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

It was created by mbuffer configure 20191016, which was
generated by GNU Autoconf 2.69.  Invocation command line was

  $ ./configure --target=arm-buildroot-linux-uclibcgnueabihf --host=arm-buildroot-linux-uclibcgnueabihf --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 --disable-static --enable-shared --disable-debug

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

hostname = u1804
uname -m = x86_64
uname -r = 4.15.0-96-generic
uname -s = Linux
uname -v = #97-Ubuntu SMP Wed Apr 1 03:25:46 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/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin
PATH: /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/sbin
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


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

configure:2289: checking build system type
configure:2303: result: x86_64-pc-linux-gnu
configure:2323: checking host system type
configure:2336: result: arm-buildroot-linux-uclibcgnueabihf
configure:2356: checking target system type
configure:2369: result: arm-buildroot-linux-uclibcgnueabihf
configure:2429: checking for arm-buildroot-linux-uclibcgnueabihf-gcc
configure:2456: result: /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc
configure:2725: checking for C compiler version
configure:2734: /home/rclinux/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:2745: $? = 0
configure:2734: /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc -v >&5
Using built-in specs.
COLLECT_GCC=/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/arm-linux-gcc.br_real
COLLECT_LTO_WRAPPER=/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../libexec/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/lto-wrapper
Target: arm-buildroot-linux-uclibcgnueabihf
Configured with: ./configure --prefix=/opt/br-arm11-full-nothread-2020.02 --sysconfdir=/opt/br-arm11-full-nothread-2020.02/etc --enable-static --target=arm-buildroot-linux-uclibcgnueabihf --with-sysroot=/opt/br-arm11-full-nothread-2020.02/arm-buildroot-linux-uclibcgnueabihf/sysroot --enable-__cxa_atexit --with-gnu-ld --disable-libssp --disable-multilib --disable-decimal-float --with-gmp=/opt/br-arm11-full-nothread-2020.02 --with-mpc=/opt/br-arm11-full-nothread-2020.02 --with-mpfr=/opt/br-arm11-full-nothread-2020.02 --with-pkgversion='Buildroot 2020.02' --with-bugurl=http://bugs.buildroot.net/ --disable-libquadmath --disable-libsanitizer --disable-tls --disable-threads --disable-libitm --disable-libatomic --without-isl --without-cloog --with-abi=aapcs-linux --with-cpu=arm1176jzf-s --with-fpu=vfp --with-float=hard --with-mode=arm --enable-languages=c,c++ --with-build-time-tools=/opt/br-arm11-full-nothread-2020.02/arm-buildroot-linux-uclibcgnueabihf/bin --enable-shared --disable-libgomp
Thread model: single
gcc version 8.3.0 (Buildroot 2020.02) 
COMPILER_PATH=/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../libexec/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/:/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../libexec/gcc/:/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/../../../../arm-buildroot-linux-uclibcgnueabihf/bin/
LIBRARY_PATH=/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/:/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/:/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/../../../../arm-buildroot-linux-uclibcgnueabihf/lib/:/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/lib/:/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/lib/
COLLECT_GCC_OPTIONS='-mabi=aapcs-linux' '-mfpu=vfp' '-marm' '-mfloat-abi=hard' '-mcpu=arm1176jzf-s' '-fPIE' '-pie' '-v' '-mtls-dialect=gnu' '-march=armv6kz+fp'
... rest of stderr output deleted ...
configure:2745: $? = 1
configure:2734: /home/rclinux/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:2745: $? = 1
configure:2734: /home/rclinux/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:2745: $? = 1
configure:2765: checking whether the C compiler works
configure:2787: /home/rclinux/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   -std=c99 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  conftest.c  >&5
configure:2791: $? = 0
configure:2839: result: yes
configure:2842: checking for C compiler default output file name
configure:2844: result: a.out
configure:2850: checking for suffix of executables
configure:2857: /home/rclinux/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   -std=c99 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  conftest.c  >&5
configure:2861: $? = 0
configure:2883: result: 
configure:2905: checking whether we are cross compiling
configure:2943: result: yes
configure:2948: checking for suffix of object files
configure:2970: /home/rclinux/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   -std=c99 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:2974: $? = 0
configure:2995: result: o
configure:2999: checking whether we are using the GNU C compiler
configure:3018: /home/rclinux/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   -std=c99 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:3018: $? = 0
configure:3027: result: yes
configure:3036: checking whether /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc accepts -g
configure:3056: /home/rclinux/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:3056: $? = 0
