fix ccache usage

package/ffmpeg/Makefile

@@ -51,7 +51,7 @@ CONFIGURE_ARGS:=	--prefix=/usr \
 			--sysroot=${STAGING_TARGET_DIR} \
 			--source-path=${WRKSRC} \
 			--cross-prefix=${TARGET_CROSS} \
-			--cc=$(TARGET_CC) \
+			--cc='$(TARGET_CC)' \
 			--host-cc=$(CC_FOR_BUILD) \
 			--disable-doc \
 			--disable-debug \

package/iproute2/Makefile

@@ -43,7 +43,7 @@ $(eval $(call PKG_template,RTMON,rtmon,${PKG_VERSION}-${PKG_RELEASE},,${PKGSD_RT
 $(eval $(call PKG_template,SS,ss,${PKG_VERSION}-${PKG_RELEASE},,${PKGSD_SS},${PKG_SECTION}))
 
 TARGET_CFLAGS+=		-D_GNU_SOURCE
-XAKE_FLAGS+=		CCOPTS="${TARGET_CFLAGS}" MFLAGS="CC=${TARGET_CC}" \
+XAKE_FLAGS+=		CCOPTS="${TARGET_CFLAGS}" MFLAGS="CC=\"${TARGET_CC}\"" \
 			HOSTCFLAGS="-I${LINUX_HEADER_DIR}/include"
 CONFIGURE_ENV+=		IPTC="${TARGET_CFLAGS}" IPTL="${TARGET_LDFLAGS}"
 

package/mplayer/Makefile

@@ -83,7 +83,7 @@ CONFIGURE_ARGS:=	--prefix=/usr \
 			--confdir=/etc \
 			--enable-cross-compile \
 			--target=${ARCH}-linux \
-			--cc=$(TARGET_CC) \
+			--cc='$(TARGET_CC)' \
 			--host-cc=$(CC_FOR_BUILD) \
 			--yasm='' \
 			--disable-mencoder \