Re: Cross-compiling with Autoconf

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On 11/02/2015 12:41 PM, Gavin Smith wrote:

> On 2 November 2015 at 19:39, Dustin Laurence <dllaurence@xxxxxxxxxxxxxx> wrote:
>> First problem--configure dies, reporting that "C compiler cannot create
>> executables."
> 
> Is there anything in config.log that could shed light on the causes of
> this failure?

Sorry, that was bad manners.  I meant to add the file to my original
message, but of course I forgot. :-(  I don't know if the customs of
this list discourage attachments, so I'll append it below.  If
attachments are preferred I'll switch to doing it that way.

It says it can't find crt0.o, which is why I guessed that I need to
figure out how to point it to the embedded system runtime before I can
tell if anything else works.

> It might be simpler to debug by getting the configure run right from
> the command line first, instead of doing it from a Makefile. In fact,
> running configure from a Makefile you wrote yourself is unusual.

Yeah, it's only there for experimental purposes because I got tired of
experimenting with doing up-arrow in the shell and editing my previous
invocation.  It would have been a trivial shell script except I already
have all the directories and flags defined in make and I know they're
correct.

> These generic installation instructions:
> https://www.gnu.org/software/autoconf/manual/autoconf-2.68/html_node/Multiple-Architectures.html
> 
> show putting flags directly in CC.

Thanks, I didn't find that, and I probably do want to install for
multiple architectures as that describes.  Putting the architecture
flags in CC doesn't change the error, though (I'll show that in another
reply, one config.log per message is more than enough).

Dustin

------------------------------------------------------------------------------------------
Invocation:

./configure \
                --build=`./build-aux/config.guess` \
                --host strongarm-codesafe-elf \
                CC="/opt/nfast/gcc/bin/strongarm-codesafe-elf-gcc" \
                AR="/opt/nfast/gcc/bin/strongarm-codesafe-elf-ar" \
                RANLIB="/opt/nfast/gcc/bin/strongarm-codesafe-elf-ranlib" \
                AS="/opt/nfast/gcc/bin/strongarm-codesafe-elf-as" \
                LD="/opt/nfast/gcc/bin/strongarm-codesafe-elf-ld" \
                NM="/opt/nfast/gcc/bin/strongarm-codesafe-elf-nm" \
                STRIP="/opt/nfast/gcc/bin/strongarm-codesafe-elf-strip"

resulting config.log:

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

It was created by libsecp256k1 configure 0.1, which was
generated by GNU Autoconf 2.69.  Invocation command line was

  $ ./configure --build=x86_64-unknown-linux-gnu --host
strongarm-codesafe-elf CC=/opt/nfast/gcc/bin/strongarm-codesafe-elf-gcc
AR=/opt/nfast/gcc/bin/strongarm-codesafe-elf-ar
RANLIB=/opt/nfast/gcc/bin/strongarm-codesafe-elf-ranlib
AS=/opt/nfast/gcc/bin/strongarm-codesafe-elf-as
LD=/opt/nfast/gcc/bin/strongarm-codesafe-elf-ld
NM=/opt/nfast/gcc/bin/strongarm-codesafe-elf-nm
STRIP=/opt/nfast/gcc/bin/strongarm-codesafe-elf-strip

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

hostname = Convex
uname -m = x86_64
uname -r = 3.13.0-52-generic
uname -s = Linux
uname -v = #86-Ubuntu SMP Mon May 4 04:32:59 UTC 2015

/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/laurence/.virtualenvs/api/bin
PATH: /home/laurence/.rbenv/shims
PATH: /home/laurence/.rbenv/bin
PATH: /home/laurence/bin
PATH: /usr/local/sbin
PATH: /usr/local/bin
PATH: /usr/sbin
PATH: /usr/bin
PATH: /sbin
PATH: /bin
PATH: /usr/games
PATH: /usr/local/games


