Move ccache to hidden options (enabled by default)

compile.sh

@@ -31,7 +31,6 @@ GPG_PASS=""						# signing password
 
 # advanced
 KERNEL_KEEP_CONFIG="no"					# overwrite kernel config before compilation
-USE_CCACHE="yes"					# use ccache for kernel compilation
 FBTFT="yes"						# https://github.com/notro/fbtft 
 EXTERNAL="yes"						# compile extra drivers`
 FORCE_CHECKOUT="yes"					# igre manual changes to source

main.sh

@@ -30,12 +30,18 @@ for i in "$@"; do
 	fi
 done
 
-if [ "$PROGRESS_DISPLAY" = "none" ]; then
+if [[ $PROGRESS_DISPLAY == none ]]; then
 	OUTPUT_VERYSILENT=yes;
-elif [ "$PROGRESS_DISPLAY" != "plain" ]; then
+elif [[ $PROGRESS_DISPLAY != plain ]]; then
 	OUTPUT_DIALOG=yes;
 fi
-if [ "$PROGRESS_LOG_TO_FILE" != "yes" ]; then unset PROGRESS_LOG_TO_FILE; fi
+if [[ $PROGRESS_LOG_TO_FILE != yes ]]; then unset PROGRESS_LOG_TO_FILE; fi
+
+if [[ $USE_CCACHE != no ]]; then
+	CCACHE=ccache
+else
+	CCACHE=""
+fi
 
 # compile.sh version checking
 ver1=$(grep '^# VERSION' "$SRC/compile.sh" | cut -d'=' -f2)
@@ -210,13 +216,6 @@ else
 	CTHREADS="-j${CPUS}";
 fi
 
-# Use C compiler cache
-if [ "$USE_CCACHE" = "yes" ]; then 
-	CCACHE="ccache"; 
-else 
-	CCACHE=""; 
-fi
-
 # display what we do	
 if [ "$KERNEL_ONLY" == "yes" ]; then
 	display_alert "Compiling kernel" "$BOARD" "info"