diff --git a/swlibs/include/make/makefile.autoconf.bottom b/swlibs/include/make/makefile.autoconf.bottom
index 3d04279..b528374 100644
--- a/swlibs/include/make/makefile.autoconf.bottom
+++ b/swlibs/include/make/makefile.autoconf.bottom
@@ -53,7 +53,8 @@ GLIDE_DEBUG_GDEFS = -DGDBG_INFO_ON -DGLIDE_DEBUG
 else
 ifeq ("@FX_GLIDE_BUILD_ARCHITECTURE@","alpha")
 GLIDE_DEBUG_GCFLAGS = -O2 -mcpu=ev6 
-GLIDE_DEBUG_GDEFS = -DBIG_OPT
+GLIDE_DEBUG_GDEFS = -fomit-frame-pointer \
+	                -fexpensive-optimizations -ffast-math -DBIG_OPT
 else
 ifeq ("@FX_GLIDE_BUILD_ARCHITECTURE@","ia64")
 GLIDE_DEBUG_GCFLAGS = -O3