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

configure:2360: checking build system type
configure:2374: result: x86_64-unknown-linux-gnu
configure:2394: checking host system type
configure:2407: result: arm-codesafe-elf
configure:2446: checking for a BSD-compatible install
configure:2514: result: /usr/bin/install -c
configure:2525: checking whether build environment is sane
configure:2580: result: yes
configure:2639: checking for strongarm-codesafe-elf-strip
configure:2666: result: /opt/nfast/gcc/bin/strongarm-codesafe-elf-strip
configure:2731: checking for a thread-safe mkdir -p
configure:2770: result: /bin/mkdir -p
configure:2777: checking for gawk
configure:2807: result: no
configure:2777: checking for mawk
configure:2793: found /usr/bin/mawk
configure:2804: result: mawk
configure:2815: checking whether make sets $(MAKE)
configure:2837: result: yes
configure:2866: checking whether make supports nested variables
configure:2883: result: yes
configure:3054: checking how to print strings
configure:3081: result: printf
configure:3114: checking for style of include used by make
configure:3142: result: GNU
configure:3173: checking for strongarm-codesafe-elf-gcc
configure:3200: result: /opt/nfast/gcc/bin/strongarm-codesafe-elf-gcc
configure:3469: checking for C compiler version
configure:3478: /opt/nfast/gcc/bin/strongarm-codesafe-elf-gcc --version >&5
strongarm-codesafe-elf-gcc (GCC) 3.3.6
Copyright (C) 2003 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:3489: $? = 0
configure:3478: /opt/nfast/gcc/bin/strongarm-codesafe-elf-gcc -v >&5
Reading specs from
/opt/nfast/gcc/bin/../lib/gcc-lib/strongarm-codesafe-elf/3.3.6/specs
Configured with: ../gcc-3.3.6/configure --target=strongarm-codesafe-elf
--prefix=/ncipher/vines/b.1196079149.10270.1/gccsrc-1.1.13/own/spec/armdev/gcc
--enable-languages=c
Thread model: single
gcc version 3.3.6
configure:3489: $? = 0
configure:3478: /opt/nfast/gcc/bin/strongarm-codesafe-elf-gcc -V >&5
strongarm-codesafe-elf-gcc: `-V' option must have argument
configure:3489: $? = 1
configure:3478: /opt/nfast/gcc/bin/strongarm-codesafe-elf-gcc -qversion >&5
strongarm-codesafe-elf-gcc: unrecognized option `-qversion'
strongarm-codesafe-elf-gcc: no input files
configure:3489: $? = 1
configure:3509: checking whether the C compiler works
configure:3531: /opt/nfast/gcc/bin/strongarm-codesafe-elf-gcc
conftest.c  >&5
/opt/nfast/gcc/bin/../lib/gcc-lib/strongarm-codesafe-elf/3.3.6/../../../../strongarm-codesafe-elf/bin/ld:
crt0.o: No such file: No such file or directory
collect2: ld returned 1 exit status
configure:3535: $? = 1
configure:3573: result: no
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "libsecp256k1"
| #define PACKAGE_TARNAME "libsecp256k1"
| #define PACKAGE_VERSION "0.1"
| #define PACKAGE_STRING "libsecp256k1 0.1"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL ""
| #define PACKAGE "libsecp256k1"
| #define VERSION "0.1"
| /* end confdefs.h.  */
|
| int
| main ()
| {
|
|   ;
|   return 0;
| }
configure:3578: error: in
`/home/laurence/Projects/BitVault/HSM/gem-hsm/secp256k1':
configure:3580: 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_CC_set=set
ac_cv_env_CC_value=/opt/nfast/gcc/bin/strongarm-codesafe-elf-gcc
ac_cv_env_CFLAGS_set=
ac_cv_env_CFLAGS_value=
ac_cv_env_CPPFLAGS_set=
ac_cv_env_CPPFLAGS_value=
ac_cv_env_CPP_set=
ac_cv_env_CPP_value=
ac_cv_env_CRYPTO_CFLAGS_set=
ac_cv_env_CRYPTO_CFLAGS_value=
ac_cv_env_CRYPTO_LIBS_set=
ac_cv_env_CRYPTO_LIBS_value=
ac_cv_env_LDFLAGS_set=
ac_cv_env_LDFLAGS_value=
ac_cv_env_LIBS_set=
ac_cv_env_LIBS_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=
ac_cv_env_PKG_CONFIG_value=
ac_cv_env_build_alias_set=set
ac_cv_env_build_alias_value=x86_64-unknown-linux-gnu
ac_cv_env_host_alias_set=set
ac_cv_env_host_alias_value=strongarm-codesafe-elf
ac_cv_env_target_alias_set=
ac_cv_env_target_alias_value=
ac_cv_host=arm-codesafe-elf
ac_cv_path_install='/usr/bin/install -c'
ac_cv_path_mkdir=/bin/mkdir
ac_cv_prog_AWK=mawk
ac_cv_prog_CC=/opt/nfast/gcc/bin/strongarm-codesafe-elf-gcc
ac_cv_prog_STRIP=/opt/nfast/gcc/bin/strongarm-codesafe-elf-strip
ac_cv_prog_make_make_set=yes
am_cv_make_support_nested_variables=yes

