diff --git a/mach/m68020/ncg/mach.c b/mach/m68020/ncg/mach.c
index 1a07ecd90..a861269c0 100644
--- a/mach/m68020/ncg/mach.c
+++ b/mach/m68020/ncg/mach.c
@@ -40,7 +40,8 @@ con_mult(sz) word sz; {
 	fprintf(codefile,".data4 %s\n",str);
 }
 
-#define IEEEFLOAT 1
+#define IEEEFLOAT
+#define CODE_GENERATOR
 #include <con_float>
 
 regscore(off,size,typ,score,totyp)
diff --git a/mach/m68k2/ncg/mach.c b/mach/m68k2/ncg/mach.c
index 1a07ecd90..a861269c0 100644
--- a/mach/m68k2/ncg/mach.c
+++ b/mach/m68k2/ncg/mach.c
@@ -40,7 +40,8 @@ con_mult(sz) word sz; {
 	fprintf(codefile,".data4 %s\n",str);
 }
 
-#define IEEEFLOAT 1
+#define IEEEFLOAT
+#define CODE_GENERATOR
 #include <con_float>
 
 regscore(off,size,typ,score,totyp)
diff --git a/mach/m68k4/ncg/mach.c b/mach/m68k4/ncg/mach.c
index 1a07ecd90..a861269c0 100644
--- a/mach/m68k4/ncg/mach.c
+++ b/mach/m68k4/ncg/mach.c
@@ -40,7 +40,8 @@ con_mult(sz) word sz; {
 	fprintf(codefile,".data4 %s\n",str);
 }
 
-#define IEEEFLOAT 1
+#define IEEEFLOAT
+#define CODE_GENERATOR
 #include <con_float>
 
 regscore(off,size,typ,score,totyp)
diff --git a/mach/moon3/ncg/mach.c b/mach/moon3/ncg/mach.c
index 1a07ecd90..a861269c0 100644
--- a/mach/moon3/ncg/mach.c
+++ b/mach/moon3/ncg/mach.c
@@ -40,7 +40,8 @@ con_mult(sz) word sz; {
 	fprintf(codefile,".data4 %s\n",str);
 }
 
-#define IEEEFLOAT 1
+#define IEEEFLOAT
+#define CODE_GENERATOR
 #include <con_float>
 
 regscore(off,size,typ,score,totyp)