configure:3097: result: yes
configure:3114: checking for /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc option to accept ISO C89
configure:3177: /home/rclinux/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   -std=c99 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:3177: $? = 0
configure:3190: result: none needed
configure:3210: checking for /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc option to accept ISO C99
configure:3359: /home/rclinux/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   -std=c99 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:3359: $? = 0
configure:3372: result: none needed
configure:3397: checking for arm-buildroot-linux-uclibcgnueabihf-cc
configure:3424: result: /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc
configure:3499: checking for C compiler version
configure:3508: /home/rclinux/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:3519: $? = 0
configure:3508: /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc -v >&5
Using built-in specs.
COLLECT_GCC=/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/arm-linux-gcc.br_real
COLLECT_LTO_WRAPPER=/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../libexec/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/lto-wrapper
Target: arm-buildroot-linux-uclibcgnueabihf
Configured with: ./configure --prefix=/opt/br-arm11-full-nothread-2020.02 --sysconfdir=/opt/br-arm11-full-nothread-2020.02/etc --enable-static --target=arm-buildroot-linux-uclibcgnueabihf --with-sysroot=/opt/br-arm11-full-nothread-2020.02/arm-buildroot-linux-uclibcgnueabihf/sysroot --enable-__cxa_atexit --with-gnu-ld --disable-libssp --disable-multilib --disable-decimal-float --with-gmp=/opt/br-arm11-full-nothread-2020.02 --with-mpc=/opt/br-arm11-full-nothread-2020.02 --with-mpfr=/opt/br-arm11-full-nothread-2020.02 --with-pkgversion='Buildroot 2020.02' --with-bugurl=http://bugs.buildroot.net/ --disable-libquadmath --disable-libsanitizer --disable-tls --disable-threads --disable-libitm --disable-libatomic --without-isl --without-cloog --with-abi=aapcs-linux --with-cpu=arm1176jzf-s --with-fpu=vfp --with-float=hard --with-mode=arm --enable-languages=c,c++ --with-build-time-tools=/opt/br-arm11-full-nothread-2020.02/arm-buildroot-linux-uclibcgnueabihf/bin --enable-shared --disable-libgomp
Thread model: single
gcc version 8.3.0 (Buildroot 2020.02) 
COMPILER_PATH=/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../libexec/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/:/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../libexec/gcc/:/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/../../../../arm-buildroot-linux-uclibcgnueabihf/bin/
LIBRARY_PATH=/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/:/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/:/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/../../../../arm-buildroot-linux-uclibcgnueabihf/lib/:/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/lib/:/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/lib/
COLLECT_GCC_OPTIONS='-mabi=aapcs-linux' '-mfpu=vfp' '-marm' '-mfloat-abi=hard' '-mcpu=arm1176jzf-s' '-fPIE' '-pie' '-v' '-mtls-dialect=gnu' '-march=armv6kz+fp'
... rest of stderr output deleted ...
configure:3519: $? = 1
configure:3508: /home/rclinux/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:3519: $? = 1
configure:3508: /home/rclinux/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:3519: $? = 1
configure:3523: checking whether we are using the GNU C compiler
configure:3551: result: yes
configure:3560: checking whether /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc accepts -g
configure:3621: result: yes
configure:3638: checking for /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc option to accept ISO C89
configure:3714: result: none needed
configure:3735: checking for C/C++ restrict keyword
configure:3760: /home/rclinux/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   -std=c99 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:3760: $? = 0
configure:3768: result: __restrict
configure:3781: checking for inline
configure:3797: /home/rclinux/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   -std=c99 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:3797: $? = 0
configure:3805: result: inline
configure:3920: checking whether /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc provides -Wunused-result
configure:3933: /home/rclinux/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   -std=c99 -Wno-unused-result -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:3933: $? = 0
configure:3934: result: yes
configure:3960: checking for a BSD-compatible install
configure:4028: result: /usr/bin/install -c
configure:4041: checking for bash
configure:4059: found /bin/bash
configure:4071: result: /bin/bash
configure:4081: checking for rm
configure:4099: found /bin/rm
configure:4111: result: /bin/rm
configure:4121: checking for cp
configure:4139: found /bin/cp
configure:4151: result: /bin/cp
configure:4161: checking for mt
configure:4179: found /bin/mt
configure:4193: result: /bin/mt
configure:4205: checking for gtar
configure:4238: result: no
configure:4205: checking for tar
configure:4223: found /bin/tar
configure:4235: result: /bin/tar
configure:4248: checking for awk
