diff --git a/configure/os/CONFIG_SITE.linux-x86.Common b/configure/os/CONFIG_SITE.linux-x86.Common
index 1f4980a27..46876ff84 100644
--- a/configure/os/CONFIG_SITE.linux-x86.Common
+++ b/configure/os/CONFIG_SITE.linux-x86.Common
@@ -14,18 +14,14 @@ GNU_HOST_OS=linux
 # LD_LIBRARY_PATH may cause problems for eldk53-ppc4xxFP
 LD_LIBRARY_PATH=
 
-# vxWorks 5.5 for MVxxxx boards
-CROSS_COMPILER_TARGET_ARCHS += T2-ppc604
-
-# vxWorks 6.7 for MVxxxx boards
+# vxWorks for MVxxxx boards
+#CROSS_COMPILER_TARGET_ARCHS += T2-ppc604
 #CROSS_COMPILER_TARGET_ARCHS += V67-ppc604
-
-# vxWorks 6.9 for MVxxxx boards
 CROSS_COMPILER_TARGET_ARCHS += V69-ppc604
 #CROSS_COMPILER_TARGET_ARCHS += V69-ppc32
 
 # NI compact RIO
-CROSS_COMPILER_TARGET_ARCHS += V63-ppc603
+#CROSS_COMPILER_TARGET_ARCHS += V63-ppc603
 
 # MOXA montavista linux (No PVA because of missing boost support)
 CROSS_COMPILER_TARGET_ARCHS += mvl40-xscale_be
@@ -41,7 +37,7 @@ CROSS_COMPILER_TARGET_ARCHS += eldk52-e500v2
 
 # DeltaTau PowerPMAC
 CROSS_COMPILER_TARGET_ARCHS += eldk42-ppc4xxFP
-CROSS_COMPILER_TARGET_ARCHS += eldk53-ppc4xxFP
+#CROSS_COMPILER_TARGET_ARCHS += eldk53-ppc4xxFP
 
 # Test other vxWorks versions
 #CROSS_COMPILER_TARGET_ARCHS += V66-ppc603
diff --git a/configure/os/CONFIG_SITE.linux-x86_64.Common b/configure/os/CONFIG_SITE.linux-x86_64.Common
index d06df5dcf..f657de1f1 100644
--- a/configure/os/CONFIG_SITE.linux-x86_64.Common
+++ b/configure/os/CONFIG_SITE.linux-x86_64.Common
@@ -15,14 +15,14 @@ GNU_HOST_ARCH_64=x86_64
 CROSS_COMPILER_TARGET_ARCHS += windows-x64
 
 # IOxOS IFC1211
-CROSS_COMPILER_TARGET_ARCHS += fslqoriq20-e6500_64
+#CROSS_COMPILER_TARGET_ARCHS += fslqoriq20-e6500_64
 
 # Zynq
-CROSS_COMPILER_TARGET_ARCHS += yocto21-aarch64
+#CROSS_COMPILER_TARGET_ARCHS += yocto21-aarch64
 CROSS_COMPILER_TARGET_ARCHS += yocto40-aarch64
 
 # Debian 10
 CROSS_COMPILER_TARGET_ARCHS += deb10-x86_64
 
 # Newer DeltaTau PowerPMAC
-CROSS_COMPILER_TARGET_ARCHS += gcc8-ppc4xxFP
+#CROSS_COMPILER_TARGET_ARCHS += gcc8-ppc4xxFP