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

It was created by libffi configure 3.4.2, which was
generated by GNU Autoconf 2.71.  Invocation command line was

  $ .././configure --srcdir=.. --enable-builddir=x86_64-pc-linux-gnu --prefix=/home/buildroot/autobuild/instance-3/output-1/host --sysconfdir=/home/buildroot/autobuild/instance-3/output-1/host/etc --localstatedir=/home/buildroot/autobuild/instance-3/output-1/host/var --enable-shared --disable-static --disable-gtk-doc --disable-gtk-doc-html --disable-doc --disable-docs --disable-documentation --disable-debug --with-xmlto=no --with-fop=no --disable-nls --disable-dependency-tracking CPPFLAGS=-I/home/buildroot/autobuild/instance-3/output-1/host/include

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

hostname = gcc159.bak.milne.osuosl.org
uname -m = x86_64
uname -r = 4.9.0-16-amd64
uname -s = Linux
uname -v = #1 SMP Debian 4.9.272-2 (2021-07-19)

/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/buildroot/autobuild/instance-3/output-1/host/bin/
PATH: /home/buildroot/autobuild/instance-3/output-1/host/sbin/
PATH: /usr/local/sbin/
PATH: /usr/local/bin/
PATH: /usr/sbin/
PATH: /usr/bin/
PATH: /sbin/
PATH: /bin/


