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

It was created by cpuminer-opt configure 3.6.8, which was
generated by GNU Autoconf 2.69.  Invocation command line was

  $ ./configure CFLAGS=O3

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

hostname = ubuntu-512mb-nyc3-01
uname -m = x86_64
uname -r = 3.13.0-125-generic
uname -s = Linux
uname -v = #174-Ubuntu SMP Mon Jul 10 18:51:24 UTC 2017

/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: /usr/local/sbin
PATH: /usr/local/bin
PATH: /usr/sbin
PATH: /usr/bin
PATH: /sbin
PATH: /bin
PATH: /usr/games
PATH: /usr/local/games


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

configure:2386: checking build system type
configure:2400: result: x86_64-unknown-linux-gnu
configure:2420: checking host system type
configure:2433: result: x86_64-unknown-linux-gnu
configure:2453: checking target system type
configure:2466: result: x86_64-unknown-linux-gnu
configure:2514: checking for a BSD-compatible install
configure:2582: result: /usr/bin/install -c
configure:2593: checking whether build environment is sane
configure:2648: result: yes
configure:2799: checking for a thread-safe mkdir -p
configure:2838: result: /bin/mkdir -p
configure:2845: checking for gawk
configure:2861: found /usr/bin/gawk
configure:2872: result: gawk
configure:2883: checking whether make sets $(MAKE)
configure:2905: result: yes
configure:2934: checking whether make supports nested variables
configure:2951: result: yes
configure:3078: checking whether to enable maintainer-specific portions of Makefiles
configure:3087: result: no
configure:3113: checking for style of include used by make
configure:3141: result: GNU
configure:3212: checking for gcc
configure:3228: found /usr/bin/gcc
configure:3239: result: gcc
configure:3468: checking for C compiler version
configure:3477: gcc --version >&5
gcc (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4
Copyright (C) 2013 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:3488: $? = 0
configure:3477: gcc -v >&5
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.8/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 4.8.4-2ubuntu1~14.04.3' --with-bugurl=file:///usr/share/doc/gcc-4.8/README.Bugs --enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.8 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.8 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object --disable-libmudflap --enable-plugin --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.8-amd64 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --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 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
configure:3488: $? = 0
configure:3477: gcc -V >&5
gcc: error: unrecognized command line option '-V'
gcc: fatal error: no input files
compilation terminated.
configure:3488: $? = 4
configure:3477: gcc -qversion >&5
gcc: error: unrecognized command line option '-qversion'
gcc: fatal error: no input files
compilation terminated.
configure:3488: $? = 4
configure:3508: checking whether the C compiler works
configure:3530: gcc O3   conftest.c  >&5
gcc: error: O3: No such file or directory
configure:3534: $? = 1
configure:3572: result: no
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "cpuminer-opt"
| #define PACKAGE_TARNAME "cpuminer-opt"
| #define PACKAGE_VERSION "3.6.8"
| #define PACKAGE_STRING "cpuminer-opt 3.6.8"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL ""
| #define PACKAGE "cpuminer-opt"
| #define VERSION "3.6.8"
| /* end confdefs.h.  */
|
| int
| main ()
| {
|
|   ;
|   return 0;
| }
configure:3577: error: in `/root/cpuminer-opt':
configure:3579: error: C compiler cannot create executables
See `config.log' for more details

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

ac_cv_build=x86_64-unknown-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_CCC_set=
ac_cv_env_CCC_value=
ac_cv_env_CC_set=
ac_cv_env_CC_value=
ac_cv_env_CFLAGS_set=set
ac_cv_env_CFLAGS_value=O3
ac_cv_env_CPPFLAGS_set=
ac_cv_env_CPPFLAGS_value=
ac_cv_env_CPP_set=
ac_cv_env_CPP_value=
ac_cv_env_CXXFLAGS_set=
ac_cv_env_CXXFLAGS_value=
ac_cv_env_CXX_set=
ac_cv_env_CXX_value=
ac_cv_env_LDFLAGS_set=
ac_cv_env_LDFLAGS_value=
ac_cv_env_LIBS_set=
ac_cv_env_LIBS_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-unknown-linux-gnu
ac_cv_path_install='/usr/bin/install -c'
ac_cv_path_mkdir=/bin/mkdir
ac_cv_prog_AWK=gawk
ac_cv_prog_ac_ct_CC=gcc
ac_cv_prog_make_make_set=yes
ac_cv_target=x86_64-unknown-linux-gnu
am_cv_make_support_nested_variables=yes

