This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.

It was created by libgpiod configure 1.4.1, which was
generated by GNU Autoconf 2.69.  Invocation command line was

  $ ./configure --target=arm-buildroot-uclinux-uclibcgnueabi --host=arm-buildroot-uclinux-uclibcgnueabi --build=x86_64-pc-linux-gnu --prefix=/usr --exec-prefix=/usr --sysconfdir=/etc --localstatedir=/var --program-prefix= --disable-gtk-doc --disable-gtk-doc-html --disable-doc --disable-docs --disable-documentation --with-xmlto=no --with-fop=no --disable-dependency-tracking --enable-ipv6 --disable-nls --enable-static --disable-shared --disable-tools --enable-bindings-cxx --disable-bindings-python

## --------- ##
## Platform. ##
## --------- ##

hostname = bacon
uname -m = x86_64
uname -r = 4.4.0-184-generic
uname -s = Linux
uname -v = #214-Ubuntu SMP Thu Jun 4 10:14:11 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: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin
PATH: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/sbin
PATH: /usr/local/sbin
PATH: /usr/local/bin
PATH: /sbin
PATH: /bin
PATH: /usr/sbin
PATH: /usr/bin
PATH: /opt/aws/bin
PATH: /root/bin


## ----------- ##
## Core tests. ##
## ----------- ##

configure:2500: checking for a BSD-compatible install
configure:2568: result: /usr/bin/install -c
configure:2579: checking whether build environment is sane
configure:2634: result: yes
configure:2693: checking for arm-buildroot-uclinux-uclibcgnueabi-strip
configure:2720: result: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-strip
configure:2785: checking for a thread-safe mkdir -p
configure:2824: result: /bin/mkdir -p
configure:2831: checking for gawk
configure:2847: found /usr/bin/gawk
configure:2858: result: gawk
configure:2869: checking whether make sets $(MAKE)
configure:2891: result: yes
configure:2920: checking whether make supports nested variables
configure:2937: result: yes
configure:3075: checking whether make supports nested variables
configure:3092: result: yes
configure:3124: checking whether make supports the include directive
configure:3139: make -f confmf.GNU && cat confinc.out
make[1]: Entering directory '/nvme/rc-buildroot-test/scripts/instance-0/output-1/build/libgpiod-1.4.1'
make[1]: Leaving directory '/nvme/rc-buildroot-test/scripts/instance-0/output-1/build/libgpiod-1.4.1'
this is the am__doit target
configure:3142: $? = 0
configure:3161: result: yes (GNU style)
configure:3191: checking for arm-buildroot-uclinux-uclibcgnueabi-gcc
configure:3218: result: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc
configure:3487: checking for C compiler version
configure:3496: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc --version >&5
arm-linux-gcc.br_real (Buildroot 2020.02) 8.3.0
Copyright (C) 2018 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:3507: $? = 0
configure:3496: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc -v >&5
Using built-in specs.
COLLECT_GCC=/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/arm-linux-gcc.br_real
COLLECT_LTO_WRAPPER=/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../libexec/gcc/arm-buildroot-uclinux-uclibcgnueabi/8.3.0/lto-wrapper
Target: arm-buildroot-uclinux-uclibcgnueabi
Configured with: ./configure --prefix=/opt/br-arm-cortex-m4-full-2020.02 --sysconfdir=/opt/br-arm-cortex-m4-full-2020.02/etc --enable-static --target=arm-buildroot-uclinux-uclibcgnueabi --with-sysroot=/opt/br-arm-cortex-m4-full-2020.02/arm-buildroot-uclinux-uclibcgnueabi/sysroot --enable-__cxa_atexit --with-gnu-ld --disable-libssp --disable-multilib --disable-decimal-float --with-gmp=/opt/br-arm-cortex-m4-full-2020.02 --with-mpc=/opt/br-arm-cortex-m4-full-2020.02 --with-mpfr=/opt/br-arm-cortex-m4-full-2020.02 --with-pkgversion='Buildroot 2020.02' --with-bugurl=http://bugs.buildroot.net/ --disable-libquadmath --disable-libsanitizer --disable-tls --enable-threads --without-isl --without-cloog --with-float=soft --with-abi=aapcs-linux --with-cpu=cortex-m4 --with-float=soft --with-mode=thumb --enable-languages=c,c++ --with-build-time-tools=/opt/br-arm-cortex-m4-full-2020.02/arm-buildroot-uclinux-uclibcgnueabi/bin --disable-shared --disable-libgomp
