My host machine is ubuntu18.04.For some reason,i use openwrt branch lede-17.01. I want to port it to RK1808 which is a cortex-a35 chip.Currently, the master branch already support RK3328,i copy the directory target/linux/rockchip into lede-17.01, and change the kernel version to 4.4. RK3328 is cortex-a53, so both rk1808 and rk3328 have the same architecture "armv8-a".when i "make world",tool-chain compile failed,detail:
checking for aarch64-openwrt-linux-musl-ar... /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/bin/ar
checking for aarch64-openwrt-linux-musl-lipo... aarch64-openwrt-linux-musl-lipo
checking for aarch64-openwrt-linux-musl-nm... /home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/nm
checking for aarch64-openwrt-linux-musl-ranlib... /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/bin/ranlib
checking for aarch64-openwrt-linux-musl-strip... /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/bin/strip
checking whether ln -s works... yes
checking for aarch64-openwrt-linux-musl-gcc... /home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/xgcc -B/home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/ -B/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/bin/ -B/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/lib/ -isystem /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/include -isystem /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/sys-include
checking for suffix of object files... configure: error: in `/home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/aarch64-openwrt-linux-musl/libgcc':
configure: error: cannot compute suffix of object files: cannot compile
See `config.log' for more details.
Makefile:10977: recipe for target 'configure-target-libgcc' failed
make[4]: *** [configure-target-libgcc] Error 1
make[4]: Leaving directory '/home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial'
Makefile:36: recipe for target '/home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/.built' failed
make[3]: *** [/home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/.built] Error 2
make[3]: Leaving directory '/home/thomas/workspace/rk1808/openwrt/toolchain/gcc/initial'
toolchain/Makefile:91: recipe for target 'toolchain/gcc/initial/compile' failed
make[2]: *** [toolchain/gcc/initial/compile] Error 2
make[2]: Leaving directory '/home/thomas/workspace/rk1808/openwrt'
toolchain/Makefile:89: recipe for target '/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/stamp/.toolchain_install' failed
make[1]: *** [/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/stamp/.toolchain_install] Error 2
make[1]: Leaving directory '/home/thomas/workspace/rk1808/openwrt'
/home/thomas/workspace/rk1808/openwrt/include/toplevel.mk:205: recipe for target 'world' failed
make: *** [world] Error 2
it seems compile libgcc failed, config.log file of libgcc is:
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.
It was created by GNU C Runtime Library configure 1.0, which was
generated by GNU Autoconf 2.64. Invocation command line was
$ /home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0/libgcc/configure --srcdir=/home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0/libgcc --cache-file=./config.cache --with-cross-host=x86_64-linux-gnu --with-bugurl=http://www.lede-project.org/bugs/ --with-pkgversion=LEDE GCC 6.3.0 r4046-beaa2ecc10 --prefix=/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16 --with-gnu-ld --enable-target-optspace --disable-libgomp --disable-libmudflap --disable-multilib --disable-libmpx --disable-nls --without-cloog --with-host-libstdcxx=-lstdc++ --disable-decimal-float --with-diagnostics-color=auto-if-env --disable-libssp --enable-__cxa_atexit --with-newlib --with-sysroot=/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16 --disable-shared --disable-threads --enable-languages=c,lto --program-transform-name=s&^&aarch64-openwrt-linux-musl-& --disable-option-checking --with-target-subdir=aarch64-openwrt-linux-musl --build=x86_64-linux-gnu --host=aarch64-openwrt-linux-musl --target=aarch64-openwrt-linux-musl
## --------- ##
## Platform. ##
## --------- ##
hostname = thomas-virtual-machine
uname -m = x86_64
uname -r = 5.4.0-53-generic
uname -s = Linux
uname -v = #59~18.04.1-Ubuntu SMP Wed Oct 21 12:14:56 UTC 2020
/usr/bin/uname -p = unknown
/bin/uname -X = unknown
/bin/arch = unknown
/usr/bin/arch -k = unknown
/usr/convex/getsysinfo = unknown
/usr/bin/hostinfo = unknown
/bin/machine = unknown
/usr/bin/oslevel = unknown
/bin/universe = unknown
PATH: /home/thomas/workspace/rk1808/openwrt/staging_dir/host/bin
PATH: /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/bin
PATH: /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/bin
PATH: /home/thomas/workspace/rk1808/openwrt/staging_dir/host/bin
PATH: /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/bin
PATH: /home/thomas/workspace/rk1808/openwrt/staging_dir/host/bin
PATH: /home/thomas/workspace/rk1808/openwrt/staging_dir/host/bin
