diff --git a/package/base/tcl/tcl.conf b/package/base/tcl/tcl.conf
index a195e3011..e54c3cf30 100644
--- a/package/base/tcl/tcl.conf
+++ b/package/base/tcl/tcl.conf
@@ -23,7 +23,16 @@
 
 var_append makeinstopt " " "install-private-headers"
 
-hook_add preconf 3 "cd unix" 
+hook_add preconf 3 "cd unix"
+
+if [ "$ROCKCFG_CROSSBUILD" = 1 ] ; then
+	var_append extraconfopt " " "--cache-file=config.cache"
+	
+	hook_add preconf 5 " \
+		echo ac_cv_func_memcmp_clean=yes >> config.cache ; \
+		echo tcl_cv_strtod_unbroken=ok >> config.cache"
+fi
+
 hook_add postinstall 3 'ln -vsf tclsh${ver:0:3} $bindir/tclsh'
 hook_add postinstall 3 'ln -vsf libtcl${ver:0:3}.so $libdir/libtcl.so'
 
diff --git a/package/base/tcl/tcl.desc b/package/base/tcl/tcl.desc
index 7e851594c..19a7063bb 100644
--- a/package/base/tcl/tcl.desc
+++ b/package/base/tcl/tcl.desc
@@ -37,8 +37,8 @@
 
 [L] OpenSource
 [S] Stable
-[V] 8.4.14
-[P] X ---3-----9 100.500
+[V] 8.4.15
+[P] X --X3-----9 100.500
 
-[D] 1693504202 tcl8.4.14-src.tar.gz http://mesh.dl.sourceforge.net/sourceforge/tcl/
+[D] 0 tcl8.4.15-src.tar.gz http://mesh.dl.sourceforge.net/sourceforge/tcl/