configure:4266: found /usr/bin/awk
configure:4278: result: /usr/bin/awk
configure:4290: checking for objdump
configure:4320: result: /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-objdump
configure:4338: checking for special C compiler options needed for large files
configure:4383: result: no
configure:4389: checking for _FILE_OFFSET_BITS value needed for large files
configure:4414: /home/rclinux/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   -std=c99 -Wno-unused-result -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:4414: $? = 0
configure:4446: result: no
configure:4536: checking how to run the C preprocessor
configure:4606: result: /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-cpp
configure:4626: /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-cpp -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c
configure:4626: $? = 0
configure:4640: /home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-cpp -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c
conftest.c:10:10: fatal error: ac_nonexistent.h: No such file or directory
 #include <ac_nonexistent.h>
          ^~~~~~~~~~~~~~~~~~
compilation terminated.
configure:4640: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "mbuffer"
| #define PACKAGE_TARNAME "mbuffer"
| #define PACKAGE_VERSION "20191016"
| #define PACKAGE_STRING "mbuffer 20191016"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL ""
| #define restrict __restrict
| /* end confdefs.h.  */
| #include <ac_nonexistent.h>
configure:4669: checking for grep that handles long lines and -e
configure:4727: result: /bin/grep
configure:4732: checking for egrep
configure:4794: result: /bin/grep -E
configure:4799: checking for ANSI C header files
configure:4819: /home/rclinux/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   -std=c99 -Wno-unused-result -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:4819: $? = 0
configure:4903: result: yes
configure:4916: checking for sys/types.h
configure:4916: /home/rclinux/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   -std=c99 -Wno-unused-result -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:4916: $? = 0
configure:4916: result: yes
configure:4916: checking for sys/stat.h
configure:4916: /home/rclinux/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   -std=c99 -Wno-unused-result -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:4916: $? = 0
configure:4916: result: yes
configure:4916: checking for stdlib.h
configure:4916: /home/rclinux/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   -std=c99 -Wno-unused-result -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:4916: $? = 0
configure:4916: result: yes
configure:4916: checking for string.h
configure:4916: /home/rclinux/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   -std=c99 -Wno-unused-result -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:4916: $? = 0
configure:4916: result: yes
configure:4916: checking for memory.h
configure:4916: /home/rclinux/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   -std=c99 -Wno-unused-result -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:4916: $? = 0
configure:4916: result: yes
configure:4916: checking for strings.h
configure:4916: /home/rclinux/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   -std=c99 -Wno-unused-result -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:4916: $? = 0
configure:4916: result: yes
configure:4916: checking for inttypes.h
configure:4916: /home/rclinux/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   -std=c99 -Wno-unused-result -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:4916: $? = 0
configure:4916: result: yes
configure:4916: checking for stdint.h
configure:4916: /home/rclinux/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   -std=c99 -Wno-unused-result -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:4916: $? = 0
configure:4916: result: yes
configure:4916: checking for unistd.h
configure:4916: /home/rclinux/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   -std=c99 -Wno-unused-result -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:4916: $? = 0
configure:4916: result: yes
configure:4928: checking for struct stat.st_blksize
configure:4928: /home/rclinux/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   -std=c99 -Wno-unused-result -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 conftest.c >&5
configure:4928: $? = 0
configure:4928: result: yes
configure:4947: checking whether to enable assertions
configure:4965: result: yes
configure:4968: checking for pthread_mutex_init in -lpthread
configure:4993: /home/rclinux/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   -std=c99 -Wno-unused-result -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  conftest.c -lpthread   >&5
/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/../../../../arm-buildroot-linux-uclibcgnueabihf/bin/ld: cannot find -lpthread
collect2: error: ld returned 1 exit status
configure:4993: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "mbuffer"
| #define PACKAGE_TARNAME "mbuffer"
| #define PACKAGE_VERSION "20191016"
| #define PACKAGE_STRING "mbuffer 20191016"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL ""
| #define restrict __restrict
| #define STDC_HEADERS 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRING_H 1
