unused_struct* (Pitch::*)()' and 'scm_unused_struct* 
(Smob_base<Pitch>::*)()' to binary 'operator!='

/home/gub/gub/target/darwin-ppc/src/lilypond-git.sv.gnu.org--lilypond.git-
release-unstable/lily/include/smobs.tcc:131: error: invalid operands of 
types 'scm_unused_struct* (Translator::*)()' and 'scm_unused_struct* 
(Smob_base<Translator>::*)()' to binary 'operator!='

/home/gub/gub/target/darwin-ppc/src/lilypond-git.sv.gnu.org--lilypond.git-
release-unstable/lily/include/smobs.tcc:131: error: invalid operands of 
types 'scm_unused_struct* (Grob::*)()' and 'scm_unused_struct* 
(Smob_base<Grob>::*)()' to binary 'operator!='

/home/gub/gub/target/darwin-ppc/src/lilypond-git.sv.gnu.org--lilypond.git-
release-unstable/lily/include/smobs.tcc:131: error: invalid operands of 
types 'scm_unused_struct* (Grob::*)()' and 'scm_unused_struct* 
(Smob_base<Grob>::*)()' to binary 'operator!='

/home/gub/gub/target/darwin-ppc/src/lilypond-git.sv.gnu.org--lilypond.git-
release-unstable/lily/include/smobs.tcc:131: error: invalid operands of 
types 'scm_unused_struct* (Prob::*)()' and 'scm_unused_struct* 
(Smob_base<Prob>::*)()' to binary 'operator!='

/home/gub/gub/target/darwin-ppc/src/lilypond-git.sv.gnu.org--lilypond.git-
release-unstable/lily/include/smobs.tcc:131: error: invalid operands of 
types 'scm_unused_struct* (Grob_array::*)()' and 'scm_unused_struct* 
(Smob_base<Grob_array>::*)()' to binary 'operator!='

/home/gub/gub/target/darwin-ppc/src/lilypond-git.sv.gnu.org--lilypond.git-
release-unstable/lily/include/smobs.tcc:131: error: invalid operands of 
types 'scm_unused_struct* (Stencil::*)()' and 'scm_unused_struct* 
(Smob_base<Stencil>::*)()' to binary 'operator!='

/home/gub/gub/target/darwin-ppc/src/lilypond-git.sv.gnu.org--lilypond.git-
release-unstable/lily/include/smobs.tcc:131: error: invalid operands of 
types 'scm_unused_struct* (Prob::*)()' and 'scm_unused_struct* 
(Smob_base<Prob>::*)()' to binary 'operator!='

make[1]: *** [out/arpeggio-engraver.o] Error 1
make[1]: *** [out/articulations.o] Error 1

/home/gub/gub/target/darwin-ppc/src/lilypond-git.sv.gnu.org--lilypond.git-
release-unstable/lily/include/smobs.tcc:131: error: invalid operands of 
types 'scm_unused_struct* (Grob::*)()' and 'scm_unused_struct* 
(Smob_base<Grob>::*)()' to binary 'operator!='

/home/gub/gub/target/darwin-ppc/src/lilypond-git.sv.gnu.org--lilypond.git-
release-unstable/lily/include/smobs.tcc:131: error: invalid operands of 
types 'scm_unused_struct* (Prob::*)()' and 'scm_unused_struct* 
(Smob_base<Prob>::*)()' to binary 'operator!='

make[1]: *** [out/accidental.o] Error 1