diff --git a/configure/os/CONFIG.Common.SL5-x86 b/configure/os/CONFIG.Common.SL5-x86
index c08cb734c..03018504e 100644
--- a/configure/os/CONFIG.Common.SL5-x86
+++ b/configure/os/CONFIG.Common.SL5-x86
@@ -1,5 +1,8 @@
 # Include definitions common to linux pentium targets
-include $(CONFIG)/os/CONFIG.Common.linux-686
+include $(CONFIG)/os/CONFIG.Common.linux-x86
 COMMANDLINE_LIBRARY = READLINE_NCURSES
 
-HOST_OPT=NO
+OPT_CFLAGS += -g
+OPT_CXXFLAGS += -g
+
+ARCH_DEP_CFLAGS += -march=i686
diff --git a/configure/os/CONFIG.Common.SL5-x86_64 b/configure/os/CONFIG.Common.SL5-x86_64
index 01a6cfd2d..bb3788e28 100644
--- a/configure/os/CONFIG.Common.SL5-x86_64
+++ b/configure/os/CONFIG.Common.SL5-x86_64
@@ -2,4 +2,5 @@
 include $(CONFIG)/os/CONFIG.Common.linux-x86_64
 COMMANDLINE_LIBRARY = READLINE_NCURSES
 
-HOST_OPT=NO
+OPT_CFLAGS += -g
+OPT_CXXFLAGS += -g
diff --git a/configure/os/CONFIG.Common.SL6-x86 b/configure/os/CONFIG.Common.SL6-x86
index 64fd8ffbb..16ac429fd 100644
--- a/configure/os/CONFIG.Common.SL6-x86
+++ b/configure/os/CONFIG.Common.SL6-x86
@@ -1,6 +1,7 @@
 # Include definitions common to linux pentium targets
 include $(CONFIG)/os/CONFIG.Common.linux-x86
-COMMANDLINE_LIBRARY = READLINE
-ARCH_DEP_CFLAGS += -march=i686
 
-HOST_OPT=NO
+OPT_CFLAGS += -g
+OPT_CXXFLAGS += -g
+
+ARCH_DEP_CFLAGS += -march=i686
diff --git a/configure/os/CONFIG.Common.SL6-x86_64 b/configure/os/CONFIG.Common.SL6-x86_64
index e4e3519e3..a368943db 100644
--- a/configure/os/CONFIG.Common.SL6-x86_64
+++ b/configure/os/CONFIG.Common.SL6-x86_64
@@ -1,5 +1,5 @@
 # Include definitions common to linux pentium targets
 include $(CONFIG)/os/CONFIG.Common.linux-x86_64
-COMMANDLINE_LIBRARY = READLINE
 
-HOST_OPT=NO
+OPT_CFLAGS += -g
+OPT_CXXFLAGS += -g
diff --git a/configure/os/CONFIG.SL6-x86_64.SL6-x86 b/configure/os/CONFIG.SL6-x86_64.SL6-x86
index 2bf7aace1..e7c55f2a7 100644
--- a/configure/os/CONFIG.SL6-x86_64.SL6-x86
+++ b/configure/os/CONFIG.SL6-x86_64.SL6-x86
@@ -1,2 +1,3 @@
 # Include common linux definitions
 include $(CONFIG)/os/CONFIG.linux-x86.linux-x86
+CROSS_OPT=NO