diff --git a/mach/6500/mach_params b/mach/6500/mach_params
index ab65c97e..c84c9b46 100644
--- a/mach/6500/mach_params
+++ b/mach/6500/mach_params
@@ -2,3 +2,4 @@ MACH=6500
 SUF=s
 ASAR=arch
 RANLIB=:
+MACHFL=-O -DUFS
diff --git a/mach/arm/mach_params b/mach/arm/mach_params
index 2f1539d1..e50b2830 100644
--- a/mach/arm/mach_params
+++ b/mach/arm/mach_params
@@ -2,3 +2,4 @@ MACH=arm
 SUF=s
 ASAR=arch
 RANLIB=:
+MACHFL=-O -DUFS
diff --git a/mach/em22/mach_params b/mach/em22/mach_params
index f2b16b3d..43e0a93a 100644
--- a/mach/em22/mach_params
+++ b/mach/em22/mach_params
@@ -2,3 +2,4 @@ MACH=em22
 SUF=m
 ASAR=arch
 RANLIB=:
+MACHFL=-O -DUFS
diff --git a/mach/em24/mach_params b/mach/em24/mach_params
index f109d02b..fb764249 100644
--- a/mach/em24/mach_params
+++ b/mach/em24/mach_params
@@ -2,3 +2,4 @@ MACH=em24
 SUF=m
 ASAR=arch
 RANLIB=:
+MACHFL=-O -DUFS
diff --git a/mach/em44/mach_params b/mach/em44/mach_params
index 43b803c8..9926e889 100644
--- a/mach/em44/mach_params
+++ b/mach/em44/mach_params
@@ -2,3 +2,4 @@ MACH=em44
 SUF=m
 ASAR=arch
 RANLIB=:
+MACHFL=-O -DUFS
diff --git a/mach/i386/mach_params b/mach/i386/mach_params
index 72100647..7a0ca349 100644
--- a/mach/i386/mach_params
+++ b/mach/i386/mach_params
@@ -2,3 +2,4 @@ MACH=i386
 SUF=o
 ASAR=aal
 RANLIB=:
+MACHFL=-O -DUFS
diff --git a/mach/i80/mach_params b/mach/i80/mach_params
index 90a6d101..cc133ca1 100644
--- a/mach/i80/mach_params
+++ b/mach/i80/mach_params
@@ -2,3 +2,4 @@ MACH=i80
 SUF=o
 ASAR=aal
 RANLIB=:
+MACHFL=-O -DUFS
diff --git a/mach/i86/mach_params b/mach/i86/mach_params
index 7bda99b8..7dfe60e1 100644
--- a/mach/i86/mach_params
+++ b/mach/i86/mach_params
@@ -2,3 +2,4 @@ MACH=i86
 SUF=o
 ASAR=aal
 RANLIB=:
+MACHFL=-O -DUFS
diff --git a/mach/m68020/mach_params b/mach/m68020/mach_params
index 81999096..38239d36 100644
--- a/mach/m68020/mach_params
+++ b/mach/m68020/mach_params
@@ -2,3 +2,4 @@ MACH=m68020
 SUF=o
 ASAR=aal
 RANLIB=:
+MACHFL=-O -DUFS
diff --git a/mach/m68k2/mach_params b/mach/m68k2/mach_params
index 118872a3..01797ef3 100644
--- a/mach/m68k2/mach_params
+++ b/mach/m68k2/mach_params
@@ -2,3 +2,4 @@ MACH=m68k2
 SUF=o
 ASAR=aal
 RANLIB=:
+MACHFL=-O -DUFS
diff --git a/mach/m68k4/mach_params b/mach/m68k4/mach_params
index b16c313d..9d6da1f4 100644
--- a/mach/m68k4/mach_params
+++ b/mach/m68k4/mach_params
@@ -2,3 +2,4 @@ MACH=m68k4
 SUF=o
 ASAR=aal
 RANLIB=:
+MACHFL=-O -DUFS
diff --git a/mach/mantra/mach_params b/mach/mantra/mach_params
index e609dec0..046b0d6c 100644
--- a/mach/mantra/mach_params
+++ b/mach/mantra/mach_params
@@ -2,3 +2,4 @@ MACH=mantra
 SUF=o
 ASAR=aal
 RANLIB=:
+MACHFL=-O -DUFS
