Back to the original post and the Solaris installation notes:
[...] proceed as described in the build instructions,
where we strongly recommend using GNU make and specifying
an absolute path to invoke srcdir/configure.
Could someone change the Solaris installation notes to something like:
[...] proceed as described in the build instructions. Specify
an absolute path to invoke srcdir/configure or "make install"
will fail.
Well, "will fail" says that it will fail in every case, which we probably
don't want to guarantee. And if we put it like that, we more or less
claim that it will work up to "make install", which we don't want to
guarantee, either. ;-)