[gdb/testsuite] Fix gdb.base/enum_cond.exp on arm-linux

On arm-linux, I run into:
...
gdb compile failed, ld: warning: enum_cond.o uses variable-size enums yet \
  the output is to use 32-bit enums; use of enum values across objects may fail
UNTESTED: gdb.base/enum_cond.exp: failed to compile
...

Fix this by using -nostdlib.

Tested on arm-linux and x86_64-linux.

Approved-By: Simon Marchi <simon.marchi@efficios.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.base/enum_cond.c b/gdb/testsuite/gdb.base/enum_cond.c
index 35e126a..df8830f 100644
--- a/gdb/testsuite/gdb.base/enum_cond.c
+++ b/gdb/testsuite/gdb.base/enum_cond.c
@@ -46,3 +46,19 @@ main (void)
   return 0;
 }
 
+void
+exit (int status)
+{
+#if HAVE_BUILTIN_TRAP
+  __builtin_trap ();
+#endif
+  while (1)
+    ;
+}
+
+void
+_start (void)
+{
+  main ();
+  exit (0);
+}