Fix objc tests

gdb/testsuite/gdb.objc/basicclass.m

@@ -1,6 +1,7 @@
-#include <objc/Object.h>
+#import <Foundation/Foundation.h>
+#include <stdio.h>
 
-@interface BasicClass: Object
+@interface BasicClass: NSObject
 {
   id object;
 }
@@ -74,7 +75,7 @@ const char *_NSPrintForDebugger(id object)
 {
   /* This is not really what _NSPrintForDebugger should do, but it
      is a simple test if gdb can call this function */
-  if (object && [object respondsTo: @selector(myDescription)])
+  if (object && [object respondsToSelector: @selector(myDescription)])
     return [object myDescription];
 
   return NULL;

gdb/testsuite/gdb.objc/nondebug.m

@@ -1,10 +1,11 @@
-#include <objc/Object.h>
+#import <Foundation/Foundation.h>
+#include <stdio.h>
 
-@interface NonDebug: Object
+@interface NonDebug: NSObject
 {
 }
 @end
-@interface NonDebug2: Object
+@interface NonDebug2: NSObject
 {
 }
 @end

gdb/testsuite/gdb.objc/objcdecode.m

@@ -1,6 +1,7 @@
-#include <objc/Object.h>
+#import <Foundation/Foundation.h>
+#include <stdio.h>
 
-@interface Decode: Object
+@interface Decode: NSObject
 {
 }
 - multipleDef;
@@ -42,7 +43,7 @@ const char *_NSPrintForDebugger(id object)
 {
   /* This is not really what _NSPrintForDebugger should do, but it
      is a simple test if gdb can call this function */
-  if (object && [object respondsTo: @selector(myDescription)])
+  if (object && [object respondsToSelector: @selector(myDescription)])
     return [object myDescription];
 
   return NULL;

gdb/testsuite/lib/gdb.exp

@@ -3742,7 +3742,7 @@ proc gdb_compile_shlib_pthreads {sources dest options} {
 proc gdb_compile_objc {source dest type options} {
     set built_binfile 0
     set why_msg "unrecognized error"
-    foreach lib {-lobjc -lpthreads -lpthread -lthread solaris} {
+    foreach lib {-lgnustep-base -lobjc -lpthreads -lpthread -lthread solaris} {
         # This kind of wipes out whatever libs the caller may have
         # set.  Or maybe theirs will override ours.  How infelicitous.
         if { $lib == "solaris" } {
@@ -3751,6 +3751,7 @@ proc gdb_compile_objc {source dest type options} {
         if { $lib != "-lobjc" } {
 	  set lib "-lobjc $lib"
 	}
+	
         set options_with_lib [concat $options [list libs=$lib quiet]]
         set ccout [gdb_compile $source $dest $type $options_with_lib]
         switch -regexp -- $ccout {