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

ACLOCAL='${SHELL} /root/cpuminer-opt/missing aclocal-1.14'
ALLOCA=''
AMDEPBACKSLASH='\'
AMDEP_FALSE='#'
AMDEP_TRUE=''
AMTAR='$${TAR-tar}'
AM_BACKSLASH='\'
AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
AM_DEFAULT_VERBOSITY='1'
AM_V='$(V)'
ARCH_ARM_FALSE=''
ARCH_ARM_TRUE=''
ARCH_x86_64_FALSE=''
ARCH_x86_64_TRUE=''
ARCH_x86_FALSE=''
ARCH_x86_TRUE=''
AUTOCONF='${SHELL} /root/cpuminer-opt/missing autoconf'
AUTOHEADER='${SHELL} /root/cpuminer-opt/missing autoheader'
AUTOMAKE='${SHELL} /root/cpuminer-opt/missing automake-1.14'
AWK='gawk'
CC='gcc'
CCAS=''
CCASDEPMODE=''
CCASFLAGS=''
CCDEPMODE=''
CFLAGS='O3'
CPP=''
CPPFLAGS=''
CXX=''
CXXDEPMODE=''
CXXFLAGS=''
CYGPATH_W='echo'
DEFS=''
DEPDIR='.deps'
ECHO_C=''
ECHO_N='-n'
ECHO_T=''
EGREP=''
EXEEXT=''
GREP=''
HAVE_WINDOWS_FALSE=''
HAVE_WINDOWS_TRUE=''
INSTALL_DATA='${INSTALL} -m 644'
INSTALL_PROGRAM='${INSTALL}'
INSTALL_SCRIPT='${INSTALL}'
INSTALL_STRIP_PROGRAM='$(install_sh) -c -s'
JANSSON_LIBS=''
LDFLAGS=''
LIBCURL=''
LIBCURL_CFLAGS=''
LIBCURL_CPPFLAGS=''
LIBOBJS=''
LIBS=''
LTLIBOBJS=''
MAINT='#'
MAINTAINER_MODE_FALSE=''
MAINTAINER_MODE_TRUE='#'
MAKEINFO='${SHELL} /root/cpuminer-opt/missing makeinfo'
MINGW_FALSE=''
MINGW_TRUE=''
MKDIR_P='/bin/mkdir -p'
OBJEXT=''
PACKAGE='cpuminer-opt'
PACKAGE_BUGREPORT=''
PACKAGE_NAME='cpuminer-opt'
PACKAGE_STRING='cpuminer-opt 3.6.8'
PACKAGE_TARNAME='cpuminer-opt'
PACKAGE_URL=''
PACKAGE_VERSION='3.6.8'
PATH_SEPARATOR=':'
PTHREAD_FLAGS=''
PTHREAD_LIBS=''
RANLIB=''
SET_MAKE=''
SHELL='/bin/bash'
STRIP=''
USE_ASM_FALSE=''
USE_ASM_TRUE=''
VERSION='3.6.8'
WANT_JANSSON_FALSE=''
WANT_JANSSON_TRUE=''
WS2_LIBS=''
ac_ct_CC='gcc'
ac_ct_CXX=''
am__EXEEXT_FALSE=''
am__EXEEXT_TRUE=''
am__fastdepCCAS_FALSE=''
am__fastdepCCAS_TRUE=''
am__fastdepCC_FALSE=''
am__fastdepCC_TRUE=''
am__fastdepCXX_FALSE=''
am__fastdepCXX_TRUE=''
am__include='include'
am__isrc=''
am__leading_dot='.'
am__nodep='_no'
am__quote=''
am__tar='$${TAR-tar} chof - "$$tardir"'
am__untar='$${TAR-tar} xf -'
bindir='${exec_prefix}/bin'
build='x86_64-unknown-linux-gnu'
build_alias=''
build_cpu='x86_64'
build_os='linux-gnu'
build_vendor='unknown'
datadir='${datarootdir}'
datarootdir='${prefix}/share'
docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
dvidir='${docdir}'
exec_prefix='NONE'
host='x86_64-unknown-linux-gnu'
host_alias=''
host_cpu='x86_64'
host_os='linux-gnu'
host_vendor='unknown'
htmldir='${docdir}'
includedir='${prefix}/include'
infodir='${datarootdir}/info'
install_sh='${SHELL} /root/cpuminer-opt/install-sh'
libdir='${exec_prefix}/lib'
libexecdir='${exec_prefix}/libexec'
localedir='${datarootdir}/locale'
localstatedir='${prefix}/var'
mandir='${datarootdir}/man'
mkdir_p='$(MKDIR_P)'
oldincludedir='/usr/include'
pdfdir='${docdir}'
prefix='NONE'
program_transform_name='s,x,x,'
psdir='${docdir}'
sbindir='${exec_prefix}/sbin'
sharedstatedir='${prefix}/com'
sysconfdir='${prefix}/etc'
target='x86_64-unknown-linux-gnu'
target_alias=''
target_cpu='x86_64'
target_os='linux-gnu'
target_vendor='unknown'

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

/* confdefs.h */
#define PACKAGE_NAME "cpuminer-opt"
#define PACKAGE_TARNAME "cpuminer-opt"
#define PACKAGE_VERSION "3.6.8"
#define PACKAGE_STRING "cpuminer-opt 3.6.8"
#define PACKAGE_BUGREPORT ""
#define PACKAGE_URL ""
#define PACKAGE "cpuminer-opt"
#define VERSION "3.6.8"

configure: exit 77