First, thanks for solving the former question I ask at 
. And according to answer I have downloaded the SDK and edited the product.mak as follows in ipc_3_42_00_02 just like what IPC_compilerRun.pdf and IPC FAQ:processors.wiki.ti.com/.../IPC_FAQ_for_Keystone_Devices say.
PLATFORM = 66AK2E DESTDIR = /usr/local/ti/ipc_3_42_00_02/ipc_3_42_00_02_lib TOOLCHAIN_LONGNAME = arm-linux-gnueabihf TOOLCHAIN_INSTALL_DIR = /usr/local/gcc-linaro-4.9-2015.05-x86_64_arm-linux-gnueabihf TOOLCHAIN_PREFIX = $(TOOLCHAIN_INSTALL_DIR)/bin/$(TOOLCHAIN_LONGNAME)- XDC_INSTALL_DIR = /usr/local/ti/xdctools_3_31_02_38_core BIOS_INSTALL_DIR = /usr/local/ti/bios_6_41_04_54 ti.targets.elf.C66 = /usr/local/ti/ccsv6/tools/compiler/c6000_7.4.14 gnu.targets.arm.A15F = /usr/local/gcc-linaro-4.9-2015.05-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-gcc
But when I used "make distclean" command it said No rule to make target "disclean". And it said “configure: error: Must set at least one of KERNEL_INSTALL_DIR or AF_RPMSG” when I used "make –f ipc-linux.mak config" command. It seems Ishould set KERNEL_INSTALL_DIR right but I don't know what to be set. Can you tell me and is there anything wrong in product.mak I edit?
