diff --git a/first/core.mk b/first/core.mk
index d2e32fc68..261a2c30e 100644
--- a/first/core.mk
+++ b/first/core.mk
@@ -51,7 +51,7 @@ endef
 
 # --- Add a raw to the queue
 
-define file
+define rawfile
 	$(eval q += $1)
 endef
 
diff --git a/lang/basic/src/build.mk b/lang/basic/src/build.mk
index 00d429107..95019babd 100644
--- a/lang/basic/src/build.mk
+++ b/lang/basic/src/build.mk
@@ -29,13 +29,13 @@ $g: $D/maketokentab $(OBJDIR)/$D/Lpars.h
 $(eval $q: $(OBJDIR)/$D/Lpars.h)
 $(eval $q: $(INCDIR)/print.h)
 
-$(call file, $(LIBEM_MES))
-$(call file, $(LIBEMK))
-$(call file, $(LIBEM_DATA))
-$(call file, $(LIBALLOC))
-$(call file, $(LIBPRINT))
-$(call file, $(LIBSTRING))
-$(call file, $(LIBSYSTEM))
+$(call rawfile, $(LIBEM_MES))
+$(call rawfile, $(LIBEMK))
+$(call rawfile, $(LIBEM_DATA))
+$(call rawfile, $(LIBALLOC))
+$(call rawfile, $(LIBPRINT))
+$(call rawfile, $(LIBSTRING))
+$(call rawfile, $(LIBSYSTEM))
 $(call cprogram, $(BINDIR)/em_bem)
 $(call installto, $(PLATDEP)/em_bem)
 
diff --git a/lang/cem/cemcom.ansi/build.mk b/lang/cem/cemcom.ansi/build.mk
index 0e6b45267..1f2b483ec 100644
--- a/lang/cem/cemcom.ansi/build.mk
+++ b/lang/cem/cemcom.ansi/build.mk
@@ -134,16 +134,16 @@ $(call build-cemcom-ansi-next, \
 
 $(eval $q: $(OBJDIR)/$D/Lpars.h)
 
-$(call file, $(LIBEM_MES))
-$(call file, $(LIBEMK))
-$(call file, $(LIBEM_DATA))
-$(call file, $(LIBINPUT))
-$(call file, $(LIBASSERT))
-$(call file, $(LIBALLOC))
-$(call file, $(LIBFLT_ARITH))
-$(call file, $(LIBPRINT))
-$(call file, $(LIBSYSTEM))
-$(call file, $(LIBSTRING))
+$(call rawfile, $(LIBEM_MES))
+$(call rawfile, $(LIBEMK))
+$(call rawfile, $(LIBEM_DATA))
+$(call rawfile, $(LIBINPUT))
+$(call rawfile, $(LIBASSERT))
+$(call rawfile, $(LIBALLOC))
+$(call rawfile, $(LIBFLT_ARITH))
+$(call rawfile, $(LIBPRINT))
+$(call rawfile, $(LIBSYSTEM))
+$(call rawfile, $(LIBSTRING))
 $(call cprogram, $(BINDIR)/cemcom.ansi)
 $(call installto, $(PLATDEP)/em_cemcom.ansi)
 $(eval CEMCOMANSI := $o)
diff --git a/lang/cem/cpp.ansi/build.mk b/lang/cem/cpp.ansi/build.mk
index e102c523b..be03bc958 100644
--- a/lang/cem/cpp.ansi/build.mk
+++ b/lang/cem/cpp.ansi/build.mk
@@ -71,12 +71,12 @@ define build-cpp-ansi-impl
 
 	$(call llgen, $(OBJDIR)/$D, $(OBJDIR)/$D/tokenfile.g $D/expression.g)
 
-	$(call file, $(LIBINPUT))
-	$(call file, $(LIBASSERT))
-	$(call file, $(LIBALLOC))
-	$(call file, $(LIBPRINT))
-	$(call file, $(LIBSYSTEM))
-	$(call file, $(LIBSTRING))
+	$(call rawfile, $(LIBINPUT))
+	$(call rawfile, $(LIBASSERT))
+	$(call rawfile, $(LIBALLOC))
+	$(call rawfile, $(LIBPRINT))
+	$(call rawfile, $(LIBSYSTEM))
+	$(call rawfile, $(LIBSTRING))
 
