Future-proof a piece of conditional compilation.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@4822

diff --git a/coregrind/m_syswrap/syswrap-linux.c b/coregrind/m_syswrap/syswrap-linux.c
index 53c3d2b4cd10face133bfa7ff11f070e0ccfe02c..4afb48c30d6ca1daae844753c46c0b1ba60d794e 100644 (file)
--- a/coregrind/m_syswrap/syswrap-linux.c
+++ b/coregrind/m_syswrap/syswrap-linux.c
@@ -615,8 +615,10 @@ PRE(sys_mmap2)
 
 #if defined(VGP_x86_linux) || defined(VGP_ppc32_linux)
    offset = ARG6 * VKI_PAGE_SIZE;
-#else
+#elif defined(VGP_amd64_linux)
    offset = ARG6;
+#elif
+#  error Unknown platform
 #endif
 
    /* Otherwise we're OK (so far).  Install aspacem's choice of