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

configure:3071: looking for aux files: ltmain.sh compile missing install-sh config.guess config.sub
configure:3084:  trying ../
configure:3113:   ../ltmain.sh found
configure:3113:   ../compile found
configure:3113:   ../missing found
configure:3095:   ../install-sh found
configure:3113:   ../config.guess found
configure:3113:   ../config.sub found
configure:3234: checking build system type
configure:3249: result: x86_64-pc-linux-gnu
configure:3269: checking host system type
configure:3283: result: x86_64-pc-linux-gnu
configure:3303: checking target system type
configure:3317: result: x86_64-pc-linux-gnu
configure:3416: checking for gsed
configure:3452: result: sed
configure:3481: checking for a BSD-compatible install
configure:3554: result: /usr/bin/install -c
configure:3565: checking whether build environment is sane
configure:3620: result: yes
configure:3775: checking for a race-free mkdir -p
configure:3819: result: /bin/mkdir -p
configure:3826: checking for gawk
configure:3847: found /usr/bin/gawk
configure:3858: result: gawk
configure:3869: checking whether make sets $(MAKE)
configure:3892: result: yes
configure:3922: checking whether make supports nested variables
configure:3940: result: yes
configure:4149: checking for gcc
configure:4181: result: /usr/bin/gcc
configure:4534: checking for C compiler version
configure:4543: /usr/bin/gcc --version >&5
gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516
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:4554: $? = 0
configure:4543: /usr/bin/gcc -v >&5
Using built-in specs.
COLLECT_GCC=/usr/bin/gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/6/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 6.3.0-18+deb9u1' --with-bugurl=file:///usr/share/doc/gcc-6/README.Bugs --enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-6 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-6-amd64/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-6-amd64 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-6-amd64 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --with-target-system-zlib --enable-objc-gc=auto --enable-multiarch --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 6.3.0 20170516 (Debian 6.3.0-18+deb9u1) 
configure:4554: $? = 0
configure:4543: /usr/bin/gcc -V >&5
gcc: error: unrecognized command line option '-V'
gcc: fatal error: no input files
compilation terminated.
configure:4554: $? = 1
configure:4543: /usr/bin/gcc -qversion >&5
gcc: error: unrecognized command line option '-qversion'; did you mean '--version'?
gcc: fatal error: no input files
compilation terminated.
configure:4554: $? = 1
configure:4543: /usr/bin/gcc -version >&5
gcc: error: unrecognized command line option '-version'
gcc: fatal error: no input files
compilation terminated.
configure:4554: $? = 1
configure:4574: checking whether the C compiler works
configure:4596: /usr/bin/gcc -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include -L/home/buildroot/autobuild/instance-3/output-1/host/lib -Wl,-rpath,/home/buildroot/autobuild/instance-3/output-1/host/lib conftest.c  >&5
configure:4600: $? = 0
configure:4650: result: yes
configure:4653: checking for C compiler default output file name
configure:4655: result: a.out
configure:4661: checking for suffix of executables
configure:4668: /usr/bin/gcc -o conftest -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include -L/home/buildroot/autobuild/instance-3/output-1/host/lib -Wl,-rpath,/home/buildroot/autobuild/instance-3/output-1/host/lib conftest.c  >&5
configure:4672: $? = 0
configure:4695: result: 
configure:4717: checking whether we are cross compiling
configure:4725: /usr/bin/gcc -o conftest -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include -L/home/buildroot/autobuild/instance-3/output-1/host/lib -Wl,-rpath,/home/buildroot/autobuild/instance-3/output-1/host/lib conftest.c  >&5
configure:4729: $? = 0
configure:4736: ./conftest
configure:4740: $? = 0
configure:4755: result: no
configure:4760: checking for suffix of object files
configure:4783: /usr/bin/gcc -c -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.c >&5
configure:4787: $? = 0
configure:4809: result: o
configure:4813: checking whether the compiler supports GNU C
configure:4833: /usr/bin/gcc -c -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.c >&5
configure:4833: $? = 0
configure:4843: result: yes
configure:4854: checking whether /usr/bin/gcc accepts -g
configure:4875: /usr/bin/gcc -c -g -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.c >&5
configure:4875: $? = 0
configure:4919: result: yes
configure:4939: checking for /usr/bin/gcc option to enable C11 features
configure:4954: /usr/bin/gcc  -c -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.c >&5
configure:4954: $? = 0
configure:4972: result: none needed
configure:5088: checking whether /usr/bin/gcc understands -c and -o together
configure:5111: /usr/bin/gcc -c conftest.c -o conftest2.o
configure:5114: $? = 0
configure:5111: /usr/bin/gcc -c conftest.c -o conftest2.o
configure:5114: $? = 0
configure:5126: result: yes
configure:5146: checking whether make supports the include directive
configure:5161: make -f confmf.GNU && cat confinc.out
make[1]: Entering directory '/home/buildroot/autobuild/instance-3/output-1/build/host-libffi-3.4.2/x86_64-pc-linux-gnu'
make[1]: Leaving directory '/home/buildroot/autobuild/instance-3/output-1/build/host-libffi-3.4.2/x86_64-pc-linux-gnu'
this is the am__doit target
configure:5164: $? = 0
configure:5183: result: yes (GNU style)
configure:5209: checking dependency style of /usr/bin/gcc
configure:5321: result: none
configure:5464: checking for C++ compiler version
configure:5473: /usr/bin/g++ --version >&5
g++ (Debian 6.3.0-18+deb9u1) 6.3.0 20170516
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:5484: $? = 0
configure:5473: /usr/bin/g++ -v >&5
Using built-in specs.
COLLECT_GCC=/usr/bin/g++
