Do not create $(bfdlibdir) and $(bfdincludedir) if !INSTALL_LIBBFD.
opcodes/:
* Makefile.am (bfdlibdir, bfdincludedir): Move definition ...
[INSTALL_LIBBFD]: ... here, ...
[INSTALL_LIBBFD]: ... and empty overrides here.
[!INSTALL_LIBBFD]: (rpath_bfdlibdir): New variable.
[!INSTALL_LIBBFD] (libbfd_la_LDFLAGS): Use it.
* Makefile.in: Regenerate.
* configure: Regenerate.
bfd/:
* acinclude.m4 (AM_INSTALL_LIBBFD): Call AM_SUBST_NOTMAKE for
bfdlibdir and bfdincludedir.
* Makefile.am (bfdlibdir, bfdincludedir): Move definition ...
[INSTALL_LIBBFD]: ... here, ...
[INSTALL_LIBBFD]: ... and empty overrides here.
[!INSTALL_LIBBFD]: (rpath_bfdlibdir): New variable.
[!INSTALL_LIBBFD] (libbfd_la_LDFLAGS): Use it.
* Makefile.in: Regenerate.
* configure: Regenerate.
bfd/doc/:
* Makefile.in: Regenerate.