 	$(call tabgen, $D/char.tab)
 
diff --git a/lang/m2/comp/build.mk b/lang/m2/comp/build.mk
index a3be0ee7a..18ca8b7dd 100644
--- a/lang/m2/comp/build.mk
+++ b/lang/m2/comp/build.mk
@@ -108,16 +108,16 @@ $(eval $q: $(INCDIR)/em_codeEK.h)
 $(eval $q: $(INCDIR)/print.h)
 $(eval $q: $(INCDIR)/system.h)
 
-$(call file, $(LIBEM_MES))
-$(call file, $(LIBEMK))
-$(call file, $(LIBEM_DATA))
-$(call file, $(LIBINPUT))
-$(call file, $(LIBASSERT))
-$(call file, $(LIBALLOC))
-$(call file, $(LIBFLT_ARITH))
-$(call file, $(LIBPRINT))
-$(call file, $(LIBSYSTEM))
-$(call file, $(LIBSTRING))
+$(call rawfile, $(LIBEM_MES))
+$(call rawfile, $(LIBEMK))
+$(call rawfile, $(LIBEM_DATA))
+$(call rawfile, $(LIBINPUT))
+$(call rawfile, $(LIBASSERT))
+$(call rawfile, $(LIBALLOC))
+$(call rawfile, $(LIBFLT_ARITH))
+$(call rawfile, $(LIBPRINT))
+$(call rawfile, $(LIBSYSTEM))
+$(call rawfile, $(LIBSTRING))
 $(call cprogram, $(BINDIR)/em_m2)
 $(call installto, $(PLATDEP)/em_m2)
 
diff --git a/lang/m2/libm2/build.mk b/lang/m2/libm2/build.mk
index 7dadeb347..1ebc89cc3 100644
--- a/lang/m2/libm2/build.mk
+++ b/lang/m2/libm2/build.mk
@@ -95,7 +95,7 @@ $(eval g := \
 
 $(foreach f, $g, \
 	$(call reset) \
-	$(call file, lang/m2/libm2/$f) \
+	$(call rawfile, lang/m2/libm2/$f) \
 	$(call installto, $(PLATIND)/include/modula2/$f))
 
 endef
diff --git a/lang/pc/comp/build.mk b/lang/pc/comp/build.mk
index 2939c4524..c3b4dd918 100644
--- a/lang/pc/comp/build.mk
+++ b/lang/pc/comp/build.mk
@@ -111,16 +111,16 @@ $(eval $q: $(INCDIR)/em_codeEK.h)
 $(eval $q: $(INCDIR)/print.h)
 $(eval $q: $(INCDIR)/system.h)
 
-$(call file, $(LIBEM_MES))
-$(call file, $(LIBEMK))
-$(call file, $(LIBEM_DATA))
-$(call file, $(LIBINPUT))
-$(call file, $(LIBASSERT))
-$(call file, $(LIBALLOC))
-$(call file, $(LIBFLT_ARITH))
-$(call file, $(LIBPRINT))
-$(call file, $(LIBSYSTEM))
-$(call file, $(LIBSTRING))
+$(call rawfile, $(LIBEM_MES))
+$(call rawfile, $(LIBEMK))
+$(call rawfile, $(LIBEM_DATA))
+$(call rawfile, $(LIBINPUT))
+$(call rawfile, $(LIBASSERT))
+$(call rawfile, $(LIBALLOC))
+$(call rawfile, $(LIBFLT_ARITH))
+$(call rawfile, $(LIBPRINT))
+$(call rawfile, $(LIBSYSTEM))
+$(call rawfile, $(LIBSTRING))
 $(call cprogram, $(BINDIR)/em_pc)
 $(call installto, $(PLATDEP)/em_pc)
 
diff --git a/mach/proto/as/build.mk b/mach/proto/as/build.mk
index 64eaab1e9..fce5ec204 100644
--- a/mach/proto/as/build.mk
+++ b/mach/proto/as/build.mk
@@ -36,7 +36,7 @@ $(OBJDIR)/$D/preprocessed-comm2.y: mach/proto/as/comm2.y $(CPPANSI) \
 		-Ih \
 		mach/proto/as/comm2.y > $$@
 