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/6/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 6.3.0-18+deb9u1' --with-bugurl=file:///usr/share/doc/gcc-6/README.Bugs --enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-6 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-6-amd64/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-6-amd64 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-6-amd64 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --with-target-system-zlib --enable-objc-gc=auto --enable-multiarch --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 6.3.0 20170516 (Debian 6.3.0-18+deb9u1) 
configure:5484: $? = 0
configure:5473: /usr/bin/g++ -V >&5
g++: error: unrecognized command line option '-V'
g++: fatal error: no input files
compilation terminated.
configure:5484: $? = 1
configure:5473: /usr/bin/g++ -qversion >&5
g++: error: unrecognized command line option '-qversion'; did you mean '--version'?
g++: fatal error: no input files
compilation terminated.
configure:5484: $? = 1
configure:5488: checking whether the compiler supports GNU C++
configure:5508: /usr/bin/g++ -c -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.cpp >&5
configure:5508: $? = 0
configure:5518: result: yes
configure:5529: checking whether /usr/bin/g++ accepts -g
configure:5550: /usr/bin/g++ -c -g -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.cpp >&5
configure:5550: $? = 0
configure:5594: result: yes
configure:5614: checking for /usr/bin/g++ option to enable C++11 features
configure:5629: /usr/bin/g++  -c -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.cpp >&5
configure:5629: $? = 0
configure:5647: result: none needed
configure:5713: checking dependency style of /usr/bin/g++
configure:5825: result: none
configure:5855: checking dependency style of /usr/bin/gcc
configure:5965: result: none
configure:6028: checking how to print strings
configure:6055: result: printf
configure:6076: checking for a sed that does not truncate output
configure:6146: result: /bin/sed
configure:6164: checking for grep that handles long lines and -e
configure:6228: result: /bin/grep
configure:6233: checking for egrep
configure:6301: result: /bin/grep -E
configure:6306: checking for fgrep
configure:6374: result: /bin/grep -F
configure:6410: checking for ld used by /usr/bin/gcc
configure:6478: result: /usr/bin/ld
configure:6485: checking if the linker (/usr/bin/ld) is GNU ld
configure:6501: result: yes
configure:6513: checking for BSD- or MS-compatible name lister (nm)
configure:6568: result: /usr/bin/nm
configure:6708: checking the name lister (/usr/bin/nm) interface
configure:6716: /usr/bin/gcc -c -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.c >&5
configure:6719: /usr/bin/nm "conftest.o"
configure:6722: output
0000000000000000 B some_variable
configure:6729: result: BSD nm
configure:6732: checking whether ln -s works
configure:6736: result: yes
configure:6744: checking the maximum length of command line arguments
configure:6876: result: 1572864
configure:6924: checking how to convert x86_64-pc-linux-gnu file names to x86_64-pc-linux-gnu format
configure:6965: result: func_convert_file_noop
configure:6972: checking how to convert x86_64-pc-linux-gnu file names to toolchain format
configure:6993: result: func_convert_file_noop
configure:7000: checking for /usr/bin/ld option to reload object files
configure:7008: result: -r
configure:7087: checking for objdump
configure:7108: found /usr/bin/objdump
configure:7119: result: objdump
configure:7151: checking how to recognize dependent libraries
configure:7352: result: pass_all
configure:7442: checking for dlltool
configure:7477: result: no
configure:7507: checking how to associate runtime and link libraries
configure:7535: result: printf %s\n
configure:7670: checking for archiver @FILE support
configure:7688: /usr/bin/gcc -c -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.c >&5
configure:7688: $? = 0
configure:7692: /usr/bin/ar cru libconftest.a @conftest.lst >&5
/usr/bin/ar: `u' modifier ignored since `D' is the default (see `U')
configure:7695: $? = 0
configure:7700: /usr/bin/ar cru libconftest.a @conftest.lst >&5
/usr/bin/ar: `u' modifier ignored since `D' is the default (see `U')
/usr/bin/ar: conftest.o: No such file or directory
configure:7703: $? = 1
configure:7715: result: @
configure:7778: checking for strip
configure:7799: found /usr/bin/strip
configure:7810: result: strip
configure:7887: checking for ranlib
configure:7919: result: /usr/bin/ranlib
configure:8021: checking command to parse /usr/bin/nm output from /usr/bin/gcc object
configure:8175: /usr/bin/gcc -c -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.c >&5
configure:8178: $? = 0
configure:8182: /usr/bin/nm conftest.o \| sed -n -e 's/^.*[ ]\([ABCDGIRSTW][ABCDGIRSTW]*\)[ ][ ]*\([_A-Za-z][_A-Za-z0-9]*\)$/\1 \2 \2/p' | sed '/ __gnu_lto/d' \> conftest.nm
configure:8185: $? = 0
configure:8251: /usr/bin/gcc -o conftest -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include -L/home/buildroot/autobuild/instance-3/output-1/host/lib -Wl,-rpath,/home/buildroot/autobuild/instance-3/output-1/host/lib conftest.c conftstm.o >&5
configure:8254: $? = 0
configure:8292: result: ok
configure:8339: checking for sysroot
configure:8370: result: no
configure:8377: checking for a working dd
configure:8421: result: /bin/dd
configure:8425: checking how to truncate binary pipes
configure:8441: result: /bin/dd bs=4096 count=1
configure:8578: /usr/bin/gcc -c -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.c >&5
configure:8581: $? = 0
configure:8778: checking for mt
configure:8799: found /bin/mt
configure:8810: result: mt
configure:8833: checking if mt is a manifest tool
configure:8840: mt '-?'
configure:8848: result: no
configure:9578: checking for stdio.h
configure:9578: /usr/bin/gcc -c -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.c >&5
configure:9578: $? = 0
configure:9578: result: yes
configure:9578: checking for stdlib.h
configure:9578: /usr/bin/gcc -c -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.c >&5
configure:9578: $? = 0