Thread model: posix
gcc version 8.3.0 (Buildroot 2020.02) 
COMPILER_PATH=/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../libexec/gcc/arm-buildroot-uclinux-uclibcgnueabi/8.3.0/:/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../libexec/gcc/:/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-uclinux-uclibcgnueabi/8.3.0/../../../../arm-buildroot-uclinux-uclibcgnueabi/bin/
LIBRARY_PATH=/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-uclinux-uclibcgnueabi/8.3.0/:/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/:/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-uclinux-uclibcgnueabi/8.3.0/../../../../arm-buildroot-uclinux-uclibcgnueabi/lib/:/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/arm-buildroot-uclinux-uclibcgnueabi/sysroot/lib/:/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/arm-buildroot-uclinux-uclibcgnueabi/sysroot/usr/lib/
COLLECT_GCC_OPTIONS='-mabi=aapcs-linux' '-mfloat-abi=soft' '-mthumb' '-mfloat-abi=soft' '-mcpu=cortex-m4' '-v' '-march=armv7e-m'
... rest of stderr output deleted ...
configure:3507: $? = 1
configure:3496: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc -V >&5
arm-linux-gcc.br_real: error: unrecognized command line option '-V'
configure:3507: $? = 1
configure:3496: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc -qversion >&5
arm-linux-gcc.br_real: error: unrecognized command line option '-qversion'; did you mean '--version'?
configure:3507: $? = 1
configure:3527: checking whether the C compiler works
configure:3549: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os    -Wl,-elf2flt -static -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Wl,-elf2flt -static conftest.c  >&5
configure:3553: $? = 0
configure:3601: result: yes
configure:3604: checking for C compiler default output file name
configure:3606: result: a.out
configure:3612: checking for suffix of executables
configure:3619: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc -o conftest -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os    -Wl,-elf2flt -static -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Wl,-elf2flt -static conftest.c  >&5
configure:3623: $? = 0
configure:3645: result: 
configure:3667: checking whether we are cross compiling
configure:3705: result: yes
configure:3710: checking for suffix of object files
configure:3732: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc -c -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os    -Wl,-elf2flt -static -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:3736: $? = 0
configure:3757: result: o
configure:3761: checking whether we are using the GNU C compiler
configure:3780: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc -c -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os    -Wl,-elf2flt -static -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:3780: $? = 0
configure:3789: result: yes
configure:3798: checking whether /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc accepts -g
configure:3818: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc -c -g -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:3818: $? = 0
configure:3859: result: yes
configure:3876: checking for /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc option to accept ISO C89
configure:3939: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc  -c -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os    -Wl,-elf2flt -static -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:3939: $? = 0
configure:3952: result: none needed
configure:3977: checking whether /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc understands -c and -o together
configure:3999: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc -c conftest.c -o conftest2.o
configure:4002: $? = 0
configure:3999: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc -c conftest.c -o conftest2.o
configure:4002: $? = 0
