Replace use of __amd64__ with VGA_amd64.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3936 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/coregrind/m_libcsignal.c b/coregrind/m_libcsignal.c
index b62e488..d32d7ee 100644
--- a/coregrind/m_libcsignal.c
+++ b/coregrind/m_libcsignal.c
@@ -224,7 +224,7 @@
// __NR_rt_sigpending. This function will have to be abstracted in some
// way to account for this. In the meantime, the easy option is to forget
// about it for AMD64 until it's needed.
-#ifdef __amd64__
+#if defined(VGA_amd64)
I_die_here;
#else
SysRes res = VG_(do_syscall1)(__NR_sigpending, (UWord)set);