configure:9578: result: yes
configure:9578: checking for string.h
configure:9578: /usr/bin/gcc -c -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.c >&5
configure:9578: $? = 0
configure:9578: result: yes
configure:9578: checking for inttypes.h
configure:9578: /usr/bin/gcc -c -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.c >&5
configure:9578: $? = 0
configure:9578: result: yes
configure:9578: checking for stdint.h
configure:9578: /usr/bin/gcc -c -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.c >&5
configure:9578: $? = 0
configure:9578: result: yes
configure:9578: checking for strings.h
configure:9578: /usr/bin/gcc -c -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.c >&5
configure:9578: $? = 0
configure:9578: result: yes
configure:9578: checking for sys/stat.h
configure:9578: /usr/bin/gcc -c -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.c >&5
configure:9578: $? = 0
configure:9578: result: yes
configure:9578: checking for sys/types.h
configure:9578: /usr/bin/gcc -c -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.c >&5
configure:9578: $? = 0
configure:9578: result: yes
configure:9578: checking for unistd.h
configure:9578: /usr/bin/gcc -c -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.c >&5
configure:9578: $? = 0
configure:9578: result: yes
configure:9603: checking for dlfcn.h
configure:9603: /usr/bin/gcc -c -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.c >&5
configure:9603: $? = 0
configure:9603: result: yes
configure:9873: checking for objdir
configure:9889: result: .libs
configure:10153: checking if /usr/bin/gcc supports -fno-rtti -fno-exceptions
configure:10172: /usr/bin/gcc -c -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include -fno-rtti -fno-exceptions conftest.c >&5
cc1: warning: command line option '-fno-rtti' is valid for C++/ObjC++ but not for C
configure:10176: $? = 0
configure:10189: result: no
configure:10547: checking for /usr/bin/gcc option to produce PIC
configure:10555: result: -fPIC -DPIC
configure:10563: checking if /usr/bin/gcc PIC flag -fPIC -DPIC works
configure:10582: /usr/bin/gcc -c -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include -fPIC -DPIC -DPIC conftest.c >&5
configure:10586: $? = 0
configure:10599: result: yes
configure:10628: checking if /usr/bin/gcc static flag -static works
configure:10657: result: yes
configure:10672: checking if /usr/bin/gcc supports -c -o file.o
configure:10694: /usr/bin/gcc -c -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include -o out/conftest2.o conftest.c >&5
configure:10698: $? = 0
configure:10720: result: yes
configure:10728: checking if /usr/bin/gcc supports -c -o file.o
configure:10776: result: yes
configure:10809: checking whether the /usr/bin/gcc linker (/usr/bin/ld -m elf_x86_64) supports shared libraries
configure:12075: result: yes
configure:12112: checking whether -lc should be explicitly linked in
configure:12121: /usr/bin/gcc -c -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.c >&5
configure:12124: $? = 0
configure:12139: /usr/bin/gcc -shared  -fPIC -DPIC conftest.o  -v -Wl,-soname -Wl,conftest -o conftest 2\>\&1 \| /bin/grep  -lc  \>/dev/null 2\>\&1
configure:12142: $? = 0
configure:12156: result: no
configure:12316: checking dynamic linker characteristics
configure:12898: /usr/bin/gcc -o conftest -O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include -I/home/buildroot/autobuild/instance-3/output-1/host/include -L/home/buildroot/autobuild/instance-3/output-1/host/lib -Wl,-rpath,/home/buildroot/autobuild/instance-3/output-1/host/lib -Wl,-rpath -Wl,/foo conftest.c  >&5
configure:12898: $? = 0
configure:13137: result: GNU/Linux ld.so
configure:13259: checking how to hardcode library paths into programs
configure:13284: result: immediate
configure:13836: checking whether stripping libraries is possible
configure:13841: result: yes
configure:13876: checking if libtool supports shared libraries
configure:13878: result: yes
configure:13881: checking whether to build shared libraries
configure:13906: result: yes
configure:13909: checking whether to build static libraries
configure:13913: result: no
configure:13936: checking how to run the C++ preprocessor
configure:13958: /usr/bin/g++ -E -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.cpp
configure:13958: $? = 0
configure:13973: /usr/bin/g++ -E -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.cpp
conftest.cpp:23:28: fatal error: ac_nonexistent.h: No such file or directory
 #include <ac_nonexistent.h>
                            ^
compilation terminated.
configure:13973: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "libffi"
| #define PACKAGE_TARNAME "libffi"
| #define PACKAGE_VERSION "3.4.2"
| #define PACKAGE_STRING "libffi 3.4.2"
| #define PACKAGE_BUGREPORT "http://github.com/libffi/libffi/issues"
| #define PACKAGE_URL ""
| #define PACKAGE "libffi"
| #define VERSION "3.4.2"
| #define HAVE_STDIO_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRING_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_STDINT_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_UNISTD_H 1
| #define STDC_HEADERS 1
| #define HAVE_DLFCN_H 1
| #define LT_OBJDIR ".libs/"
| /* end confdefs.h.  */
| #include <ac_nonexistent.h>
configure:14000: result: /usr/bin/g++ -E
configure:14014: /usr/bin/g++ -E -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.cpp
g++: error: conftest.cpp: No such file or directory
g++: fatal error: no input files
compilation terminated.
configure:14014: $? = 1
configure: failed program was:
configure:14014: /usr/bin/g++ -E -I/home/buildroot/autobuild/instance-3/output-1/host/include conftest.cpp
g++: error: conftest.cpp: No such file or directory
g++: fatal error: no input files
compilation terminated.
configure:14014: $? = 1
configure: failed program was:
configure:14047: error: in `/home/buildroot/autobuild/instance-3/output-1/build/host-libffi-3.4.2/x86_64-pc-linux-gnu':
configure:14049: error: C++ preprocessor "/usr/bin/g++ -E" fails sanity check
See `config.log' for more details