PATH: /usr/local/sbin
PATH: /usr/local/bin
PATH: /usr/sbin
PATH: /usr/bin
PATH: /sbin
PATH: /bin
PATH: /usr/games
PATH: /usr/local/games
PATH: /snap/bin
PATH: /opt/gcc-linaro-arm-linux-gnueabihf-4.9-2014.09_linux/bin
## ----------- ##
## Core tests. ##
## ----------- ##
configure:2016: loading cache ./config.cache
configure:2230: checking build system type
configure:2244: result: x86_64-pc-linux-gnu
configure:2264: checking host system type
configure:2277: result: aarch64-openwrt-linux-musl
configure:2380: checking for --enable-version-specific-runtime-libs
configure:2393: result: no
configure:2441: checking for a BSD-compatible install
configure:2509: result: /usr/bin/install -c
configure:2525: checking for gawk
configure:2552: result: gawk
configure:2652: checking for aarch64-openwrt-linux-musl-ar
configure:2679: result: /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/bin/ar
configure:2744: checking for aarch64-openwrt-linux-musl-lipo
configure:2771: result: aarch64-openwrt-linux-musl-lipo
configure:2836: checking for aarch64-openwrt-linux-musl-nm
configure:2863: result: /home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/nm
configure:2928: checking for aarch64-openwrt-linux-musl-ranlib
configure:2955: result: /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/bin/ranlib
configure:3020: checking for aarch64-openwrt-linux-musl-strip
configure:3047: result: /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/bin/strip
configure:3109: checking whether ln -s works
configure:3113: result: yes
configure:3130: checking for aarch64-openwrt-linux-musl-gcc
configure:3157: result: /home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/xgcc -B/home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/ -B/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/bin/ -B/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/lib/ -isystem /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/include -isystem /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/sys-include
configure:3426: checking for C compiler version
configure:3435: /home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/xgcc -B/home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/ -B/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/bin/ -B/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/lib/ -isystem /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/include -isystem /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/sys-include --version >&5
xgcc (LEDE GCC 6.3.0 r4046-beaa2ecc10) 6.3.0
Copyright (C) 2016 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
configure:3446: $? = 0
configure:3435: /home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/xgcc -B/home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/ -B/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/bin/ -B/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/lib/ -isystem /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/include -isystem /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/sys-include -v >&5
Reading specs from /home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/specs
COLLECT_GCC=/home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/xgcc
COLLECT_LTO_WRAPPER=/home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/lto-wrapper
Target: aarch64-openwrt-linux-musl
Configured with: /home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0/configure --with-bugurl=http://www.lede-project.org/bugs/ --with-pkgversion='LEDE GCC 6.3.0 r4046-beaa2ecc10' --prefix=/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16 --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=aarch64-openwrt-linux-musl --with-gnu-ld --enable-target-optspace --disable-libgomp --disable-libmudflap --disable-multilib --disable-libmpx --disable-nls --without-isl --without-cloog --with-host-libstdcxx=-lstdc++ --with-gmp=/home/thomas/workspace/rk1808/openwrt/staging_dir/host --with-mpfr=/home/thomas/workspace/rk1808/openwrt/staging_dir/host --with-mpc=/home/thomas/workspace/rk1808/openwrt/staging_dir/host --disable-decimal-float --with-diagnostics-color=auto-if-env --disable-libssp --enable-__cxa_atexit --with-newlib --with-sysroot=/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16 --enable-languages=c --disable-shared --disable-threads
Thread model: single
gcc version 6.3.0 (LEDE GCC 6.3.0 r4046-beaa2ecc10)
configure:3446: $? = 0
configure:3435: /home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/xgcc -B/home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/ -B/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/bin/ -B/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/lib/ -isystem /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/include -isystem /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/sys-include -V >&5
xgcc: error: unrecognized command line option '-V'
xgcc: fatal error: no input files
compilation terminated.