-	$(call file, $(LIBOBJECT))
+	$(call rawfile, $(LIBOBJECT))
     $(call cprogram, $(BINDIR)/$(PLATFORM)/as)
     $(call installto, $(PLATDEP)/$(PLATFORM)/as)
 endef
diff --git a/mach/proto/as/comm0.h b/mach/proto/as/comm0.h
index 11f1231a9..4996350ac 100644
--- a/mach/proto/as/comm0.h
+++ b/mach/proto/as/comm0.h
@@ -265,3 +265,4 @@ typedef	struct sect_t	sect_t;
 #endif
 
 extern FILE *fopen();   /* some systems don't have this in stdio.h */
+
diff --git a/mach/proto/as/comm1.h b/mach/proto/as/comm1.h
index 7e4620471..6a40a2e90 100644
--- a/mach/proto/as/comm1.h
+++ b/mach/proto/as/comm1.h
@@ -116,6 +116,10 @@ extern valu_t	load();
 extern FILE	*ffcreat();
 extern FILE	*fftemp();
 
+extern void fatal(const char* s, ...);
+extern void serror(const char* s, ...);
+extern void warning(const char* s, ...);
+
 /* ========== Machine dependent C declarations ========== */
 
 #include	"mach1.c"
diff --git a/mach/proto/as/comm7.c b/mach/proto/as/comm7.c
index d0a147bdb..3c7871fbe 100644
--- a/mach/proto/as/comm7.c
+++ b/mach/proto/as/comm7.c
@@ -11,6 +11,7 @@
 #include	"comm0.h"
 #include	"comm1.h"
 #include	"y.tab.h"
+#include <stdarg.h>
 
 valu_t
 load(ip)
@@ -27,7 +28,7 @@ register item_t *ip;
 	if ((ip->i_type & S_TYP) == S_UND || (ip->i_type & S_COM)) {
 		if (pass == PASS_3) {
 			if (relonami != 0)
-				serror("relocation error");
+				serror("relocation error (relonami=%d, type=%08x)", relonami, ip->i_type);
 			relonami = ip->i_valu+1;
 		}
 		return(0);
@@ -380,13 +381,28 @@ wr_fatal()
 	fatal("write error");
 }
 
-/* VARARGS1 */
-fatal(s, a1, a2, a3, a4)
-char *s;
+void diag(const char* tail, const char* s, va_list ap)
 {
+	fflush(stdout);
+	if (modulename)
+		fprintf(stderr, "\"%s\", line %ld: ", modulename, lineno);
+	else
+		fprintf(stderr, "%s: ", progname);
+	vfprintf(stderr, s, ap);
+	fprintf(stderr, "%s", tail);
+}
+
+/* VARARGS1 */
+void fatal(const char* s, ...)
+{
+	va_list ap;
+	va_start(ap, s);
+
 	nerrors++;
-	diag(" (fatal)\n", s, a1, a2, a3, a4);
+	diag(" (fatal)\n", s, ap);
 	stop();
+
+	va_end(ap);
 }
 
 #if DEBUG == 2
@@ -400,37 +416,34 @@ char *file;
 #if DEBUG == 1
 assert1()
 {
-	diag(" (fatal)\n", "assertion failed");
+	fatal("assertion failed");
 	abort();
 }
 #endif
 
-/* VARARGS1 */
-serror(s, a1, a2, a3, a4)
-char *s;
+void serror(const char* s, ...)
 {
+	va_list ap;
+	va_start(ap, s);
+
 	nerrors++;
-	diag("\n", s, a1, a2, a3, a4);
+	diag("\n", s, ap);
+	stop();
+
+	va_end(ap);
 }
 
 /* VARARGS1 */
-warning(s, a1, a2, a3, a4)
-char *s;
+void warning(const char* s, ...)
 {
-	diag(" (warning)\n", s, a1, a2, a3, a4);
-}
+	va_list ap;
+	va_start(ap, s);
 