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

ac_cv_build=x86_64-pc-linux-gnu
ac_cv_c_compiler_gnu=yes
ac_cv_cxx_compiler_gnu=yes
ac_cv_env_CCASFLAGS_set=
ac_cv_env_CCASFLAGS_value=
ac_cv_env_CCAS_set=
ac_cv_env_CCAS_value=
ac_cv_env_CPPFLAGS_set=set
ac_cv_env_CPPFLAGS_value=-I/home/buildroot/autobuild/instance-3/output-1/host/include
ac_cv_env_CXXCPP_set=
ac_cv_env_CXXCPP_value=
ac_cv_env_LT_SYS_LIBRARY_PATH_set=
ac_cv_env_LT_SYS_LIBRARY_PATH_value=
ac_cv_env_build_alias_set=
ac_cv_env_build_alias_value=
ac_cv_env_host_alias_set=
ac_cv_env_host_alias_value=
ac_cv_env_target_alias_set=
ac_cv_env_target_alias_value=
ac_cv_header_dlfcn_h=yes
ac_cv_header_inttypes_h=yes
ac_cv_header_stdint_h=yes
ac_cv_header_stdio_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=x86_64-pc-linux-gnu
ac_cv_objext=o
ac_cv_path_EGREP='/bin/grep -E'
ac_cv_path_FGREP='/bin/grep -F'
ac_cv_path_GREP=/bin/grep
ac_cv_path_SED=/bin/sed
ac_cv_path_ax_enable_builddir_sed=sed
ac_cv_path_install='/usr/bin/install -c'
ac_cv_path_lt_DD=/bin/dd
ac_cv_path_mkdir=/bin/mkdir
ac_cv_prog_AWK=gawk
ac_cv_prog_CXXCPP='/usr/bin/g++ -E'
ac_cv_prog_ac_ct_CC=/usr/bin/gcc
ac_cv_prog_ac_ct_MANIFEST_TOOL=mt
ac_cv_prog_ac_ct_OBJDUMP=objdump
ac_cv_prog_ac_ct_RANLIB=/usr/bin/ranlib
ac_cv_prog_ac_ct_STRIP=strip
ac_cv_prog_cc_c11=
ac_cv_prog_cc_g=yes
ac_cv_prog_cc_stdc=
ac_cv_prog_cxx_11=no
ac_cv_prog_cxx_cxx11=
ac_cv_prog_cxx_g=yes
ac_cv_prog_cxx_stdcxx=
ac_cv_prog_make_make_set=yes
ac_cv_target=x86_64-pc-linux-gnu
am_cv_CCAS_dependencies_compiler_type=none
am_cv_CC_dependencies_compiler_type=none
am_cv_CXX_dependencies_compiler_type=none
am_cv_make_support_nested_variables=yes
am_cv_prog_cc_c_o=yes
lt_cv_ar_at_file=@
lt_cv_archive_cmds_need_lc=no
lt_cv_deplibs_check_method=pass_all
lt_cv_file_magic_cmd='$MAGIC_CMD'
lt_cv_file_magic_test_file=
lt_cv_ld_reload_flag=-r
lt_cv_nm_interface='BSD nm'
lt_cv_objdir=.libs
lt_cv_path_LD=/usr/bin/ld
lt_cv_path_NM=/usr/bin/nm
lt_cv_path_mainfest_tool=no
lt_cv_prog_compiler_c_o=yes
lt_cv_prog_compiler_pic='-fPIC -DPIC'
lt_cv_prog_compiler_pic_works=yes
lt_cv_prog_compiler_rtti_exceptions=no
lt_cv_prog_compiler_static_works=yes
lt_cv_prog_gnu_ld=yes
lt_cv_sharedlib_from_linklib_cmd='printf %s\n'
lt_cv_shlibpath_overrides_runpath=yes
lt_cv_sys_global_symbol_pipe='sed -n -e '\''s/^.*[	 ]\([ABCDGIRSTW][ABCDGIRSTW]*\)[	 ][	 ]*\([_A-Za-z][_A-Za-z0-9]*\)$/\1 \2 \2/p'\'' | sed '\''/ __gnu_lto/d'\'''
lt_cv_sys_global_symbol_to_c_name_address='sed -n -e '\''s/^: \(.*\) .*$/  {"\1", (void *) 0},/p'\'' -e '\''s/^[ABCDGIRSTW][ABCDGIRSTW]* .* \(.*\)$/  {"\1", (void *) \&\1},/p'\'''
lt_cv_sys_global_symbol_to_c_name_address_lib_prefix='sed -n -e '\''s/^: \(.*\) .*$/  {"\1", (void *) 0},/p'\'' -e '\''s/^[ABCDGIRSTW][ABCDGIRSTW]* .* \(lib.*\)$/  {"\1", (void *) \&\1},/p'\'' -e '\''s/^[ABCDGIRSTW][ABCDGIRSTW]* .* \(.*\)$/  {"lib\1", (void *) \&\1},/p'\'''
lt_cv_sys_global_symbol_to_cdecl='sed -n -e '\''s/^T .* \(.*\)$/extern int \1();/p'\'' -e '\''s/^[ABCDGIRSTW][ABCDGIRSTW]* .* \(.*\)$/extern char \1;/p'\'''
lt_cv_sys_global_symbol_to_import=
lt_cv_sys_max_cmd_len=1572864
lt_cv_to_host_file_cmd=func_convert_file_noop
lt_cv_to_tool_file_cmd=func_convert_file_noop
lt_cv_truncate_bin='/bin/dd bs=4096 count=1'

