to sane-config missed during fix to stop using LIBS to link everything.
Add back in code to move LDFLAGS out of $GPHOTO2_LIBS and into
GPHOTO2_LDFLAGS.
also add V_REV.
* backend/Makefile.am: Use variables to add libraries to backends
instead of direct substitution. Easier to touch up variables on
problem platforms then substitution. Also, add back in creating
dll.d directory; missed during conversion.
* backend/genesys_gl841.c: Portablity fixes for strict
C compilers.
Fix a few bugs with "all" and "uninstall" targets to work when
$(builddir) != $(srcdir). Added $(DESTDIR) to uninstall target.
Made $(distdir) related to current directory to match automake.