-/* VARARGS1 */
-diag(tail, s, a1, a2, a3, a4)
-char *tail, *s;
-{
-	fflush(stdout);
-	if (modulename)
-		fprintf(stderr, "\"%s\", line %ld: ", modulename, lineno);
-	else
-		fprintf(stderr, "%s: ", progname);
-	fprintf(stderr, s, a1, a2, a3, a4);
-	fprintf(stderr, tail);
+	nerrors++;
+	diag(" (warning)\n", s, ap);
+	stop();
+
+	va_end(ap);
 }
 
 nofit()
diff --git a/mach/proto/cg/build.mk b/mach/proto/cg/build.mk
new file mode 100644
index 000000000..2327009e0
--- /dev/null
+++ b/mach/proto/cg/build.mk
@@ -0,0 +1,46 @@
+define build-cg-impl
+
+$(call reset)
+
+$(eval cflags += -Imach/$(ARCH)/cg -I$(OBJDIR)/$D -Imach/proto/cg)
+$(eval objdir := $(ARCH))
+
+$(call cfile, mach/proto/cg/codegen.c)
+$(call cfile, mach/proto/cg/compute.c)
+$(call cfile, mach/proto/cg/equiv.c)
+$(call cfile, mach/proto/cg/fillem.c)
+$(call cfile, mach/proto/cg/gencode.c)
+$(call cfile, mach/proto/cg/glosym.c)
+$(call cfile, mach/proto/cg/main.c)
+$(call cfile, mach/proto/cg/move.c)
+$(call cfile, mach/proto/cg/nextem.c)
+$(call cfile, mach/proto/cg/reg.c)
+$(call cfile, mach/proto/cg/regvar.c)
+$(call cfile, mach/proto/cg/salloc.c)
+$(call cfile, mach/proto/cg/state.c)
+$(call cfile, mach/proto/cg/subr.c)
+$(call cfile, mach/proto/cg/var.c)
+
+$(eval $q: $(OBJDIR)/$D/tables.h)
+$(eval CLEANABLES += $(OBJDIR)/$D/tables.h $(OBJDIR)/$D/tables.c)
+$(OBJDIR)/$D/tables.c: $(OBJDIR)/$D/tables.h
+$(OBJDIR)/$D/tables.h: $(CGG) $(CPPANSI) mach/$(ARCH)/cg/table
+	@echo CGG $$@
+	@mkdir -p $$(dir $$@)
+	$(hide) cd $$(dir $$@) && \
+		$(abspath $(CPPANSI)) -I$(abspath mach/$(ARCH)/cg) $(abspath mach/$(ARCH)/cg/table) | $(abspath $(CGG))
+
+$(call cfile, $(OBJDIR)/$D/tables.c)
+
+$(eval $q: $(INCDIR)/flt_arith.h)
+
+$(call rawfile, $(LIBEM_DATA))
+$(call rawfile, $(LIBFLT_ARITH))
+
+$(call cprogram, $(BINDIR)/$(PLATFORM)/cg)
+$(call installto, $(PLATDEP)/$(PLATFORM)/cg)
+
+endef
+
+build-cg = $(eval $(build-cg-impl))
+
diff --git a/mach/proto/ncg/build.mk b/mach/proto/ncg/build.mk
index 1bbda2b49..0056452c1 100644
--- a/mach/proto/ncg/build.mk
+++ b/mach/proto/ncg/build.mk
@@ -36,8 +36,8 @@ $(call cfile, $(OBJDIR)/$D/tables.c)
 
 $(eval $q: $(INCDIR)/flt_arith.h)
 
-$(call file, $(LIBEM_DATA))
-$(call file, $(LIBFLT_ARITH))
+$(call rawfile, $(LIBEM_DATA))
+$(call rawfile, $(LIBFLT_ARITH))
 
 $(call cprogram, $(BINDIR)/$(PLATFORM)/ncg)
 $(call installto, $(PLATDEP)/$(PLATFORM)/ncg)
diff --git a/plat/build.mk b/plat/build.mk
index aff84c04c..623658b07 100644
--- a/plat/build.mk
+++ b/plat/build.mk
@@ -17,7 +17,7 @@ define build-platform-impl
 			$(PLATIND)/descr/$(PLATFORM) \
 			$(PLATFORM_HEADERS_$(PLATFORM)) \
 			$(PLATDEP)/$(PLATFORM)/as \
-			$(PLATDEP)/$(PLATFORM)/ncg \
+			$(if $(arch-cg-$(ARCH)), $(PLATDEP)/$(PLATFORM)/cg, $(PLATDEP)/$(PLATFORM)/ncg) \
 			$(ARCHITECTURE_$(ARCH)))
 
