diff -Nru ecos/acsupport/acinclude.m4.orig ecos/acsupport/acinclude.m4
--- ecos/acsupport/acinclude.m4.orig	2008-08-28 07:08:12.000000000 -0700
+++ ecos/acsupport/acinclude.m4	2008-11-24 19:51:48.000000000 -0800
@@ -494,7 +494,7 @@
     if test "${with_tcl_version+set}" = set ; then
       possibles="${possibles} ${prefix}/lib/tcl${with_tcl_version}"
     fi
-    possibles="${possibles} /usr/lib"
+    possibles="${possibles} /usr/lib64 /usr/lib"
     if test "${with_tcl_version+set}" = set ; then
       possibles="${possibles} /usr/lib/tcl${with_tcl_version}"
     fi
@@ -607,7 +607,7 @@
       possibles="${possibles} ${prefix}/lib/tcl${with_tcl_version}"
       possibles="${possibles} ${prefix}/lib/tk${with_tcl_version}"
     fi
-    possibles="${possibles} /usr/lib"
+    possibles="${possibles} /usr/lib64 /usr/lib"
     if test "${with_tcl_version+set}" = set ; then
       possibles="${possibles} /usr/lib/tcl${with_tcl_version}"
       possibles="${possibles} /usr/lib/tk${with_tcl_version}"
diff -Nru ecos/host/infra/configure.orig ecos/host/infra/configure
diff -Nru ecos/host/libcdl/configure.orig ecos/host/libcdl/configure
--- ecos/host/libcdl/configure.orig	2008-08-28 07:08:12.000000000 -0700
+++ ecos/host/libcdl/configure	2008-11-24 14:32:25.000000000 -0800
@@ -4495,7 +4495,7 @@
     if test "${with_tcl_version+set}" = set ; then
       possibles="${possibles} ${prefix}/lib/tcl${with_tcl_version}"
     fi
-    possibles="${possibles} /usr/lib"
+    possibles="${possibles} /usr/lib /usr/lib64"
     if test "${with_tcl_version+set}" = set ; then
       possibles="${possibles} /usr/lib/tcl${with_tcl_version}"
     fi
@@ -4633,7 +4633,7 @@
       possibles="${possibles} ${prefix}/lib/tcl${with_tcl_version}"
       possibles="${possibles} ${prefix}/lib/tk${with_tcl_version}"
     fi
-    possibles="${possibles} /usr/lib"
+    possibles="${possibles} /usr/lib /usr/lib64"
     if test "${with_tcl_version+set}" = set ; then
       possibles="${possibles} /usr/lib/tcl${with_tcl_version}"
       possibles="${possibles} /usr/lib/tk${with_tcl_version}"
diff -Nru ecos/host/libcdl/configure.in.orig ecos/host/libcdl/configure.in
diff -Nru ecos/host/tools/configtool/standalone/common/configure.orig ecos/host/tools/configtool/standalone/common/configure
--- ecos/host/tools/configtool/standalone/common/configure.orig	2008-08-28 07:08:12.000000000 -0700
+++ ecos/host/tools/configtool/standalone/common/configure	2008-11-24 14:36:18.000000000 -0800
@@ -4534,7 +4534,7 @@
     if test "${with_tcl_version+set}" = set ; then
       possibles="${possibles} ${prefix}/lib/tcl${with_tcl_version}"
     fi
-    possibles="${possibles} /usr/lib"
+    possibles="${possibles} /usr/lib /usr/lib64"
     if test "${with_tcl_version+set}" = set ; then
       possibles="${possibles} /usr/lib/tcl${with_tcl_version}"
     fi
@@ -4672,7 +4672,7 @@
       possibles="${possibles} ${prefix}/lib/tcl${with_tcl_version}"
       possibles="${possibles} ${prefix}/lib/tk${with_tcl_version}"
     fi
-    possibles="${possibles} /usr/lib"
+    possibles="${possibles} /usr/lib /usr/lib64"
     if test "${with_tcl_version+set}" = set ; then
       possibles="${possibles} /usr/lib/tcl${with_tcl_version}"
       possibles="${possibles} /usr/lib/tk${with_tcl_version}"
diff -Nru ecos/packages/hal/synth/arch/current/host/configure.orig ecos/packages/hal/synth/arch/current/host/configure
--- ecos/packages/hal/synth/arch/current/host/configure.orig	2008-08-28 07:08:11.000000000 -0700
+++ ecos/packages/hal/synth/arch/current/host/configure	2008-11-24 19:46:52.000000000 -0800
@@ -4108,7 +4108,7 @@
     if test "${with_tcl_version+set}" = set ; then
       possibles="${possibles} ${prefix}/lib/tcl${with_tcl_version}"
     fi
-    possibles="${possibles} /usr/lib"
+    possibles="${possibles} /usr/lib /usr/lib64"
     if test "${with_tcl_version+set}" = set ; then
       possibles="${possibles} /usr/lib/tcl${with_tcl_version}"
     fi
@@ -4246,7 +4246,7 @@
       possibles="${possibles} ${prefix}/lib/tcl${with_tcl_version}"
       possibles="${possibles} ${prefix}/lib/tk${with_tcl_version}"
     fi
-    possibles="${possibles} /usr/lib"
+    possibles="${possibles} /usr/lib /usr/lib64"
     if test "${with_tcl_version+set}" = set ; then
       possibles="${possibles} /usr/lib/tcl${with_tcl_version}"
       possibles="${possibles} /usr/lib/tk${with_tcl_version}"
diff -Nru ecos/packages/io/usb/slave/current/host/configure.orig ecos/packages/io/usb/slave/current/host/configure
--- ecos/packages/io/usb/slave/current/host/configure.orig	2008-08-28 07:08:11.000000000 -0700
+++ ecos/packages/io/usb/slave/current/host/configure	2008-11-24 19:47:43.000000000 -0800
@@ -4209,7 +4209,7 @@
     if test "${with_tcl_version+set}" = set ; then
       possibles="${possibles} ${prefix}/lib/tcl${with_tcl_version}"
     fi
-    possibles="${possibles} /usr/lib"
+    possibles="${possibles} /usr/lib /usr/lib64"
     if test "${with_tcl_version+set}" = set ; then
       possibles="${possibles} /usr/lib/tcl${with_tcl_version}"
     fi
@@ -4347,7 +4347,7 @@
       possibles="${possibles} ${prefix}/lib/tcl${with_tcl_version}"
       possibles="${possibles} ${prefix}/lib/tk${with_tcl_version}"
     fi
-    possibles="${possibles} /usr/lib"
+    possibles="${possibles} /usr/lib /usr/lib64"
     if test "${with_tcl_version+set}" = set ; then
       possibles="${possibles} /usr/lib/tcl${with_tcl_version}"
       possibles="${possibles} /usr/lib/tk${with_tcl_version}"