configure:4014: result: yes
configure:4033: checking dependency style of /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc
configure:4144: result: none
configure:4165: checking for arm-buildroot-uclinux-uclibcgnueabi-ar
configure:4192: result: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-ar
configure:4262: checking the archiver (/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-ar) interface
configure:4278: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc -c -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os    -Wl,-elf2flt -static -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:4278: $? = 0
configure:4280: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-ar cru libconftest.a conftest.o >&5
configure:4283: $? = 0
configure:4311: result: ar
configure:4339: checking for arm-buildroot-uclinux-uclibcgnueabi-gcc
configure:4366: result: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc
configure:4635: checking for C compiler version
configure:4644: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc --version >&5
arm-linux-gcc.br_real (Buildroot 2020.02) 8.3.0
Copyright (C) 2018 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:4655: $? = 0
configure:4644: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc -v >&5
Using built-in specs.
COLLECT_GCC=/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/arm-linux-gcc.br_real
COLLECT_LTO_WRAPPER=/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../libexec/gcc/arm-buildroot-uclinux-uclibcgnueabi/8.3.0/lto-wrapper
Target: arm-buildroot-uclinux-uclibcgnueabi
Configured with: ./configure --prefix=/opt/br-arm-cortex-m4-full-2020.02 --sysconfdir=/opt/br-arm-cortex-m4-full-2020.02/etc --enable-static --target=arm-buildroot-uclinux-uclibcgnueabi --with-sysroot=/opt/br-arm-cortex-m4-full-2020.02/arm-buildroot-uclinux-uclibcgnueabi/sysroot --enable-__cxa_atexit --with-gnu-ld --disable-libssp --disable-multilib --disable-decimal-float --with-gmp=/opt/br-arm-cortex-m4-full-2020.02 --with-mpc=/opt/br-arm-cortex-m4-full-2020.02 --with-mpfr=/opt/br-arm-cortex-m4-full-2020.02 --with-pkgversion='Buildroot 2020.02' --with-bugurl=http://bugs.buildroot.net/ --disable-libquadmath --disable-libsanitizer --disable-tls --enable-threads --without-isl --without-cloog --with-float=soft --with-abi=aapcs-linux --with-cpu=cortex-m4 --with-float=soft --with-mode=thumb --enable-languages=c,c++ --with-build-time-tools=/opt/br-arm-cortex-m4-full-2020.02/arm-buildroot-uclinux-uclibcgnueabi/bin --disable-shared --disable-libgomp
Thread model: posix
gcc version 8.3.0 (Buildroot 2020.02) 
COMPILER_PATH=/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../libexec/gcc/arm-buildroot-uclinux-uclibcgnueabi/8.3.0/:/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../libexec/gcc/:/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-uclinux-uclibcgnueabi/8.3.0/../../../../arm-buildroot-uclinux-uclibcgnueabi/bin/
LIBRARY_PATH=/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-uclinux-uclibcgnueabi/8.3.0/:/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/:/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-uclinux-uclibcgnueabi/8.3.0/../../../../arm-buildroot-uclinux-uclibcgnueabi/lib/:/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/arm-buildroot-uclinux-uclibcgnueabi/sysroot/lib/:/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/arm-buildroot-uclinux-uclibcgnueabi/sysroot/usr/lib/
COLLECT_GCC_OPTIONS='-mabi=aapcs-linux' '-mfloat-abi=soft' '-mthumb' '-mfloat-abi=soft' '-mcpu=cortex-m4' '-v' '-march=armv7e-m'
... rest of stderr output deleted ...
configure:4655: $? = 1
configure:4644: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc -V >&5
arm-linux-gcc.br_real: error: unrecognized command line option '-V'
configure:4655: $? = 1
configure:4644: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc -qversion >&5
arm-linux-gcc.br_real: error: unrecognized command line option '-qversion'; did you mean '--version'?
configure:4655: $? = 1
configure:4659: checking whether we are using the GNU C compiler
