[PATCH] libstdc++ configure on AIX 4.[<3]

[David Edelsohn]

	libstdc++ configure.host tries so hard to avoid defining
os_include_dir as os/aix that it avoids setting it altogether.

Okay for mainline and GCC 3.3.3?

David


	PR other/12506
	* configure.host (aix4,aix*): Define os_include_dir to os/generic.

Index: configure.host
===================================================================
RCS file: /cvs/gcc/gcc/libstdc++-v3/configure.host,v
retrieving revision 1.18
diff -c -p -r1.18 configure.host
*** configure.host	16 Oct 2003 22:37:48 -0000	1.18
--- configure.host	17 Oct 2003 17:29:24 -0000
*************** case "${host_os}" in
*** 126,134 ****
--- 126,136 ----
      OPT_LDFLAGS="-Wl,-G"
      ;;
    aix4.*)
+     os_include_dir="os/generic"
      atomicity_include_dir="os/aix"
      ;;
    aix*)
+     os_include_dir="os/generic"
      atomicity_include_dir="cpu/generic"
      ;;
    bsd*)