diff -r edc2a2659c77 -r 2657ee0d2d14 make/common/Defs-linux.gmk
--- a/make/common/Defs-linux.gmk	Wed Jun 02 15:39:28 2010 -0700
+++ b/make/common/Defs-linux.gmk	Thu Jun 03 19:37:48 2010 +0100
@@ -176,7 +176,16 @@
   CXXFLAGS_DBG	+= $(CC_LOWER_OPT)
 endif
 
-CPPFLAGS_COMMON = -D$(ARCH) -DARCH='"$(ARCH)"' -DLINUX $(VERSION_DEFINES) \
+CPP_ARCH_FLAGS = -DARCH='"$(ARCH)"'
+
+# Alpha arch does not like "alpha" defined (potential general arch cleanup issue here)
+ifneq ($(ARCH),alpha)
+  CPP_ARCH_FLAGS += -D$(ARCH)
+else
+  CPP_ARCH_FLAGS += -D_$(ARCH)_
+endif
+
+CPPFLAGS_COMMON = $(CPP_ARCH_FLAGS) -DLINUX $(VERSION_DEFINES) \
 		  -D_LARGEFILE64_SOURCE -D_GNU_SOURCE -D_REENTRANT
 
 ifeq ($(ARCH_DATA_MODEL), 64)