Patches from Ralf Corsepius <corsepiu@faw.uni-ulm.de> and myself to

make solaris target buildable.

    > 1.  The ipc check fails since solaris does not define union semun.
    > The unix port code actually defines this type itself on solaris.  Doing
    > the same thing lets it get configured.  Then...

    > 2.  It looks like BSDINSTALL is not defined properly.

    BSDINSTALL is defined in make/host.cfg.in as
    BSDINSTALL=@INSTALL@

    @INSTALL@ is generated by autoconf's standard macro AC_PROG_INSTALL, which
    is widely used in almost any autoconf/automake configured package. In case
    there is really something wrong with it, then it must be considered a bug
    in autoconf.

    I can see a doubious fragment in AC_PROG_INSTALL, which is used when no
    appropriate bsd-install is found.

Finally Ralf saw a problem with the find on solaris which I also saw and
fixed.

tools/cpu/sh/Makefile.in

@@ -55,8 +55,8 @@ ${PGMS}: $(OBJS) $(LINK_FILES)
 	$(make-exe)
 
 $(DESTDIR):
-	$(BSDINSTALL) $(INSTDIRFLAGS) $@
+	@INSTALL@ $(INSTDIRFLAGS) $@
 
 # Install the program
 install:  $(DESTDIR) $(PGMS)
-	$(BSDINSTALL) $(INSTBINFLAGS) ${PGMS} $(DESTDIR)
+	@INSTALL@ $(INSTBINFLAGS) ${PGMS} $(DESTDIR)