Build fails: "sane-backends", "libggi", "libgii" on netbsd-8/amd64

["John D. Baker" <jdbaker%mylinuxisp.com@localhost>]

My netbsd-8/amd64 test system finally completed 'pkg_rolling-replace'
with several exclusions due to package failures seen in previous
attempts.

Also seen on -current/amd64.  Both systems use GCC (5.5, 6.4, respectively)
rather than 'clang' as the most-frequent -current bulk builds do.

Other than "libgphoto2" and "audacity" (whose failures are reflected in
bulk-build logs), the following packages fail:

"graphics/sane-backends" fails during the build phase with:

[...]
Generating index for sane.tex...
no: not found
Makefile:965: recipe for target 'sane.ind' failed
gmake[1]: *** [sane.ind] Error 127
gmake[1]: Leaving directory '/d0/build/pkgsrc/graphics/sane-backends/work/sane-backends-1.0.27/doc'
Makefile:534: recipe for target 'all-recursive' failed
gmake: *** [all-recursive] Error 1
*** Error code 2

Stop.
make[1]: stopped in /d0/nbsd/pkgsrc/graphics/sane-backends
*** Error code 1

Stop.
make: stopped in /d0/nbsd/pkgsrc/graphics/sane-backends

I haven't investigated yet, but perhaps a Makefile got botched?


"graphics/libggi" fails during the configure phase with:

[...]
checking for fork... yes
checking for kill... yes
checking for giiInit in -lgii... no
configure: error: LibGII is not properly installed on the system.
                You need LibGII for building LibGGI. Please compile
                LibGII first.
*** Error code 1

Stop.
make[1]: stopped in /d0/nbsd/pkgsrc/graphics/libggi
*** Error code 1

Stop.
make: stopped in /d0/nbsd/pkgsrc/graphics/libggi

Not investigated yet, but in a related move, attempting to (re-)build
"graphics/libgii" fails during the build phase with:

[...]
--- evtimestamp ---
libtool: link: gcc -O2 -D_FORTIFY_SOURCE=2 -I/d0/build/pkgsrc/graphics/libgii/work/.buildlink/include -I/d0/build/pkgsrc/graphics/libgii/work/.x11-buildlink/include -Wall -pedantic -D_REENTRANT -D_THREAD_SAFE -DDEBUG -g -std=gnu99 -Wpointer-arith -Wsign-compare -Wstrict-prototypes -Wswitch -Wmissing-prototypes -Wreturn-type -Wshadow -Wnested-externs -Wredundant-decls -Wuninitialized -Wcast-qual -Wwrite-strings -Werror-implicit-function-declaration -Wl,-rpath -Wl,/usr/X11R7/lib -Wl,-rpath -Wl,/usr/pkg/lib -o .libs/evtimestamp evtimestamp.o  -L/d0/build/pkgsrc/graphics/libgii/work/libgii-1.0.2/gg/.libs -L/d0/build/pkgsrc/graphics/libgii/work/.buildlink/lib -L/d0/build/pkgsrc/graphics/libgii/work/.x11-buildlink/lib -L../../gii/.libs -lgii -lX11 -lgg -lpthread -Wl,-rpath,/usr/pkg/lib
../../gii/.libs/libgii.so: undefined reference to `XDGAQueryExtension'
../../gii/.libs/libgii.so: undefined reference to `XDGAKeyEventToXKeyEvent'
../../gii/.libs/libgii.so: undefined reference to `XDGASelectInput'
[...]
--- init ---
libtool: link: gcc -O2 -D_FORTIFY_SOURCE=2 -I/d0/build/pkgsrc/graphics/libgii/work/.buildlink/include -I/d0/build/pkgsrc/graphics/libgii/work/.x11-buildlink/include -Wall -pedantic -D_REENTRANT -D_THREAD_SAFE -DDEBUG -g -std=gnu99 -Wpointer-arith -Wsign-compare -Wstrict-prototypes -Wswitch -Wmissing-prototypes -Wreturn-type -Wshadow -Wnested-externs -Wredundant-decls -Wuninitialized -Wcast-qual -Wwrite-strings -Werror-implicit-function-declaration -Wl,-rpath -Wl,/usr/X11R7/lib -Wl,-rpath -Wl,/usr/pkg/lib -o .libs/init init.o  -L/d0/build/pkgsrc/graphics/libgii/work/libgii-1.0.2/gg/.libs -L/d0/build/pkgsrc/graphics/libgii/work/.buildlink/lib -L/d0/build/pkgsrc/graphics/libgii/work/.x11-buildlink/lib -L../../gii/.libs -lgii -lX11 -lgg -lpthread -Wl,-rpath,/usr/pkg/lib
../../gii/.libs/libgii.so: undefined reference to `XDGAQueryExtension'
../../gii/.libs/libgii.so: undefined reference to `XDGAKeyEventToXKeyEvent'
../../gii/.libs/libgii.so: undefined reference to `XDGASelectInput'
*** [init] Error code 1

I think I saw something about some "*dga*" mishandling in another thread.
More "xorgproto"/"x11-links" fallout?

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