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

ACLOCAL='${SHELL} '\''/home/buildroot/autobuild/instance-3/output-1/build/host-libffi-3.4.2/missing'\'' aclocal-1.16'
ALLOCA=''
AMDEPBACKSLASH=''
AMDEP_FALSE=''
AMDEP_TRUE='#'
AMTAR='$${TAR-tar}'
AM_BACKSLASH='\'
AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
AM_DEFAULT_VERBOSITY='1'
AM_LTLDFLAGS=''
AM_RUNTESTFLAGS=''
AM_V='$(V)'
AR='/usr/bin/ar'
AUTOCONF='${SHELL} '\''/home/buildroot/autobuild/instance-3/output-1/build/host-libffi-3.4.2/missing'\'' autoconf'
AUTOHEADER='${SHELL} '\''/home/buildroot/autobuild/instance-3/output-1/build/host-libffi-3.4.2/missing'\'' autoheader'
AUTOMAKE='${SHELL} '\''/home/buildroot/autobuild/instance-3/output-1/build/host-libffi-3.4.2/missing'\'' automake-1.16'
AWK='gawk'
BUILD_DOCS_FALSE=''
BUILD_DOCS_TRUE=''
CC='/usr/bin/gcc'
CCAS='/usr/bin/gcc'
CCASDEPMODE='depmode=none'
CCASFLAGS='-O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include'
CCDEPMODE='depmode=none'
CFLAGS='-O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include'
CPPFLAGS='-I/home/buildroot/autobuild/instance-3/output-1/host/include'
CSCOPE='cscope'
CTAGS='ctags'
CXX='/usr/bin/g++'
CXXCPP='/usr/bin/g++ -E'
CXXDEPMODE='depmode=none'
CXXFLAGS='-O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include'
CYGPATH_W='echo'
DEFS=''
DEPDIR='.deps'
DLLTOOL='false'
DSYMUTIL=''
DUMPBIN=''
ECHO_C=''
ECHO_N='-n'
ECHO_T=''
EGREP='/bin/grep -E'
ETAGS='etags'
EXEEXT=''
FFI_DEBUG_FALSE=''
FFI_DEBUG_TRUE=''
FFI_EXEC_TRAMPOLINE_TABLE=''
FFI_EXEC_TRAMPOLINE_TABLE_FALSE=''
FFI_EXEC_TRAMPOLINE_TABLE_TRUE=''
FGREP='/bin/grep -F'
GREP='/bin/grep'
HAVE_LONG_DOUBLE=''
HAVE_LONG_DOUBLE_VARIANT=''
INSTALL_DATA='${INSTALL} -m 644'
INSTALL_PROGRAM='${INSTALL}'
INSTALL_SCRIPT='${INSTALL}'
INSTALL_STRIP_PROGRAM='$(install_sh) -c -s'
LD='/usr/bin/ld -m elf_x86_64'
LDFLAGS='-L/home/buildroot/autobuild/instance-3/output-1/host/lib -Wl,-rpath,/home/buildroot/autobuild/instance-3/output-1/host/lib'
LIBFFI_BUILD_VERSIONED_SHLIB_FALSE=''
LIBFFI_BUILD_VERSIONED_SHLIB_GNU_FALSE=''
LIBFFI_BUILD_VERSIONED_SHLIB_GNU_TRUE=''
LIBFFI_BUILD_VERSIONED_SHLIB_SUN_FALSE=''
LIBFFI_BUILD_VERSIONED_SHLIB_SUN_TRUE=''
LIBFFI_BUILD_VERSIONED_SHLIB_TRUE=''
LIBOBJS=''
LIBS=''
LIBTOOL='$(SHELL) $(top_builddir)/libtool'
LIPO=''
LN_S='ln -s'
LTLIBOBJS=''
LT_SYS_LIBRARY_PATH=''
MAINT=''
MAINTAINER_MODE_FALSE=''
MAINTAINER_MODE_TRUE=''
MAKEINFO='${SHELL} '\''/home/buildroot/autobuild/instance-3/output-1/build/host-libffi-3.4.2/missing'\'' makeinfo'
MANIFEST_TOOL=':'
MKDIR_P='/bin/mkdir -p'
NM='/usr/bin/nm'
NMEDIT=''
OBJDUMP='objdump'
OBJEXT='o'
OPT_LDFLAGS=''
OTOOL64=''
OTOOL=''
PACKAGE='libffi'
PACKAGE_BUGREPORT='http://github.com/libffi/libffi/issues'
PACKAGE_NAME='libffi'
PACKAGE_STRING='libffi 3.4.2'
PACKAGE_TARNAME='libffi'
PACKAGE_URL=''
PACKAGE_VERSION='3.4.2'
PATH_SEPARATOR=':'
PRTDIAG=''
RANLIB='/usr/bin/ranlib'
READELF=''
SECTION_LDFLAGS=''
SED='/bin/sed'
SET_MAKE=''
SHELL='/bin/bash'
STRIP='strip'
TARGET=''
TARGETDIR=''
TARGET_OBJ=''
TESTSUBDIR_FALSE=''
TESTSUBDIR_TRUE=''
VERSION='3.4.2'
ac_ct_AR=''
ac_ct_CC='/usr/bin/gcc'
ac_ct_CXX=''
ac_ct_DUMPBIN=''
am__EXEEXT_FALSE=''
am__EXEEXT_TRUE=''
am__fastdepCCAS_FALSE=''
am__fastdepCCAS_TRUE='#'
am__fastdepCC_FALSE=''
am__fastdepCC_TRUE='#'
am__fastdepCXX_FALSE=''
am__fastdepCXX_TRUE='#'
am__include='include'
am__isrc=' -I$(srcdir)'
am__leading_dot='.'
am__nodep=''
am__quote=''
am__tar='$${TAR-tar} chof - "$$tardir"'
am__untar='$${TAR-tar} xf -'
ax_enable_builddir_sed='sed'
bindir='${exec_prefix}/bin'
build='x86_64-pc-linux-gnu'
build_alias=''
build_cpu='x86_64'
build_os='linux-gnu'
build_vendor='pc'
datadir='${datarootdir}'
datarootdir='${prefix}/share'
docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
dvidir='${docdir}'
exec_prefix='NONE'
host='x86_64-pc-linux-gnu'
host_alias=''
host_cpu='x86_64'
host_os='linux-gnu'
host_vendor='pc'
htmldir='${docdir}'
includedir='${prefix}/include'
infodir='${datarootdir}/info'
install_sh='${SHELL} /home/buildroot/autobuild/instance-3/output-1/build/host-libffi-3.4.2/install-sh'
libdir='${exec_prefix}/lib'
libexecdir='${exec_prefix}/libexec'
localedir='${datarootdir}/locale'
localstatedir='/home/buildroot/autobuild/instance-3/output-1/host/var'
mandir='${datarootdir}/man'
mkdir_p='$(MKDIR_P)'
oldincludedir='/usr/include'
pdfdir='${docdir}'
prefix='/home/buildroot/autobuild/instance-3/output-1/host'
program_transform_name='s,x,x,'
psdir='${docdir}'
runstatedir='${localstatedir}/run'
sbindir='${exec_prefix}/sbin'
sharedstatedir='${prefix}/com'
sys_symbol_underscore=''
sysconfdir='/home/buildroot/autobuild/instance-3/output-1/host/etc'
target='x86_64-pc-linux-gnu'
target_alias=''
target_cpu='x86_64'
target_os='linux-gnu'
target_vendor='pc'
toolexecdir=''
toolexeclibdir=''