configure:4687: result: yes
configure:4696: checking whether /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc accepts -g
configure:4757: result: yes
configure:4774: checking for /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc option to accept ISO C89
configure:4850: result: none needed
configure:4875: checking whether /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc understands -c and -o together
configure:4912: result: yes
configure:4931: checking dependency style of /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc
configure:5042: result: none
configure:5169: checking for C++ compiler version
configure:5178: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-g++ --version >&5
arm-linux-g++.br_real (Buildroot 2020.02) 8.3.0
Copyright (C) 2018 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:5189: $? = 0
configure:5178: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-g++ -v >&5
Using built-in specs.
COLLECT_GCC=/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/arm-linux-g++.br_real
COLLECT_LTO_WRAPPER=/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../libexec/gcc/arm-buildroot-uclinux-uclibcgnueabi/8.3.0/lto-wrapper
Target: arm-buildroot-uclinux-uclibcgnueabi
Configured with: ./configure --prefix=/opt/br-arm-cortex-m4-full-2020.02 --sysconfdir=/opt/br-arm-cortex-m4-full-2020.02/etc --enable-static --target=arm-buildroot-uclinux-uclibcgnueabi --with-sysroot=/opt/br-arm-cortex-m4-full-2020.02/arm-buildroot-uclinux-uclibcgnueabi/sysroot --enable-__cxa_atexit --with-gnu-ld --disable-libssp --disable-multilib --disable-decimal-float --with-gmp=/opt/br-arm-cortex-m4-full-2020.02 --with-mpc=/opt/br-arm-cortex-m4-full-2020.02 --with-mpfr=/opt/br-arm-cortex-m4-full-2020.02 --with-pkgversion='Buildroot 2020.02' --with-bugurl=http://bugs.buildroot.net/ --disable-libquadmath --disable-libsanitizer --disable-tls --enable-threads --without-isl --without-cloog --with-float=soft --with-abi=aapcs-linux --with-cpu=cortex-m4 --with-float=soft --with-mode=thumb --enable-languages=c,c++ --with-build-time-tools=/opt/br-arm-cortex-m4-full-2020.02/arm-buildroot-uclinux-uclibcgnueabi/bin --disable-shared --disable-libgomp
Thread model: posix
gcc version 8.3.0 (Buildroot 2020.02) 
COMPILER_PATH=/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../libexec/gcc/arm-buildroot-uclinux-uclibcgnueabi/8.3.0/:/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../libexec/gcc/:/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-uclinux-uclibcgnueabi/8.3.0/../../../../arm-buildroot-uclinux-uclibcgnueabi/bin/
LIBRARY_PATH=/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-uclinux-uclibcgnueabi/8.3.0/:/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/:/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-uclinux-uclibcgnueabi/8.3.0/../../../../arm-buildroot-uclinux-uclibcgnueabi/lib/:/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/arm-buildroot-uclinux-uclibcgnueabi/sysroot/lib/:/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/arm-buildroot-uclinux-uclibcgnueabi/sysroot/usr/lib/
COLLECT_GCC_OPTIONS='-mabi=aapcs-linux' '-mfloat-abi=soft' '-mthumb' '-mfloat-abi=soft' '-mcpu=cortex-m4' '-v' '-march=armv7e-m'
... rest of stderr output deleted ...
configure:5189: $? = 1
configure:5178: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-g++ -V >&5
arm-linux-g++.br_real: error: unrecognized command line option '-V'
configure:5189: $? = 1
configure:5178: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-g++ -qversion >&5
arm-linux-g++.br_real: error: unrecognized command line option '-qversion'; did you mean '--version'?
configure:5189: $? = 1
configure:5193: checking whether we are using the GNU C++ compiler
configure:5212: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-g++ -c -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os    -Wl,-elf2flt -static  -Wl,-elf2flt -static -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.cpp >&5
conftest.cpp:11: warning: "_GNU_SOURCE" redefined
 #define _GNU_SOURCE /**/
 
