--- autoconf-2.12-ref/acgeneral.m4	Tue Nov 26 13:09:42 1996
+++ autoconf-2.12/acgeneral.m4	Wed Apr 16 22:16:40 1997
@@ -1063,7 +1063,7 @@
 # and sets the high bit in the cache file unless we assign to the vars.
 changequote(, )dnl
 (set) 2>&1 |
-  case `(ac_space=' '; set) 2>&1` in
+  case `(ac_space=' '; set) 2>&1 | grep ac_space` in
   *ac_space=\ *)
     # `set' does not quote correctly, so add quotes (double-quote substitution
     # turns \\\\ into \\, and sed turns \\ into \).
--- autoconf-2.12-ref/acspecific.m4	Wed Nov 20 00:10:49 1996
+++ autoconf-2.12/acspecific.m4	Sat Apr 19 15:33:08 1997
@@ -451,8 +451,14 @@
 	    # OSF/1 installbsd also uses dspmsg, but is usable.
 	    :
 	  else
-	    ac_cv_path_install="$ac_dir/$ac_prog -c"
-	    break 2
+	    if test $ac_prog = installbsd &&
+	      grep src/bos $ac_dir/$ac_prog >/dev/null 2>&1; then
+	      # AIX installbsd doesn't work without option "-g".
+	      :
+	    else
+	      ac_cv_path_install="$ac_dir/$ac_prog -c"
+	      break 2
+	    fi
 	  fi
 	fi
       done