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

/* confdefs.h */
#define PACKAGE_NAME "libffi"
#define PACKAGE_TARNAME "libffi"
#define PACKAGE_VERSION "3.4.2"
#define PACKAGE_STRING "libffi 3.4.2"
#define PACKAGE_BUGREPORT "http://github.com/libffi/libffi/issues"
#define PACKAGE_URL ""
#define PACKAGE "libffi"
#define VERSION "3.4.2"
#define HAVE_STDIO_H 1
#define HAVE_STDLIB_H 1
#define HAVE_STRING_H 1
#define HAVE_INTTYPES_H 1
#define HAVE_STDINT_H 1
#define HAVE_STRINGS_H 1
#define HAVE_SYS_STAT_H 1
#define HAVE_SYS_TYPES_H 1
#define HAVE_UNISTD_H 1
#define STDC_HEADERS 1
#define HAVE_DLFCN_H 1
#define LT_OBJDIR ".libs/"

configure: exit 1

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

ac_cv_build=x86_64-pc-linux-gnu
ac_cv_env_CCASFLAGS_set=
ac_cv_env_CCASFLAGS_value=
ac_cv_env_CCAS_set=
ac_cv_env_CCAS_value=
ac_cv_env_CPPFLAGS_set=set
ac_cv_env_CPPFLAGS_value=-I/home/buildroot/autobuild/instance-3/output-1/host/include
ac_cv_env_CXXCPP_set=
ac_cv_env_CXXCPP_value=
ac_cv_env_LT_SYS_LIBRARY_PATH_set=
ac_cv_env_LT_SYS_LIBRARY_PATH_value=
ac_cv_env_build_alias_set=
ac_cv_env_build_alias_value=
ac_cv_env_host_alias_set=
ac_cv_env_host_alias_value=
ac_cv_env_target_alias_set=
ac_cv_env_target_alias_value=
ac_cv_host=x86_64-pc-linux-gnu
ac_cv_target=x86_64-pc-linux-gnu

