diff --git a/configure/os/CONFIG.Common.SL5-x86 b/configure/os/CONFIG.Common.SL5-x86
index ff571bf5f..c08cb734c 100644
--- a/configure/os/CONFIG.Common.SL5-x86
+++ b/configure/os/CONFIG.Common.SL5-x86
@@ -1,3 +1,5 @@
 # Include definitions common to linux pentium targets
 include $(CONFIG)/os/CONFIG.Common.linux-686
 COMMANDLINE_LIBRARY = READLINE_NCURSES
+
+HOST_OPT=NO
diff --git a/configure/os/CONFIG.Common.SL5-x86_64 b/configure/os/CONFIG.Common.SL5-x86_64
index 46a40f608..01a6cfd2d 100644
--- a/configure/os/CONFIG.Common.SL5-x86_64
+++ b/configure/os/CONFIG.Common.SL5-x86_64
@@ -1,3 +1,5 @@
 # Include definitions common to linux pentium targets
 include $(CONFIG)/os/CONFIG.Common.linux-x86_64
 COMMANDLINE_LIBRARY = READLINE_NCURSES
+
+HOST_OPT=NO