diff --git a/harbour/ChangeLog b/harbour/ChangeLog
index ff890030a0..5d3b2fa31a 100644
--- a/harbour/ChangeLog
+++ b/harbour/ChangeLog
@@ -7,6 +7,12 @@
    For example:
    2002-12-01 23:12 UTC+0100 Foo Bar <foo.bar@foobar.org>
 */
+  * contrib/libct/files.c
+  * contrib/libct/pos1.c
+  * contrib/libct/posdiff.c
+  * contrib/libct/strswap.c
+    * Add some values for default to eliminate warnings when compiling
+      with gcc -O2.
   * contrib/libct/ctflist.txt
     * state of CSETCENT() and UNSELECTED(): started.
 
diff --git a/harbour/config/linux/gcc.cf b/harbour/config/linux/gcc.cf
index afe10f65d0..f887fa729b 100644
--- a/harbour/config/linux/gcc.cf
+++ b/harbour/config/linux/gcc.cf
@@ -9,7 +9,7 @@ EXE_EXT =
 LIB_PREF = lib
 LIB_EXT = .a
 
-CC = gcc
+CC = $(HB_CCACHE) gcc
 CC_IN = -c
 CC_OUT = -o
 CPPFLAGS = -I. -I$(HB_INC_COMPILE)
@@ -19,7 +19,7 @@ else
 CFLAGS = -Wall -g
 endif
 
-LD = gcc
+LD = $(HB_CCACHE) gcc
 LD_OUT = -o
 
 # Add all libraries specified in CONTRIBS and LIBS.