| #define HAVE_MEMORY_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_STDINT_H 1
| #define HAVE_UNISTD_H 1
| #define HAVE_STRUCT_STAT_ST_BLKSIZE 1
| #define HAVE_ST_BLKSIZE 1
| /* end confdefs.h.  */
| 
| /* Override any GCC internal prototype to avoid an error.
|    Use char because int might match the return type of a GCC
|    builtin and then its argument prototype would still apply.  */
| #ifdef __cplusplus
| extern "C"
| #endif
| char pthread_mutex_init ();
| int
| main ()
| {
| return pthread_mutex_init ();
|   ;
|   return 0;
| }
configure:5002: result: no
configure:5013: checking for library containing dlsym
configure:5044: /home/rclinux/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   -std=c99 -Wno-unused-result -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  conftest.c  >&5
configure:5044: $? = 0
configure:5061: result: none required
configure:5069: checking for library containing clock_gettime
configure:5100: /home/rclinux/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   -std=c99 -Wno-unused-result -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  conftest.c  >&5
configure:5100: $? = 0
configure:5117: result: none required
configure:5127: checking for library containing sem_init
configure:5158: /home/rclinux/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   -std=c99 -Wno-unused-result -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  conftest.c  >&5
/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/../../../../arm-buildroot-linux-uclibcgnueabihf/bin/ld: /tmp/ccnJJuEj.o: in function `main':
conftest.c:(.text.startup+0x4): undefined reference to `sem_init'
collect2: error: ld returned 1 exit status
configure:5158: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "mbuffer"
| #define PACKAGE_TARNAME "mbuffer"
| #define PACKAGE_VERSION "20191016"
| #define PACKAGE_STRING "mbuffer 20191016"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL ""
| #define restrict __restrict
| #define STDC_HEADERS 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRING_H 1
| #define HAVE_MEMORY_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_STDINT_H 1
| #define HAVE_UNISTD_H 1
| #define HAVE_STRUCT_STAT_ST_BLKSIZE 1
| #define HAVE_ST_BLKSIZE 1
| /* end confdefs.h.  */
| 
| /* Override any GCC internal prototype to avoid an error.
|    Use char because int might match the return type of a GCC
|    builtin and then its argument prototype would still apply.  */
| #ifdef __cplusplus
| extern "C"
| #endif
| char sem_init ();
| int
| main ()
| {
| return sem_init ();
|   ;
|   return 0;
| }
configure:5158: /home/rclinux/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   -std=c99 -Wno-unused-result -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  conftest.c -lrt   >&5
/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/../../../../arm-buildroot-linux-uclibcgnueabihf/bin/ld: /tmp/ccJAhTPn.o: in function `main':
conftest.c:(.text.startup+0x4): undefined reference to `sem_init'
collect2: error: ld returned 1 exit status
configure:5158: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "mbuffer"
| #define PACKAGE_TARNAME "mbuffer"
| #define PACKAGE_VERSION "20191016"
| #define PACKAGE_STRING "mbuffer 20191016"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL ""
| #define restrict __restrict
| #define STDC_HEADERS 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRING_H 1
| #define HAVE_MEMORY_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_STDINT_H 1
| #define HAVE_UNISTD_H 1
| #define HAVE_STRUCT_STAT_ST_BLKSIZE 1
| #define HAVE_ST_BLKSIZE 1
| /* end confdefs.h.  */
| 
| /* Override any GCC internal prototype to avoid an error.
|    Use char because int might match the return type of a GCC
|    builtin and then its argument prototype would still apply.  */
| #ifdef __cplusplus
| extern "C"
| #endif
| char sem_init ();
| int
| main ()
| {
| return sem_init ();
|   ;
|   return 0;
| }
configure:5158: /home/rclinux/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   -std=c99 -Wno-unused-result -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  conftest.c -lposix   >&5
/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/arm-buildroot-linux-uclibcgnueabihf/8.3.0/../../../../arm-buildroot-linux-uclibcgnueabihf/bin/ld: cannot find -lposix
collect2: error: ld returned 1 exit status
configure:5158: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "mbuffer"
| #define PACKAGE_TARNAME "mbuffer"
| #define PACKAGE_VERSION "20191016"
| #define PACKAGE_STRING "mbuffer 20191016"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL ""
| #define restrict __restrict
| #define STDC_HEADERS 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRING_H 1
| #define HAVE_MEMORY_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_STDINT_H 1
| #define HAVE_UNISTD_H 1
| #define HAVE_STRUCT_STAT_ST_BLKSIZE 1
| #define HAVE_ST_BLKSIZE 1
| /* end confdefs.h.  */
| 
| /* Override any GCC internal prototype to avoid an error.
|    Use char because int might match the return type of a GCC
|    builtin and then its argument prototype would still apply.  */
| #ifdef __cplusplus
| extern "C"
| #endif
| char sem_init ();
| int
| main ()
| {
| return sem_init ();
|   ;
|   return 0;
| }
configure:5175: result: no
configure:5182: error: could not find semaphore functions!

