diff --git a/configure/os/CONFIG.Common.linux-386 b/configure/os/CONFIG.Common.linux-386
index 262f83457..063066f4d 100644
--- a/configure/os/CONFIG.Common.linux-386
+++ b/configure/os/CONFIG.Common.linux-386
@@ -10,11 +10,10 @@
 # Include definitions common to all linux x86 targets
 include $(CONFIG)/os/CONFIG.Common.linux-x86
 
-VALID_BUILDS = Ioc
-
 ARCH_DEP_CFLAGS = -march=i386
 
 ifeq ($(BUILD_CLASS),CROSS)
+   VALID_BUILDS = Ioc
    GNU_TARGET=i386-pc-linux-gnu
 endif
 
diff --git a/configure/os/CONFIG.Common.linux-486 b/configure/os/CONFIG.Common.linux-486
index 0cbd130f4..d3448419c 100644
--- a/configure/os/CONFIG.Common.linux-486
+++ b/configure/os/CONFIG.Common.linux-486
@@ -10,11 +10,10 @@
 # Include definitions common to all linux x86 targets
 include $(CONFIG)/os/CONFIG.Common.linux-x86
 
-VALID_BUILDS = Ioc
-
 ARCH_DEP_CFLAGS = -march=i486
 
 ifeq ($(BUILD_CLASS),CROSS)
+   VALID_BUILDS = Ioc
    GNU_TARGET=i486-pc-linux-gnu
 endif
 
diff --git a/configure/os/CONFIG.Common.linux-586 b/configure/os/CONFIG.Common.linux-586
index b94ebf458..3728f4555 100644
--- a/configure/os/CONFIG.Common.linux-586
+++ b/configure/os/CONFIG.Common.linux-586
@@ -10,12 +10,11 @@
 # Include definitions common to all linux x86 targets
 include $(CONFIG)/os/CONFIG.Common.linux-x86
 
-VALID_BUILDS = Ioc
-
 # i586 is euivalent to pentiumpro
 ARCH_DEP_CFLAGS = -march=i586
 
 ifeq ($(BUILD_CLASS),CROSS)
+   VALID_BUILDS = Ioc
    GNU_TARGET=i586-pc-linux-gnu
 endif
 
diff --git a/configure/os/CONFIG.Common.linux-686 b/configure/os/CONFIG.Common.linux-686
index 1b17a64e3..758a1168b 100644
--- a/configure/os/CONFIG.Common.linux-686
+++ b/configure/os/CONFIG.Common.linux-686
@@ -10,12 +10,11 @@
 # Include definitions common to all linux x86 targets
 include $(CONFIG)/os/CONFIG.Common.linux-x86
 
-VALID_BUILDS = Ioc
-
 # i686 is euivalent to pentiumpro
 ARCH_DEP_CFLAGS = -march=i686
 
 ifeq ($(BUILD_CLASS),CROSS)
+   VALID_BUILDS = Ioc
    GNU_TARGET=i686-pc-linux-gnu
 endif
 
diff --git a/configure/os/CONFIG.Common.linux-arm b/configure/os/CONFIG.Common.linux-arm
index 35e71ddc3..31dae0b5e 100644
--- a/configure/os/CONFIG.Common.linux-arm
+++ b/configure/os/CONFIG.Common.linux-arm
@@ -9,14 +9,13 @@
 # Include definitions common to all Linux targets
 include $(CONFIG)/os/CONFIG.Common.linuxCommon
 
-VALID_BUILDS = Ioc
-
 ARCH_CLASS = arm
 
 # Set a special definition for network order of Netwinder ARM floating point
 ARCH_DEP_CPPFLAGS += -D_ARM_NWFP_
 
 ifeq ($(BUILD_CLASS),CROSS)
+    VALID_BUILDS = Ioc
     GNU_TARGET = arm-linux
 
     # prefix of compiler tools
diff --git a/configure/os/CONFIG.Common.linux-athlon b/configure/os/CONFIG.Common.linux-athlon
index 6c01433f8..46a4ca953 100644
--- a/configure/os/CONFIG.Common.linux-athlon
+++ b/configure/os/CONFIG.Common.linux-athlon
@@ -14,6 +14,7 @@ ARCH_DEP_CFLAGS += -march=athlon-mp -mfpmath=sse
 
 
 ifeq ($(BUILD_CLASS),CROSS)
+   VALID_BUILDS = Ioc
    GNU_TARGET=athlon-pc-linux-gnu
 endif