Index: Makefile.flags.am
===================================================================
--- Makefile.flags.am	(revision 9631)
+++ Makefile.flags.am	(working copy)
@@ -45,7 +45,7 @@
 			    -DVGO_linux=1 \
 			    -DVGP_amd64_linux=1
 AM_CFLAGS_AMD64_LINUX     = @FLAG_M64@ -fomit-frame-pointer \
-				@PREFERRED_STACK_BOUNDARY@ $(AM_CFLAGS_BASE)
+				$(AM_CFLAGS_BASE)
 AM_CCASFLAGS_AMD64_LINUX  = $(AM_CPPFLAGS_AMD64_LINUX) @FLAG_M64@ -g
 
 AM_FLAG_M3264_PPC32_LINUX = @FLAG_M32@