configure:3446: $? = 1
configure:3435: /home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/xgcc -B/home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/ -B/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/bin/ -B/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/lib/ -isystem /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/include -isystem /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/sys-include -qversion >&5
xgcc: error: unrecognized command line option '-qversion'; did you mean '--version'?
xgcc: fatal error: no input files
compilation terminated.
configure:3446: $? = 1
configure:3462: /home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/xgcc -B/home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/ -B/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/bin/ -B/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/lib/ -isystem /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/include -isystem /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/sys-include -o conftest -Os -pipe -mcpu=armv8-a -fno-caller-saves -fno-plt -fhonour-copts -Wno-error=unused-but-set-variable -Wno-error=unused-result conftest.c >&5
xgcc: fatal error: unknown value 'armv8-a' for -mcpu
compilation terminated.
configure:3465: $? = 1
configure:3653: checking for suffix of object files
configure:3675: /home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/xgcc -B/home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/ -B/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/bin/ -B/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/lib/ -isystem /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/include -isystem /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/sys-include -c -Os -pipe -mcpu=armv8-a -fno-caller-saves -fno-plt -fhonour-copts -Wno-error=unused-but-set-variable -Wno-error=unused-result conftest.c >&5
xgcc: fatal error: unknown value 'armv8-a' for -mcpu
compilation terminated.
configure:3679: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "GNU C Runtime Library"
| #define PACKAGE_TARNAME "libgcc"
| #define PACKAGE_VERSION "1.0"
| #define PACKAGE_STRING "GNU C Runtime Library 1.0"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL "http://www.gnu.org/software/libgcc/"
| /* end confdefs.h. */
|
| int
| main ()
| {
|
| ;
| return 0;
| }
configure:3693: error: in `/home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/aarch64-openwrt-linux-musl/libgcc':
configure:3696: error: cannot compute suffix of object files: cannot compile
See `config.log' for more details.
## ---------------- ##
## Cache variables. ##
## ---------------- ##
ac_cv_build=x86_64-pc-linux-gnu
ac_cv_env_CC_set=set
ac_cv_env_CC_value=' /home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/xgcc -B/home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/ -B/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/bin/ -B/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/lib/ -isystem /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/include -isystem /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/sys-include '
ac_cv_env_CFLAGS_set=set
ac_cv_env_CFLAGS_value='-Os -pipe -mcpu=armv8-a -fno-caller-saves -fno-plt -fhonour-copts -Wno-error=unused-but-set-variable -Wno-error=unused-result'
ac_cv_env_CPPFLAGS_set=set
ac_cv_env_CPPFLAGS_value=
ac_cv_env_CPP_set=
ac_cv_env_CPP_value=
ac_cv_env_LDFLAGS_set=set
ac_cv_env_LDFLAGS_value=
ac_cv_env_LIBS_set=
ac_cv_env_LIBS_value=
ac_cv_env_build_alias_set=set
ac_cv_env_build_alias_value=x86_64-linux-gnu
ac_cv_env_host_alias_set=set
ac_cv_env_host_alias_value=aarch64-openwrt-linux-musl
ac_cv_env_target_alias_set=set
ac_cv_env_target_alias_value=aarch64-openwrt-linux-musl
ac_cv_host=aarch64-openwrt-linux-musl
ac_cv_path_install='/usr/bin/install -c'
ac_cv_prog_AR=/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/bin/ar
ac_cv_prog_AWK=gawk
ac_cv_prog_CC=' /home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/xgcc -B/home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/ -B/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/bin/ -B/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/lib/ -isystem /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/include -isystem /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/sys-include '