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

ac_cv_build=x86_64-pc-linux-gnu
ac_cv_c_bigendian=no
ac_cv_c_compiler_gnu=yes
ac_cv_c_inline=inline
ac_cv_c_restrict=__restrict
ac_cv_env_CC_set=set
ac_cv_env_CC_value=/home/rclinux/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   -std=c99'
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=/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-cpp
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-pc-linux-gnu
ac_cv_env_host_alias_set=set
ac_cv_env_host_alias_value=arm-buildroot-linux-uclibcgnueabihf
ac_cv_env_target_alias_set=set
ac_cv_env_target_alias_value=arm-buildroot-linux-uclibcgnueabihf
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_header_inttypes_h=yes
ac_cv_header_memory_h=yes
ac_cv_header_stdc=yes
ac_cv_header_stdint_h=yes
ac_cv_header_stdlib_h=yes
ac_cv_header_string_h=yes
ac_cv_header_strings_h=yes
ac_cv_header_sys_stat_h=yes
ac_cv_header_sys_types_h=yes
ac_cv_header_unistd_h=yes
ac_cv_host=arm-buildroot-linux-uclibcgnueabihf
ac_cv_lbl_unaligned_fail=yes
ac_cv_lib_pthread_pthread_mutex_init=no
ac_cv_member_struct_stat_st_blksize=yes
ac_cv_objext=o
ac_cv_path_AWK=/usr/bin/awk
ac_cv_path_CP=/bin/cp
ac_cv_path_EGREP='/bin/grep -E'
ac_cv_path_GREP=/bin/grep
ac_cv_path_MT=/bin/mt
ac_cv_path_OBJDUMP=/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-objdump
ac_cv_path_RM=/bin/rm
ac_cv_path_SH=/bin/bash
ac_cv_path_TAR=/bin/tar
ac_cv_path_install='/usr/bin/install -c'
ac_cv_prog_CC=/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc
ac_cv_prog_CPP=/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-cpp
ac_cv_prog_cc_c89=
ac_cv_prog_cc_c99=
ac_cv_prog_cc_g=yes
ac_cv_search_clock_gettime='none required'
ac_cv_search_dlsym='none required'
ac_cv_search_sem_init=no
ac_cv_sys_file_offset_bits=no
ac_cv_sys_largefile_CC=no
ac_cv_target=arm-buildroot-linux-uclibcgnueabihf
gl_cv_func_malloc_0_nonnull=yes
lt_cv_sys_lib_search_path_spec=