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

ACLOCAL='${SHELL}
/home/laurence/Projects/BitVault/HSM/gem-hsm/secp256k1/build-aux/missing
aclocal-1.14'
AMDEPBACKSLASH='\'
AMDEP_FALSE='#'
AMDEP_TRUE=''
AMTAR='$${TAR-tar}'
AM_BACKSLASH='\'
AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
AM_DEFAULT_VERBOSITY='1'
AM_V='$(V)'
AR='/opt/nfast/gcc/bin/strongarm-codesafe-elf-ar'
AUTOCONF='${SHELL}
/home/laurence/Projects/BitVault/HSM/gem-hsm/secp256k1/build-aux/missing
autoconf'
AUTOHEADER='${SHELL}
/home/laurence/Projects/BitVault/HSM/gem-hsm/secp256k1/build-aux/missing
autoheader'
AUTOMAKE='${SHELL}
/home/laurence/Projects/BitVault/HSM/gem-hsm/secp256k1/build-aux/missing
automake-1.14'
AWK='mawk'
BREW=''
BUILD_EXEEXT=''
BUILD_OBJEXT=''
CC='/opt/nfast/gcc/bin/strongarm-codesafe-elf-gcc'
CCDEPMODE=''
CC_FOR_BUILD=''
CFLAGS=''
CFLAGS_FOR_BUILD=''
CPP=''
CPPFLAGS=''
CPPFLAGS_FOR_BUILD=''
CPP_FOR_BUILD=''
CRYPTO_CFLAGS=''
CRYPTO_LIBS=''
CYGPATH_W='echo'
DEFS=''
DEPDIR='.deps'
DLLTOOL=''
DSYMUTIL=''
DUMPBIN=''
ECHO_C=''
ECHO_N='-n'
ECHO_T=''
EGREP=''
ENABLE_MODULE_ECDH_FALSE=''
ENABLE_MODULE_ECDH_TRUE=''
ENABLE_MODULE_RECOVERY_FALSE=''
ENABLE_MODULE_RECOVERY_TRUE=''
ENABLE_MODULE_SCHNORR_FALSE=''
ENABLE_MODULE_SCHNORR_TRUE=''
EXEEXT=''
FGREP=''
GREP=''
INSTALL_DATA='${INSTALL} -m 644'
INSTALL_PROGRAM='${INSTALL}'
INSTALL_SCRIPT='${INSTALL}'
INSTALL_STRIP_PROGRAM='$(install_sh) -c -s'
LD='/opt/nfast/gcc/bin/strongarm-codesafe-elf-ld'
LDFLAGS=''
LDFLAGS_FOR_BUILD=''
LIBOBJS=''
LIBS=''
LIBTOOL=''
LIPO=''
LN_S=''
LTLIBOBJS=''
MAKEINFO='${SHELL}
/home/laurence/Projects/BitVault/HSM/gem-hsm/secp256k1/build-aux/missing
makeinfo'
MANIFEST_TOOL=''
MKDIR_P='/bin/mkdir -p'
NM='/opt/nfast/gcc/bin/strongarm-codesafe-elf-nm'
NMEDIT=''
OBJDUMP=''
OBJEXT=''
OTOOL64=''
OTOOL=''
PACKAGE='libsecp256k1'
PACKAGE_BUGREPORT=''
PACKAGE_NAME='libsecp256k1'
PACKAGE_STRING='libsecp256k1 0.1'
PACKAGE_TARNAME='libsecp256k1'
PACKAGE_URL=''
PACKAGE_VERSION='0.1'
PATH_SEPARATOR=':'
PKG_CONFIG=''
PKG_CONFIG_LIBDIR=''
PKG_CONFIG_PATH=''
PORT=''
RANLIB='/opt/nfast/gcc/bin/strongarm-codesafe-elf-ranlib'
SECP_INCLUDES=''
SECP_LIBS=''
SECP_TEST_INCLUDES=''
SECP_TEST_LIBS=''
SED=''
SET_MAKE=''
SHELL='/bin/bash'
STRIP='/opt/nfast/gcc/bin/strongarm-codesafe-elf-strip'
USE_BENCHMARK_FALSE=''
USE_BENCHMARK_TRUE=''
USE_ECMULT_STATIC_PRECOMPUTATION_FALSE=''
USE_ECMULT_STATIC_PRECOMPUTATION_TRUE=''
USE_TESTS_FALSE=''
USE_TESTS_TRUE=''
VERSION='0.1'
ac_ct_AR=''
ac_ct_CC=''
ac_ct_CC_FOR_BUILD=''
ac_ct_DUMPBIN=''
am__EXEEXT_FALSE=''
am__EXEEXT_TRUE=''
am__fastdepCC_FALSE=''
am__fastdepCC_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='${exec_prefix}/bin'
build='x86_64-unknown-linux-gnu'
build_alias='x86_64-unknown-linux-gnu'
build_cpu='x86_64'
build_os='linux-gnu'
build_vendor='unknown'
datadir='${datarootdir}'
datarootdir='${prefix}/share'
docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
dvidir='${docdir}'
exec_prefix='NONE'
host='arm-codesafe-elf'
host_alias='strongarm-codesafe-elf'
host_cpu='arm'
host_os='elf'
host_vendor='codesafe'
htmldir='${docdir}'
includedir='${prefix}/include'
infodir='${datarootdir}/info'
install_sh='${SHELL}
/home/laurence/Projects/BitVault/HSM/gem-hsm/secp256k1/build-aux/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_alias=''

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

/* confdefs.h */
#define PACKAGE_NAME "libsecp256k1"
#define PACKAGE_TARNAME "libsecp256k1"
#define PACKAGE_VERSION "0.1"
#define PACKAGE_STRING "libsecp256k1 0.1"
#define PACKAGE_BUGREPORT ""
#define PACKAGE_URL ""
#define PACKAGE "libsecp256k1"
#define VERSION "0.1"

configure: exit 77


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