<command-line>: note: this is the location of the previous definition
configure:5212: $? = 0
configure:5221: result: yes
configure:5230: checking whether /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-g++ accepts -g
configure:5250: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-g++ -c -g -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.cpp >&5
conftest.cpp:11: warning: "_GNU_SOURCE" redefined
 #define _GNU_SOURCE /**/
 
<command-line>: note: this is the location of the previous definition
configure:5250: $? = 0
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "libgpiod"
| #define PACKAGE_TARNAME "libgpiod"
| #define PACKAGE_VERSION "1.4.1"
| #define PACKAGE_STRING "libgpiod 1.4.1"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL ""
| #define GPIOD_VERSION_STR "1.4.1"
| #define PACKAGE "libgpiod"
| #define VERSION "1.4.1"
| #define _GNU_SOURCE /**/
| /* end confdefs.h.  */
| 
| int
| main ()
| {
| 
|   ;
|   return 0;
| }
configure:5265: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-g++ -c  -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.cpp >&5
conftest.cpp:11: warning: "_GNU_SOURCE" redefined
 #define _GNU_SOURCE /**/
 
<command-line>: note: this is the location of the previous definition
configure:5265: $? = 0
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "libgpiod"
| #define PACKAGE_TARNAME "libgpiod"
| #define PACKAGE_VERSION "1.4.1"
| #define PACKAGE_STRING "libgpiod 1.4.1"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL ""
| #define GPIOD_VERSION_STR "1.4.1"
| #define PACKAGE "libgpiod"
| #define VERSION "1.4.1"
| #define _GNU_SOURCE /**/
| /* end confdefs.h.  */
| 
| int
| main ()
| {
| 
|   ;
|   return 0;
| }
configure:5281: /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-g++ -c -g -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.cpp >&5
conftest.cpp:11: warning: "_GNU_SOURCE" redefined
 #define _GNU_SOURCE /**/
 
<command-line>: note: this is the location of the previous definition
configure:5281: $? = 0
configure:5291: result: yes
configure:5316: checking dependency style of /nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-g++
configure:5427: result: none
configure:5471: checking build system type
configure:5485: result: x86_64-pc-linux-gnu
configure:5505: checking host system type
configure:5514: error: /bin/bash autostuff/config.sub arm-buildroot-uclinux-uclibcgnueabi failed

## ---------------- ##
## Cache variables. ##
## ---------------- ##

ac_cv_build=x86_64-pc-linux-gnu
ac_cv_c_bigendian=no
ac_cv_c_compiler_gnu=yes
ac_cv_cxx_compiler_gnu=yes
ac_cv_env_CCC_set=
ac_cv_env_CCC_value=
ac_cv_env_CC_set=set
ac_cv_env_CC_value=/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc
ac_cv_env_CFLAGS_set=set
ac_cv_env_CFLAGS_value='-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os    -Wl,-elf2flt -static'
ac_cv_env_CPPFLAGS_set=set
ac_cv_env_CPPFLAGS_value='-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64'
ac_cv_env_CPP_set=set
ac_cv_env_CPP_value=/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-cpp
ac_cv_env_CXXCPP_set=
ac_cv_env_CXXCPP_value=
ac_cv_env_CXXFLAGS_set=set
ac_cv_env_CXXFLAGS_value='-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os    -Wl,-elf2flt -static  -Wl,-elf2flt -static'
ac_cv_env_CXX_set=set
ac_cv_env_CXX_value=/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-g++
ac_cv_env_KMOD_CFLAGS_set=
ac_cv_env_KMOD_CFLAGS_value=
ac_cv_env_KMOD_LIBS_set=
ac_cv_env_KMOD_LIBS_value=
ac_cv_env_LDFLAGS_set=set
ac_cv_env_LDFLAGS_value=' -Wl,-elf2flt -static'
ac_cv_env_LIBS_set=
ac_cv_env_LIBS_value=
ac_cv_env_LT_SYS_LIBRARY_PATH_set=
ac_cv_env_LT_SYS_LIBRARY_PATH_value=
ac_cv_env_PKG_CONFIG_LIBDIR_set=
ac_cv_env_PKG_CONFIG_LIBDIR_value=
ac_cv_env_PKG_CONFIG_PATH_set=
ac_cv_env_PKG_CONFIG_PATH_value=
ac_cv_env_PKG_CONFIG_set=set
ac_cv_env_PKG_CONFIG_value=/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/pkg-config
ac_cv_env_PYTHON_CPPFLAGS_set=
ac_cv_env_PYTHON_CPPFLAGS_value=
ac_cv_env_PYTHON_LIBS_set=
ac_cv_env_PYTHON_LIBS_value=
ac_cv_env_PYTHON_set=
ac_cv_env_PYTHON_value=
ac_cv_env_UDEV_CFLAGS_set=
ac_cv_env_UDEV_CFLAGS_value=
ac_cv_env_UDEV_LIBS_set=
ac_cv_env_UDEV_LIBS_value=
ac_cv_env_build_alias_set=set
ac_cv_env_build_alias_value=x86_64-pc-linux-gnu
ac_cv_env_host_alias_set=set
ac_cv_env_host_alias_value=arm-buildroot-uclinux-uclibcgnueabi
ac_cv_env_target_alias_set=set
ac_cv_env_target_alias_value=arm-buildroot-uclinux-uclibcgnueabi
ac_cv_func_calloc_0_nonnull=yes
ac_cv_func_malloc_0_nonnull=yes
ac_cv_func_memcmp_working=yes
ac_cv_func_mmap_fixed_mapped=yes
ac_cv_func_realloc_0_nonnull=yes
ac_cv_have_decl_malloc=yes
ac_cv_host=
ac_cv_lbl_unaligned_fail=yes
ac_cv_objext=o
ac_cv_path_install='/usr/bin/install -c'
ac_cv_path_mkdir=/bin/mkdir
ac_cv_prog_AR=/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-ar
ac_cv_prog_AWK=gawk
ac_cv_prog_CC=/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc
ac_cv_prog_STRIP=/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-strip
ac_cv_prog_cc_c89=
ac_cv_prog_cc_g=yes
ac_cv_prog_cxx_g=yes
ac_cv_prog_make_make_set=yes
am_cv_CC_dependencies_compiler_type=none
am_cv_CXX_dependencies_compiler_type=none
am_cv_ar_interface=ar
am_cv_make_support_nested_variables=yes
am_cv_prog_cc_c_o=yes
gl_cv_func_malloc_0_nonnull=yes
lt_cv_sys_lib_search_path_spec=