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

ACLOCAL=''
ALLOCA=''
AMDEPBACKSLASH=''
AMDEP_FALSE=''
AMDEP_TRUE=''
AMTAR=''
AM_BACKSLASH=''
AM_DEFAULT_V=''
AM_DEFAULT_VERBOSITY=''
AM_LTLDFLAGS=''
AM_RUNTESTFLAGS=''
AM_V=''
AR='/usr/bin/ar'
AUTOCONF=''
AUTOHEADER=''
AUTOMAKE=''
AWK=''
BUILD_DOCS_FALSE=''
BUILD_DOCS_TRUE=''
CC='/usr/bin/gcc'
CCAS=''
CCASDEPMODE=''
CCASFLAGS=''
CCDEPMODE=''
CFLAGS='-O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include'
CPPFLAGS='-I/home/buildroot/autobuild/instance-3/output-1/host/include'
CSCOPE=''
CTAGS=''
CXX='/usr/bin/g++'
CXXCPP=''
CXXDEPMODE=''
CXXFLAGS='-O2 -I/home/buildroot/autobuild/instance-3/output-1/host/include'
CYGPATH_W=''
DEFS=''
DEPDIR=''
DLLTOOL=''
DSYMUTIL=''
DUMPBIN=''
ECHO_C=''
ECHO_N='-n'
ECHO_T=''
EGREP=''
ETAGS=''
EXEEXT=''
FFI_DEBUG_FALSE=''
FFI_DEBUG_TRUE=''
FFI_EXEC_TRAMPOLINE_TABLE=''
FFI_EXEC_TRAMPOLINE_TABLE_FALSE=''
FFI_EXEC_TRAMPOLINE_TABLE_TRUE=''
FGREP=''
GREP=''
HAVE_LONG_DOUBLE=''
HAVE_LONG_DOUBLE_VARIANT=''
INSTALL_DATA=''
INSTALL_PROGRAM=''
INSTALL_SCRIPT=''
INSTALL_STRIP_PROGRAM=''
LD='/usr/bin/ld'
LDFLAGS='-L/home/buildroot/autobuild/instance-3/output-1/host/lib -Wl,-rpath,/home/buildroot/autobuild/instance-3/output-1/host/lib'
LIBFFI_BUILD_VERSIONED_SHLIB_FALSE=''
LIBFFI_BUILD_VERSIONED_SHLIB_GNU_FALSE=''
LIBFFI_BUILD_VERSIONED_SHLIB_GNU_TRUE=''
LIBFFI_BUILD_VERSIONED_SHLIB_SUN_FALSE=''
LIBFFI_BUILD_VERSIONED_SHLIB_SUN_TRUE=''
LIBFFI_BUILD_VERSIONED_SHLIB_TRUE=''
LIBOBJS=''
LIBS=''
LIBTOOL=''
LIPO=''
LN_S=''
LTLIBOBJS=''
LT_SYS_LIBRARY_PATH=''
MAINT=''
MAINTAINER_MODE_FALSE=''
MAINTAINER_MODE_TRUE=''
MAKEINFO=''
MANIFEST_TOOL=''
MKDIR_P=''
NM='/usr/bin/nm'
NMEDIT=''
OBJDUMP=''
OBJEXT=''
OPT_LDFLAGS=''
OTOOL64=''
OTOOL=''
PACKAGE=''
PACKAGE_BUGREPORT='http://github.com/libffi/libffi/issues'
PACKAGE_NAME='libffi'
PACKAGE_STRING='libffi 3.4.2'
PACKAGE_TARNAME='libffi'
PACKAGE_URL=''
PACKAGE_VERSION='3.4.2'
PATH_SEPARATOR=':'
PRTDIAG=''
RANLIB='/usr/bin/ranlib'
READELF=''
SECTION_LDFLAGS=''
SED=''
SET_MAKE=''
SHELL='/bin/bash'
STRIP=''
TARGET='x86_64-pc-linux-gnu'
TARGETDIR=''
TARGET_OBJ=''
TESTSUBDIR_FALSE=''
TESTSUBDIR_TRUE=''
VERSION=''
ac_ct_AR=''
ac_ct_CC=''
ac_ct_CXX=''
ac_ct_DUMPBIN=''
am__EXEEXT_FALSE=''
am__EXEEXT_TRUE=''
am__fastdepCCAS_FALSE=''
am__fastdepCCAS_TRUE=''
am__fastdepCC_FALSE=''
am__fastdepCC_TRUE=''
am__fastdepCXX_FALSE=''
am__fastdepCXX_TRUE=''
am__include=''
am__isrc=''
am__leading_dot=''
am__nodep=''
am__quote=''
am__tar=''
am__untar=''
ax_enable_builddir_sed=''
bindir='${exec_prefix}/bin'
build='x86_64-pc-linux-gnu'
build_alias=''
build_cpu='x86_64'
build_os='linux-gnu'
build_vendor='pc'
datadir='${datarootdir}'
datarootdir='${prefix}/share'
docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
dvidir='${docdir}'
exec_prefix='NONE'
host='x86_64-pc-linux-gnu'
host_alias=''
host_cpu='x86_64'
host_os='linux-gnu'
host_vendor='pc'
htmldir='${docdir}'
includedir='${prefix}/include'
infodir='${datarootdir}/info'
install_sh=''
libdir='${exec_prefix}/lib'
libexecdir='${exec_prefix}/libexec'
localedir='${datarootdir}/locale'
localstatedir='/home/buildroot/autobuild/instance-3/output-1/host/var'
mandir='${datarootdir}/man'
mkdir_p=''
oldincludedir='/usr/include'
pdfdir='${docdir}'
prefix='/home/buildroot/autobuild/instance-3/output-1/host'
program_transform_name='s,x,x,'
psdir='${docdir}'
runstatedir='${localstatedir}/run'
sbindir='${exec_prefix}/sbin'
sharedstatedir='${prefix}/com'
sys_symbol_underscore=''
sysconfdir='/home/buildroot/autobuild/instance-3/output-1/host/etc'
target='x86_64-pc-linux-gnu'
target_alias=''
target_cpu='x86_64'
target_os='linux-gnu'
target_vendor='pc'
toolexecdir=''
toolexeclibdir=''

configure: exit 1