 	# libsys
@@ -48,7 +48,7 @@ define build-platform-impl
     # The tools themselves
 
     $(call build-as)
-    $(call build-ncg)
+    $(if $(arch-cg-$(ARCH)), $(call build-cg), $(call build-ncg))
 
 	# Build top only if the architecture asks for it.
 
diff --git a/util/amisc/build.mk b/util/amisc/build.mk
index 03f44b5e9..286b8f305 100644
--- a/util/amisc/build.mk
+++ b/util/amisc/build.mk
@@ -2,7 +2,7 @@
 define build-simple-tool-impl
 	$(call reset)
 	$(call cfile, util/amisc/$1.c)
-	$(call file, $(LIBOBJECT))
+	$(call rawfile, $(LIBOBJECT))
 	$(call cprogram, $(BINDIR)/$1)
 	$(eval INSTALLABLES += $o)
 	$(call installto, $(INSDIR)/bin/$1)
diff --git a/util/arch/build.mk b/util/arch/build.mk
index 4d283f881..11851f5c9 100644
--- a/util/arch/build.mk
+++ b/util/arch/build.mk
@@ -6,10 +6,10 @@ define build-aal-impl
 
 	$(call cfile, $D/archiver.c)
 
-	$(call file, $(LIBOBJECT))
-	$(call file, $(LIBPRINT))
-	$(call file, $(LIBSTRING))
-	$(call file, $(LIBSYSTEM))
+	$(call rawfile, $(LIBOBJECT))
+	$(call rawfile, $(LIBPRINT))
+	$(call rawfile, $(LIBSTRING))
+	$(call rawfile, $(LIBSYSTEM))
 
 	$(call cprogram, $(BINDIR)/aal)
 	$(call installto, $(INSDIR)/bin/aal)
diff --git a/util/cgg/build.mk b/util/cgg/build.mk
new file mode 100644
index 000000000..4fc8532b2
--- /dev/null
+++ b/util/cgg/build.mk
@@ -0,0 +1,25 @@
+D := util/cgg
+
+define build-cgg-impl
+
+$(call reset)
+$(eval cflags += -I$D)
+
+$(call yacc, $(OBJDIR)/$D, $D/bootgram.y)
+
+$(call flex, $(OBJDIR)/$D, $D/bootlex.l)
+$(call dependson, $(OBJDIR)/$D/y.tab.h)
+
+$(call cfile, $D/main.c)
+
+$(eval $q: $(INCDIR)/em_spec.h)
+
+$(call rawfile, $(LIBEM_DATA))
+$(call rawfile, $(LIBASSERT))
+$(call rawfile, $(LIBSYSTEM))
+$(call cprogram, $(BINDIR)/cgg)
+$(eval CGG := $o)
+
+endef
+
+$(eval $(build-cgg-impl))
diff --git a/util/cgg/main.c b/util/cgg/main.c
index fba8e31b5..86375b776 100644
--- a/util/cgg/main.c
+++ b/util/cgg/main.c
@@ -1009,3 +1009,8 @@ max(a,b) {
 		return(a);
 	return(b);
 }
+
+int yywrap(void) {
+	return 1;
+}
+
diff --git a/util/data/build.mk b/util/data/build.mk
index 424712956..b6b5c7cea 100644
--- a/util/data/build.mk
+++ b/util/data/build.mk
@@ -3,12 +3,13 @@ D := util/data
 define util-data-impl
 
 $(eval g := \
+	$(OBJDIR)/$D/em_flag.c \
+	$(OBJDIR)/$D/em_pseu.c \
+	$(OBJDIR)/$D/em_mnem.c \
 	$(INCDIR)/em_spec.h \
 	$(INCDIR)/em_pseu.h \
 	$(INCDIR)/em_mnem.h \
-	$(OBJDIR)/$D/em_flag.c \
-	$(OBJDIR)/$D/em_pseu.c \
-	$(OBJDIR)/$D/em_mnem.c)
+)
 