## ----------------- ##
## Output variables. ##
## ----------------- ##

ABI_CXX_VERSION='1.3.0'
ABI_MOCKUP_VERSION=''
ABI_VERSION='3.1.1'
ACLOCAL='${SHELL} /nvme/rc-buildroot-test/scripts/instance-0/output-1/build/libgpiod-1.4.1/autostuff/missing aclocal-1.16'
AMDEPBACKSLASH=''
AMDEP_FALSE=''
AMDEP_TRUE='#'
AMTAR='$${TAR-tar}'
AM_BACKSLASH='\'
AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
AM_DEFAULT_VERBOSITY='0'
AM_V='$(V)'
AR='/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-ar'
AR_FLAGS='cr'
AUTOCONF='${SHELL} /nvme/rc-buildroot-test/scripts/instance-0/output-1/build/libgpiod-1.4.1/autostuff/missing autoconf'
AUTOHEADER='${SHELL} /nvme/rc-buildroot-test/scripts/instance-0/output-1/build/libgpiod-1.4.1/autostuff/missing autoheader'
AUTOMAKE='${SHELL} /nvme/rc-buildroot-test/scripts/instance-0/output-1/build/libgpiod-1.4.1/autostuff/missing automake-1.16'
AWK='gawk'
CC='/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc'
CCDEPMODE='depmode=none'
CFLAGS='-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os    -Wl,-elf2flt -static'
CPP='/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-cpp'
CPPFLAGS='-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64'
CXX='/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-g++'
CXXCPP=''
CXXDEPMODE='depmode=none'
CXXFLAGS='-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os    -Wl,-elf2flt -static  -Wl,-elf2flt -static'
CYGPATH_W='echo'
DEFS=''
DEPDIR='.deps'
DLLTOOL=''
DSYMUTIL=''
DUMPBIN=''
ECHO_C=''
ECHO_N='-n'
ECHO_T=''
EGREP=''
EXEEXT=''
EXTRA_VERSION=''
FGREP=''
GREP=''
HAS_DOXYGEN_FALSE=''
HAS_DOXYGEN_TRUE=''
HAVE_CXX11=''
INSTALL_DATA='${INSTALL} -m 644'
INSTALL_PROGRAM='${INSTALL}'
INSTALL_SCRIPT='${INSTALL}'
INSTALL_STRIP_PROGRAM='$(install_sh) -c -s'
KMOD_CFLAGS=''
KMOD_LIBS=''
LD='/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-ld'
LDFLAGS=' -Wl,-elf2flt -static'
LIBOBJS=''
LIBS=''
LIBTOOL=''
LIPO=''
LN_S=''
LTLIBOBJS=''
LT_SYS_LIBRARY_PATH=''
MAKEINFO='${SHELL} /nvme/rc-buildroot-test/scripts/instance-0/output-1/build/libgpiod-1.4.1/autostuff/missing makeinfo'
MANIFEST_TOOL=''
MKDIR_P='/bin/mkdir -p'
NM='/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-nm'
NMEDIT=''
OBJDUMP='/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-objdump'
OBJEXT='o'
OTOOL64=''
OTOOL=''
PACKAGE='libgpiod'
PACKAGE_BUGREPORT=''
PACKAGE_NAME='libgpiod'
PACKAGE_STRING='libgpiod 1.4.1'
PACKAGE_TARNAME='libgpiod'
PACKAGE_URL=''
PACKAGE_VERSION='1.4.1'
PATH_SEPARATOR=':'
PKG_CONFIG='/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/pkg-config'