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

ALLOCA=''
AUTOCONF=''
AWK='/usr/bin/awk'
CC='/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-gcc'
CFLAGS='-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os   -std=c99 -Wno-unused-result'
CP='/bin/cp'
CPP='/home/rclinux/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'
DEBUG=''
DEFS=''
ECHO_C=''
ECHO_N='-n'
ECHO_T=''
EGREP='/bin/grep -E'
EXEEXT=''
GREP='/bin/grep'
INSTALL_DATA='${INSTALL} -m 644'
INSTALL_PROGRAM='${INSTALL}'
INSTALL_SCRIPT='${INSTALL}'
LDFLAGS=''
LIBOBJS=''
LIBS=''
LTLIBOBJS=''
MT='/bin/mt'
OBJDUMP='/home/rclinux/rc-buildroot-test/scripts/instance-0/output-1/host/bin/arm-linux-objdump'
OBJEXT='o'
PACKAGE_BUGREPORT=''
PACKAGE_NAME='mbuffer'
PACKAGE_STRING='mbuffer 20191016'
PACKAGE_TARNAME='mbuffer'
PACKAGE_URL=''
PACKAGE_VERSION='20191016'
PATH_SEPARATOR=':'
RM='/bin/rm'
SH='/bin/bash'
SHELL='/bin/bash'
TAR='/bin/tar'
ac_ct_CC=''
bindir='${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='${docdir}'
exec_prefix='/usr'
host='arm-buildroot-linux-uclibcgnueabihf'
host_alias='arm-buildroot-linux-uclibcgnueabihf'
host_cpu='arm'
host_os='linux-uclibcgnueabihf'
host_vendor='buildroot'
htmldir='${docdir}'
includedir='${prefix}/include'
infodir='${datarootdir}/info'
libdir='${exec_prefix}/lib'
libexecdir='${exec_prefix}/libexec'
localedir='${datarootdir}/locale'
localstatedir='/var'
mandir='${datarootdir}/man'
oldincludedir='/usr/include'
pdfdir='${docdir}'
prefix='/usr'
program_transform_name='s,x,x,'
psdir='${docdir}'
runstatedir='${localstatedir}/run'
sbindir='${exec_prefix}/sbin'
sharedstatedir='${prefix}/com'
sysconfdir='/etc'
target='arm-buildroot-linux-uclibcgnueabihf'
target_alias='arm-buildroot-linux-uclibcgnueabihf'
target_cpu='arm'
target_os='linux-uclibcgnueabihf'
target_vendor='buildroot'

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

/* confdefs.h */
#define PACKAGE_NAME "mbuffer"
#define PACKAGE_TARNAME "mbuffer"
#define PACKAGE_VERSION "20191016"
#define PACKAGE_STRING "mbuffer 20191016"
#define PACKAGE_BUGREPORT ""
#define PACKAGE_URL ""
#define restrict __restrict
#define STDC_HEADERS 1
#define HAVE_SYS_TYPES_H 1
#define HAVE_SYS_STAT_H 1
#define HAVE_STDLIB_H 1
#define HAVE_STRING_H 1
#define HAVE_MEMORY_H 1
#define HAVE_STRINGS_H 1
#define HAVE_INTTYPES_H 1
#define HAVE_STDINT_H 1
#define HAVE_UNISTD_H 1
#define HAVE_STRUCT_STAT_ST_BLKSIZE 1
#define HAVE_ST_BLKSIZE 1

configure: exit 1