--- cinelerra-5.1/guicast/Makefile	2026-10-18 15:28:24.291717633 +0200
+++ cinelerra-5.1/guicast/Makefile	2026-10-18 15:28:24.301408074 +0200
@@ -48,6 +48,10 @@ ifeq ($(OBJDIR), sparc64)
 BOOTSTRAPFLAGS := -DBOOTSTRAP="\"objcopy -B sparc -I binary -O elf32-sparc64\""
 endif
 
+ifeq ($(OBJDIR), alpha)
+BOOTSTRAPFLAGS := -DBOOTSTRAP="\"objcopy -B alpha -I binary -O elf64-alpha\""
+endif
+
 ifeq ($(OBJDIR), parisc)
 BOOTSTRAPFLAGS := -DBOOTSTRAP="\"objcopy -B hppa -I binary -O elf32-hppa\""
 endif
--- cinelerra-5.1/libzmpeg3/Makefile	2026-10-18 14:44:43.038912169 +0200
+++ cinelerra-5.1/libzmpeg3/Makefile	2026-10-18 14:44:43.036145718 +0200
@@ -9,12 +9,6 @@ NASM = nasm
 USE_MMX ?= 0
 DYNAMIC_FONTS ?= 1
 
-ifeq ($(OBJDIR), alpha)
-  ifneq ($(origin CFLAGS), environment)
-    CFLAGS := -O4 -arch ev67 -ieee -accept c99_keywords -gcc_messages
-  endif
-endif
-
 ifeq ($(USE_MMX), 1)
   CFLAGS += -DHAVE_MMX
   ASMOBJS = $(OBJDIR)/video/mmxidct.o