diff --git a/mach/minix/mach_params b/mach/minix/mach_params
index 4d6c8568..aac52002 100644
--- a/mach/minix/mach_params
+++ b/mach/minix/mach_params
@@ -2,3 +2,4 @@ MACH=minix
 SUF=o
 ASAR=aal
 RANLIB=:
+MACHFL=-O -DUFS
diff --git a/mach/minixST/mach_params b/mach/minixST/mach_params
index 21c0a41b..510279d2 100644
--- a/mach/minixST/mach_params
+++ b/mach/minixST/mach_params
@@ -2,3 +2,4 @@ MACH=minixST
 SUF=o
 ASAR=aal
 RANLIB=:
+MACHFL=-O -DUFS
diff --git a/mach/ns/mach_params b/mach/ns/mach_params
index 04035380..b1762151 100644
--- a/mach/ns/mach_params
+++ b/mach/ns/mach_params
@@ -2,3 +2,4 @@ MACH=ns
 SUF=o
 ASAR=aal
 RANLIB=:
+MACHFL=-O -DUFS
diff --git a/mach/pdp/mach_params b/mach/pdp/mach_params
index b946eafc..554a8332 100644
--- a/mach/pdp/mach_params
+++ b/mach/pdp/mach_params
@@ -2,3 +2,4 @@ MACH=pdp
 SUF=o
 ASAR=aal
 RANLIB=:
+MACHFL=-O -DUFS
diff --git a/mach/pmds/mach_params b/mach/pmds/mach_params
index c17efa88..85bf1deb 100644
--- a/mach/pmds/mach_params
+++ b/mach/pmds/mach_params
@@ -2,3 +2,4 @@ MACH=pmds
 SUF=o
 ASAR=aal
 RANLIB=:
+MACHFL=-O -DUFS
diff --git a/mach/pmds4/mach_params b/mach/pmds4/mach_params
index b771f20e..b7a4b658 100644
--- a/mach/pmds4/mach_params
+++ b/mach/pmds4/mach_params
@@ -2,3 +2,4 @@ MACH=pmds4
 SUF=o
 ASAR=aal
 RANLIB=:
+MACHFL=-O -DUFS
diff --git a/mach/sun2/mach_params b/mach/sun2/mach_params
index a66b9e01..0e85972c 100644
--- a/mach/sun2/mach_params
+++ b/mach/sun2/mach_params
@@ -2,3 +2,4 @@ MACH=sun2
 SUF=o
 ASAR=aal
 RANLIB=:
+MACHFL=-O -DNFS
diff --git a/mach/sun3/mach_params b/mach/sun3/mach_params
index 10f59299..d7400670 100644
--- a/mach/sun3/mach_params
+++ b/mach/sun3/mach_params
@@ -2,4 +2,4 @@ MACH=sun3
 SUF=o
 ASAR=aal
 RANLIB=:
-MACHFL=-DNFS
+MACHFL=-O -DNFS
diff --git a/mach/vax4/mach_params b/mach/vax4/mach_params
index 9daa8108..989b00e4 100644
--- a/mach/vax4/mach_params
+++ b/mach/vax4/mach_params
@@ -2,3 +2,4 @@ MACH=vax4
 SUF=o
 ASAR=aal
 RANLIB=:
+MACHFL=-O -DBFS
diff --git a/mach/xenix3/mach_params b/mach/xenix3/mach_params
index faccbd7d..ef021f7a 100644
--- a/mach/xenix3/mach_params
+++ b/mach/xenix3/mach_params
@@ -2,3 +2,4 @@ MACH=xenix3
 SUF=o
 ASAR=aal
 RANLIB=:
+MACHFL=-O -DUFS
diff --git a/mach/z80/mach_params b/mach/z80/mach_params
index 4780ef6b..7ef7b747 100644
--- a/mach/z80/mach_params
+++ b/mach/z80/mach_params
@@ -2,3 +2,4 @@ MACH=z80
 SUF=o
 ASAR=aal
 RANLIB=:
+MACHFL=-O -DUFS
diff --git a/mach/z8000/mach_params b/mach/z8000/mach_params
index 70e04ad5..59a7d1a1 100644
--- a/mach/z8000/mach_params
+++ b/mach/z8000/mach_params
@@ -2,3 +2,4 @@ MACH=z8000
 SUF=s
 ASAR=arch
 RANLIB=:
+MACHFL=-O -DUFS