libtool: compile: unable to infer tagged configuration

[Mayuresh <mayuresh%acm.org@localhost>]

In a recent builk build a few packages are failing with the error of
following kind:

One such example is:

    libtool: compile: unable to infer tagged configuration
    libtool:   error: specify a tag with '--tag'
    gmake[3]: *** [Makefile:436: object.lo] Error 1
    gmake[3]: *** Waiting for unfinished jobs....
    libtool: compile: unable to infer tagged configuration
    libtool: compile: unable to infer tagged configuration
    libtool: compile: unable to infer tagged configuration
    libtool:   error: specify a tag with '--tag'
    libtool:   error: specify a tag with '--tag'
    libtool:   error: specify a tag with '--tag'
    gmake[3]: *** [Makefile:436: point.lo] Error 1
    gmake[3]: *** [Makefile:436: vertex.lo] Error 1
    gmake[3]: *** [Makefile:436: segment.lo] Error 1
    gmake[3]: Leaving directory '/usr/pkgsrc/work/graphics/gts/work/gts-0.7.6/src'
    gmake[2]: *** [Makefile:294: all] Error 2
    gmake[2]: Leaving directory '/usr/pkgsrc/work/graphics/gts/work/gts-0.7.6/src'
    gmake[1]: *** [Makefile:297: all-recursive] Error 1
    gmake[1]: Leaving directory '/usr/pkgsrc/work/graphics/gts/work/gts-0.7.6'
    gmake: *** [Makefile:205: all] Error 2
    *** Error code 2
    
    Stop.
    bmake[1]: stopped in /usr/pkgsrc/graphics/gts
    *** Error code 1


I can see some Makefiles, e.g. archivers/bzip2 having explicit calls to
libtool e.g.

    ${LIBTOOL} --tag=CC --mode=link ${CC}...

Is this something that is required in the packages facing above issue?

Strangely, if I make a non bulk build of the same package, it does not
lead to this error.

-- 
Mayuresh