ac_cv_prog_LIPO=aarch64-openwrt-linux-musl-lipo
ac_cv_prog_NM=/home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/nm
ac_cv_prog_RANLIB=/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/bin/ranlib
ac_cv_prog_STRIP=/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/bin/strip
libgcc_cv_fixed_point=no
## ----------------- ##
## Output variables. ##
## ----------------- ##
AR='/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/bin/ar'
AWK='gawk'
CC=' /home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/xgcc -B/home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/ -B/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/bin/ -B/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/lib/ -isystem /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/include -isystem /home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/sys-include '
CFLAGS='-Os -pipe -mcpu=armv8-a -fno-caller-saves -fno-plt -fhonour-copts -Wno-error=unused-but-set-variable -Wno-error=unused-result'
CPP=''
CPPFLAGS=''
DEFS=''
ECHO_C=''
ECHO_N='-n'
ECHO_T=''
EGREP=''
EXEEXT=''
GREP=''
INSTALL_DATA='${INSTALL} -m 644'
INSTALL_PROGRAM='${INSTALL}'
INSTALL_SCRIPT='${INSTALL}'
LDFLAGS=''
LIBOBJS=''
LIBS=''
LIPO='aarch64-openwrt-linux-musl-lipo'
LN_S='ln -s'
LTLIBOBJS=''
MAINT='#'
NM='/home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0-initial/./gcc/nm'
OBJEXT=''
PACKAGE_BUGREPORT=''
PACKAGE_NAME='GNU C Runtime Library'
PACKAGE_STRING='GNU C Runtime Library 1.0'
PACKAGE_TARNAME='libgcc'
PACKAGE_URL='http://www.gnu.org/software/libgcc/'
PACKAGE_VERSION='1.0'
PATH_SEPARATOR=':'
PICFLAG='-fPIC'
RANLIB='/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/bin/ranlib'
SHELL='/bin/bash'
STRIP='/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/aarch64-openwrt-linux-musl/bin/strip'
ac_ct_CC=''
accel_dir_suffix=''
asm_hidden_op=''
bindir='${exec_prefix}/bin'
build='x86_64-pc-linux-gnu'
build_alias='x86_64-linux-gnu'
build_cpu='x86_64'
build_libsubdir='build-x86_64-linux-gnu'
build_os='linux-gnu'
build_subdir='build-x86_64-linux-gnu'
build_vendor='pc'
cpu_type=''
datadir='${datarootdir}'
datarootdir='${prefix}/share'
decimal_float=''
docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
double_type_size=''
dvidir='${docdir}'
enable_decimal_float='no'
enable_shared='no'
enable_vtable_verify='no'
exec_prefix='NONE'
extra_parts=''
fixed_point=''
force_explicit_eh_registry=''
host='aarch64-openwrt-linux-musl'
host_alias='aarch64-openwrt-linux-musl'
host_cpu='aarch64'
host_noncanonical='aarch64-openwrt-linux-musl'
host_os='linux-musl'
host_subdir='.'
host_vendor='openwrt'
htmldir='${docdir}'
includedir='${prefix}/include'
infodir='${datarootdir}/info'
libdir='${exec_prefix}/lib'
libexecdir='${exec_prefix}/libexec'
libgcc_topdir='/home/thomas/workspace/rk1808/openwrt/build_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16/gcc-6.3.0/libgcc/..'
localedir='${datarootdir}/locale'
localstatedir='${prefix}/var'
long_double_type_size=''
mandir='${datarootdir}/man'
oldincludedir='/usr/include'
pdfdir='${docdir}'
prefix='/home/thomas/workspace/rk1808/openwrt/staging_dir/toolchain-aarch64_armv8-a_gcc-6.3.0_musl-1.1.16'
program_transform_name='s&^&aarch64-openwrt-linux-musl-&'
psdir='${docdir}'
real_host_noncanonical=''
sbindir='${exec_prefix}/sbin'
set_have_cc_tls=''
set_use_emutls=''
sfp_machine_header=''
sharedstatedir='${prefix}/com'
slibdir='$(exec_prefix)/$(host_noncanonical)/lib'
sysconfdir='${prefix}/etc'
target_alias='aarch64-openwrt-linux-musl'
target_noncanonical='aarch64-openwrt-linux-musl'
target_subdir='aarch64-openwrt-linux-musl'
thread_header=''
tm_defines=''
tm_file=''
tmake_file=''
toolexecdir='$(exec_prefix)/$(target_noncanonical)'
toolexeclibdir='$(toolexecdir)/lib'
vis_hide=''
with_aix_soname='aix'
## ----------- ##
## confdefs.h. ##
## ----------- ##
/* confdefs.h */
#define PACKAGE_NAME "GNU C Runtime Library"
#define PACKAGE_TARNAME "libgcc"
#define PACKAGE_VERSION "1.0"
#define PACKAGE_STRING "GNU C Runtime Library 1.0"
#define PACKAGE_BUGREPORT ""
#define PACKAGE_URL "http://www.gnu.org/software/libgcc/"
configure: exit 1
thanks!!