PKG_CONFIG_LIBDIR=''
PKG_CONFIG_PATH=''
PYTHON=''
PYTHON_CPPFLAGS=''
PYTHON_EXEC_PREFIX=''
PYTHON_LIBS=''
PYTHON_PLATFORM=''
PYTHON_PREFIX=''
PYTHON_VERSION=''
RANLIB='/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-ranlib'
SED=''
SET_MAKE=''
SHELL='/bin/bash'
STRIP='/nvme/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-strip'
UDEV_CFLAGS=''
UDEV_LIBS=''
VERSION='1.4.1'
VERSION_STR='1.4.1'
WITH_BINDINGS_CXX_FALSE=''
WITH_BINDINGS_CXX_TRUE=''
WITH_BINDINGS_PYTHON_FALSE=''
WITH_BINDINGS_PYTHON_TRUE=''
WITH_MANPAGES_FALSE=''
WITH_MANPAGES_TRUE=''
WITH_TESTS_FALSE=''
WITH_TESTS_TRUE=''
WITH_TOOLS_FALSE=''
WITH_TOOLS_TRUE=''
ac_ct_AR=''
ac_ct_CC=''
ac_ct_CXX=''
ac_ct_DUMPBIN=''
am__EXEEXT_FALSE=''
am__EXEEXT_TRUE=''
am__fastdepCC_FALSE=''
am__fastdepCC_TRUE='#'
am__fastdepCXX_FALSE=''
am__fastdepCXX_TRUE='#'
am__include='include'
am__isrc=''
am__leading_dot='.'
am__nodep=''
am__quote=''
am__tar='$${TAR-tar} chof - "$$tardir"'
am__untar='$${TAR-tar} xf -'
bindir='${exec_prefix}/bin'
build='x86_64-pc-linux-gnu'
build_alias='x86_64-pc-linux-gnu'
build_cpu='x86_64'
build_os='linux-gnu'
build_vendor='pc'
datadir='${datarootdir}'
datarootdir='${prefix}/share'
docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
dvidir='${docdir}'
exec_prefix='/usr'
has_doxygen=''
has_help2man=''
host='arm-buildroot-uclinux-uclibcgnueabi'
host_alias='arm-buildroot-uclinux-uclibcgnueabi'
host_cpu=''
host_os=''
host_vendor=''
htmldir='${docdir}'
includedir='${prefix}/include'
infodir='${datarootdir}/info'
install_sh='${SHELL} /nvme/rc-buildroot-test/scripts/instance-0/output-1/build/libgpiod-1.4.1/autostuff/install-sh'
libdir='${exec_prefix}/lib'
libexecdir='${exec_prefix}/libexec'
localedir='${datarootdir}/locale'
localstatedir='/var'
mandir='${datarootdir}/man'
mkdir_p='$(MKDIR_P)'
oldincludedir='/usr/include'
pdfdir='${docdir}'
pkgpyexecdir=''
pkgpythondir=''
prefix='/usr'
program_transform_name='s&^&&'
psdir='${docdir}'
pyexecdir=''
pythondir=''
runstatedir='${localstatedir}/run'
sbindir='${exec_prefix}/sbin'
sharedstatedir='${prefix}/com'
sysconfdir='/etc'
target_alias='arm-buildroot-uclinux-uclibcgnueabi'

## ----------- ##
## confdefs.h. ##
## ----------- ##

/* confdefs.h */
#define PACKAGE_NAME "libgpiod"
#define PACKAGE_TARNAME "libgpiod"
#define PACKAGE_VERSION "1.4.1"
#define PACKAGE_STRING "libgpiod 1.4.1"
#define PACKAGE_BUGREPORT ""
#define PACKAGE_URL ""
#define GPIOD_VERSION_STR "1.4.1"
#define PACKAGE "libgpiod"
#define VERSION "1.4.1"
#define _GNU_SOURCE /**/

configure: exit 1