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$NetBSD: patch-ac,v 1.5 2004/10/01 13:35:37 adam Exp $

--- tclUnixInit.c.orig	2004-03-29 18:49:36.000000000 +0000
+++ tclUnixInit.c
@@ -28,6 +28,11 @@
 #	include <dlfcn.h>
 #   endif
 #endif
+#if defined(__NetBSD__)
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#include <sys/utsname.h>
+#endif
 
 /*
  * The Init script (common to Windows and Unix platforms) is
@@ -733,6 +738,11 @@ TclpSetVariables(interp)
     int unameOK;
     CONST char *user;
     Tcl_DString ds;
+#if defined(__NetBSD__)
+    char machine_arch[SYS_NMLN];
+    int mib[2] = { CTL_HW, HW_MACHINE_ARCH };
+    size_t len = sizeof(machine_arch);
+#endif
 
 #ifdef HAVE_CFBUNDLE
     char tclLibPath[MAXPATHLEN + 1];
@@ -835,8 +845,16 @@ TclpSetVariables(interp)
 	    Tcl_SetVar2(interp, "tcl_platform", "osVersion", name.release,
 		    TCL_GLOBAL_ONLY|TCL_APPEND_VALUE);
 	}
+#if defined(__NetBSD__)
+	if (sysctl(mib, sizeof(mib) / sizeof(int), machine_arch, &len, NULL, 0) < 0)
+	    unameOK = 0;
+	else
+	    Tcl_SetVar2(interp, "tcl_platform", "machine", machine_arch,
+		    TCL_GLOBAL_ONLY);
+#else
 	Tcl_SetVar2(interp, "tcl_platform", "machine", name.machine,
 		TCL_GLOBAL_ONLY);
+#endif
     }
 #endif
     if (!unameOK) {