patch for compilers that don't define "unix"

[matthew green]

   This is not the proper fix though.  The rdi-share subdirectory is supposed to 
   contain code shared with ARM, so we shouldn't make local modifications in there
   (unless absolutely necessary).


how about this then?  tested on netbsd/i386 and solaris 2.6.  you'll need to
regenerate `configure' after applying this patch.


thanks.



2001-01-15  matthew green  <mrg@redhat.com>

	* configure.in: Define missing `__unix' if `__unix__' is present.
	* configure: Regenerate.



Index: configure.in
===================================================================
RCS file: /cvs/src/src/gdb/configure.in,v
retrieving revision 1.53
diff -p -r1.53 configure.in
*** configure.in	2000/12/21 16:16:17	1.53
--- configure.in	2001/01/15 18:21:54
*************** if test x${want_included_regex} = xtrue;
*** 703,708 ****
--- 703,718 ----
      AC_DEFINE(USE_INCLUDED_REGEX)
  fi
  AC_SUBST(REGEX)
+ 
+ # NetBSD compiler defines __unix__ only; rdi-share needs __unix.
+ AC_CACHE_CHECK([for NetBSD [__unix__]], gdb_cv_missing_netbsd___unix,
+ [AC_EGREP_CPP(lose, [
+ #if defined (__unix__) || !defined (__unix)
+ lose
+ #endif],[gdb_cv_missing_netbsd___unix=yes],[gdb_cv_missing_netbsd___unix=no])])
+ if test x$gdb_cv_missing_netbsd___unix = xyes; then
+   CFLAGS="$CFLAGS -D__unix"
+ fi
  
  # In the Cygwin environment, we need some additional flags.
  AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,