diff --git a/configure/os/CONFIG.Linux.windows-x64 b/configure/os/CONFIG.Linux.windows-x64
index 62eadf653..3e01611e4 100644
--- a/configure/os/CONFIG.Linux.windows-x64
+++ b/configure/os/CONFIG.Linux.windows-x64
@@ -1,4 +1,6 @@
 include $(CONFIG)/os/CONFIG.windows-x64.windows-x64
 
+VALID_BUILDS = Ioc Command
+
 PATH := /opt/wine-msvc-2017/bin/x64:$(PATH)
 export WINEPREFIX = $(HOME)/.wine-$(EPICS_HOST_ARCH)
diff --git a/configure/os/CONFIG_SITE.Common.linuxCommon b/configure/os/CONFIG_SITE.Common.linuxCommon
index f77bbaf48..1932ae7e6 100644
--- a/configure/os/CONFIG_SITE.Common.linuxCommon
+++ b/configure/os/CONFIG_SITE.Common.linuxCommon
@@ -12,3 +12,7 @@ COMMANDLINE_LIBRARY = READLINE
 CODE_CPPFLAGS += -fno-strict-aliasing
 USR_CXXFLAGS += $(STD_CXXFLAGS)
 STD_CXXFLAGS = -std=c++11
+
+ifeq ($(filter SL% RHEL%,$(T_A)),)
+VALID_BUILDS = Ioc Command
+endif