 $(eval CLEANABLES += $g)
 $(wordlist 2, $(words $g), $g): $(firstword $g)
diff --git a/util/ego/build.mk b/util/ego/build.mk
index ee1e7f865..2fba61ff3 100644
--- a/util/ego/build.mk
+++ b/util/ego/build.mk
@@ -6,8 +6,8 @@ $(call reset)
 $(eval cflags += -DVERBOSE -DNOTCOMPACT)
 $(eval cflags += -I$D/share -I$(OBJDIR)/$D)
 $(foreach f, $2, $(call cfile, $f))
-$(call file, $(LIBDIR)/libegocore.a)
-$(call file, $(LIBEM_DATA))
+$(call rawfile, $(LIBDIR)/libegocore.a)
+$(call rawfile, $(LIBEM_DATA))
 $(call cprogram, $(BINDIR)/ego/$(strip $1))
 $(call installto, $(PLATDEP)/ego/$(strip $1))
 $(eval EGO_MODULES += $q)
@@ -166,9 +166,9 @@ $(call cfile, $D/em_ego/em_ego.c)
 $(eval $q: $(INCDIR)/print.h $(INCDIR)/system.h)
 $(eval $q: $(INCDIR)/em_path.h)
 
-$(call file, $(LIBPRINT))
-$(call file, $(LIBSTRING))
-$(call file, $(LIBSYSTEM))
+$(call rawfile, $(LIBPRINT))
+$(call rawfile, $(LIBSTRING))
+$(call rawfile, $(LIBSYSTEM))
 
 $(call cprogram, $(BINDIR)/em_ego)
 $(call installto, $(PLATDEP)/em_ego)
diff --git a/util/led/build.mk b/util/led/build.mk
index d96dd35c6..419948a13 100644
--- a/util/led/build.mk
+++ b/util/led/build.mk
@@ -16,8 +16,8 @@ define build-led-impl
 	$(call cfile, $D/sym.c)
 	$(call cfile, $D/write.c)
 
-	$(call file, $(LIBSTRING))
-	$(call file, $(LIBOBJECT))
+	$(call rawfile, $(LIBSTRING))
+	$(call rawfile, $(LIBOBJECT))
 
 	$(call cprogram, $(BINDIR)/em_led)
 	$(call installto, $(PLATDEP)/em_led)
diff --git a/util/misc/build.mk b/util/misc/build.mk
index dfa8ac7c1..95b6fb2d9 100644
--- a/util/misc/build.mk
+++ b/util/misc/build.mk
@@ -14,13 +14,13 @@ define build-misc-impl
 	$(eval objdir := encode)
 	$(call cfile, $D/convert.c)
 	$(eval $q: $(INCDIR)/em_comp.h $(INCDIR)/em_codeEK.h)
-	$(call file, $(LIBREAD_EMEV))
-	$(call file, $(LIBEMK))
-	$(call file, $(LIBEM_DATA))
-	$(call file, $(LIBALLOC))
-	$(call file, $(LIBPRINT))
-	$(call file, $(LIBSTRING))
-	$(call file, $(LIBSYSTEM))
+	$(call rawfile, $(LIBREAD_EMEV))
+	$(call rawfile, $(LIBEMK))
+	$(call rawfile, $(LIBEM_DATA))
+	$(call rawfile, $(LIBALLOC))
+	$(call rawfile, $(LIBPRINT))
+	$(call rawfile, $(LIBSTRING))
+	$(call rawfile, $(LIBSYSTEM))
 	$(call cprogram, $(BINDIR)/em_encode)
 	$(call installto, $(PLATDEP)/em_encode)
 	$(eval EM_ENCODE := $o)
@@ -30,13 +30,13 @@ define build-misc-impl
 	$(eval objdir := decode)
 	$(call cfile, $D/convert.c)
 	$(eval $q: $(INCDIR)/em_comp.h $(INCDIR)/em_codeEK.h)
-	$(call file, $(LIBREAD_EMKV))
-	$(call file, $(LIBEME))
-	$(call file, $(LIBEM_DATA))
-	$(call file, $(LIBALLOC))
-	$(call file, $(LIBPRINT))
-	$(call file, $(LIBSTRING))
-	$(call file, $(LIBSYSTEM))
+	$(call rawfile, $(LIBREAD_EMKV))
+	$(call rawfile, $(LIBEME))
+	$(call rawfile, $(LIBEM_DATA))
+	$(call rawfile, $(LIBALLOC))
+	$(call rawfile, $(LIBPRINT))
+	$(call rawfile, $(LIBSTRING))
+	$(call rawfile, $(LIBSYSTEM))
 	$(call cprogram, $(BINDIR)/em_decode)
 	$(call installto, $(PLATDEP)/em_decode)
 	$(eval EM_DECODE := $o)
diff --git a/util/ncgg/build.mk b/util/ncgg/build.mk
index aaa81769f..9c3eef3da 100644
--- a/util/ncgg/build.mk
+++ b/util/ncgg/build.mk
@@ -34,7 +34,7 @@ $(call cfile, $(OBJDIR)/$D/enterkeyw.c)
 
