diff --git a/Makefile b/Makefile
index 3383cb14d..bb65aed74 100644
--- a/Makefile
+++ b/Makefile
@@ -285,7 +285,7 @@ endif
 $(C_BUILDDIR)/%.o : $(C_SUBDIR)/%.c $$(c_dep)
 ifeq (,$(KEEP_TEMPS))
 	@echo "$(CC1) <flags> -o $@ $<"
-	@$(CPP) $(CPPFLAGS) $< | $(PREPROC) $< charmap.txt -i | { $(CC1) $(CFLAGS) -o - -; echo -e ".text\n\t.align\t2, 0"; } | $(AS) $(ASFLAGS) -o $@ -
+	@$(CPP) $(CPPFLAGS) $< | $(PREPROC) $< charmap.txt -i | $(CC1) $(CFLAGS) -o - - | cat - <(echo -e ".text\n\t.align\t2, 0") | $(AS) $(ASFLAGS) -o $@ -
 else
 	@$(CPP) $(CPPFLAGS) $< -o $(C_BUILDDIR)/$*.i
 	@$(PREPROC) $(C_BUILDDIR)/$*.i charmap.txt | $(CC1) $(CFLAGS) -o $(C_BUILDDIR)/$*.s
@@ -302,7 +302,7 @@ endif
 $(GFLIB_BUILDDIR)/%.o : $(GFLIB_SUBDIR)/%.c $$(c_dep)
 ifeq (,$(KEEP_TEMPS))
 	@echo "$(CC1) <flags> -o $@ $<"
-	@$(CPP) $(CPPFLAGS) $< | $(PREPROC) $< charmap.txt -i | { $(CC1) $(CFLAGS) -o - -; echo -e ".text\n\t.align\t2, 0"; } | $(AS) $(ASFLAGS) -o $@ -
+	@$(CPP) $(CPPFLAGS) $< | $(PREPROC) $< charmap.txt -i | $(CC1) $(CFLAGS) -o - - | cat - <(echo -e ".text\n\t.align\t2, 0") | $(AS) $(ASFLAGS) -o $@ -
 else
 	@$(CPP) $(CPPFLAGS) $< -o $(GFLIB_BUILDDIR)/$*.i
 	@$(PREPROC) $(GFLIB_BUILDDIR)/$*.i charmap.txt | $(CC1) $(CFLAGS) -o $(GFLIB_BUILDDIR)/$*.s