Re: Cross-compiling with Autoconf

[Dustin Laurence]

On 11/02/2015 12:42 PM, Gavin Smith wrote:

> But I should add that using CFLAGS is more usual:
> https://www.gnu.org/software/autoconf/manual/autoconf-2.68/html_node/Compilers-and-Options.html#Compilers-and-Options

I tried adding just the architecture flags to CFLAGS, but it doesn't
really matter because it isn't finding the runtime:

Invocation (sorry about the crappy mail client wrapping):

./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" \
                CFLAGS="-mapcs-32 -msoft-float -mlittle-endian
-march=armv4 -nostdinc"

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 CFLAGS=-mapcs-32
-msoft-float -mlittle-endian -march=armv4 -nostdinc

## --------- ##
## 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 -mapcs-32
-msoft-float -mlittle-endian -march=armv4 -nostdinc   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=set
ac_cv_env_CFLAGS_value='-mapcs-32 -msoft-float -mlittle-endian
-march=armv4 -nostdinc'
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='-mapcs-32 -msoft-float -mlittle-endian -march=armv4 -nostdinc'
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