 $(eval $q: $(INCDIR)/em_spec.h)
 
-$(call file, $(LIBEM_DATA))
+$(call rawfile, $(LIBEM_DATA))
 $(call cprogram, $(BINDIR)/ncgg)
 $(eval NCGG := $o)
 
diff --git a/util/opt/build.mk b/util/opt/build.mk
index 39eafe355..a4e62ced7 100644
--- a/util/opt/build.mk
+++ b/util/opt/build.mk
@@ -10,12 +10,14 @@ $(call yacc, $(OBJDIR)/$D, $D/mktab.y)
 $(call flex, $(OBJDIR)/$D, $D/scan.l)
 $(call dependson, $(OBJDIR)/$D/y.tab.h)
 
-$(call file, $(LIBEM_DATA))
-$(call file, -lfl)
+$(call rawfile, $(LIBEM_DATA))
 $(call cprogram, $(OBJDIR)/$D/mktab)
 
 endef
 
+.PHONY: -lfl
+-lfl:
+
 define build-opt-impl
 
 $(call reset)
@@ -53,12 +55,12 @@ $g: $(OBJDIR)/$D/mktab $D/patterns $(BINDIR)/cpp.ansi
 	$(hide) $(BINDIR)/cpp.ansi < $D/patterns | $(OBJDIR)/$D/mktab > $$@
 $(call cfile, $g)
 
-$(call file, $(LIBEM_DATA))
-$(call file, $(LIBASSERT))
-$(call file, $(LIBPRINT))
-$(call file, $(LIBALLOC))
-$(call file, $(LIBSYSTEM))
-$(call file, $(LIBSTRING))
+$(call rawfile, $(LIBEM_DATA))
+$(call rawfile, $(LIBASSERT))
+$(call rawfile, $(LIBPRINT))
+$(call rawfile, $(LIBALLOC))
+$(call rawfile, $(LIBSYSTEM))
+$(call rawfile, $(LIBSTRING))
 
 $(eval $q: $(INCDIR)/em_spec.h)
 
@@ -79,4 +81,4 @@ endef
 $(eval $(build-opt-mktab-impl))
 $(eval $(call build-opt-impl, em_opt,))
 $(eval $(call build-opt-impl, em_opt2, -DGLOBAL_OPT))
-$(eval $(build-opt-manpage-impl))
\ No newline at end of file
+$(eval $(build-opt-manpage-impl))
diff --git a/util/opt/mktab.y b/util/opt/mktab.y
index 08beaeccc..e2a6c0b1a 100644
--- a/util/opt/mktab.y
+++ b/util/opt/mktab.y
@@ -294,6 +294,10 @@ main() {
 	return nerrors;
 }
 
+int yywrap(void) {
+	return 1;
+}
+
 yyerror(s) char *s; {
 
 	fprintf(stderr,"line %d: %s\n",lino,s);
diff --git a/util/topgen/build.mk b/util/topgen/build.mk
index 4ef15c278..9bf48a4d3 100644
--- a/util/topgen/build.mk
+++ b/util/topgen/build.mk
@@ -15,11 +15,11 @@ define build-topgen-impl
 
 	$(call llgen, $(OBJDIR)/$D, $D/topgen.g)
 
-	$(call file, $(LIBASSERT))
-	$(call file, $(LIBPRINT))
-	$(call file, $(LIBALLOC))
-	$(call file, $(LIBSYSTEM))
-	$(call file, $(LIBSTRING))
+	$(call rawfile, $(LIBASSERT))
+	$(call rawfile, $(LIBPRINT))
+	$(call rawfile, $(LIBALLOC))
+	$(call rawfile, $(LIBSYSTEM))
+	$(call rawfile, $(LIBSTRING))
 
 	$(call cprogram, $(BINDIR)/topgen)
 	TOPGEN := $o