configure: error: compilateur C ne peut pas créer des exécutables dans le terminal de mac os

je suis en train de Bâtiment libCURL dans l'iOS 4.2, je fais quelques pas dans le terminal.
Les étapes sont les suivantes :

1. cd curl-7.21.2
2. export CC=/Developer\ 4.2/Platforms/iPhoneOS.platform/Developer/usr/bin/arm-apple-darwin10-gcc-4.0.1
3. export CFLAGS="-isysroot /Developer\ 4.2/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk"
4. export LDFLAGS="-isysroot /Developer\ 4.2/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk -Wl,-syslibroot /Developer\ 4.2/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk"
5. export CPP=/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/cpp
6. ./configure --disable-shared --without-ssl --without-libssh2 --without-ca-bundle --without-ldap --disable-ldap --host=arm-apple-darwin10

mais après appuyez sur entrer dans le terminal me montrer ces avertissements et d'erreurs :

configure: WARNING: if you wanted to set the --build type, don't use --host.
    If a cross compiler is detected then cross compile mode will be used
checking whether to enable maintainer-specific portions of Makefiles... no
checking whether to enable debug build options... no
checking whether to enable compiler optimizer... (assumed) yes
checking whether to enable strict compiler warnings... no
checking whether to enable compiler warnings as errors... no
checking whether to enable curl debug memory tracking... no
checking whether to enable c-ares for DNS lookups... no
checking for sed... /usr/bin/sed
checking for grep... /usr/bin/grep
checking for egrep... /usr/bin/grep -E
checking for arm-apple-darwin10-ar... no
checking for ar... /usr/bin/ar
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... no
checking for mawk... no
checking for nawk... no
checking for awk... awk
checking whether make sets $(MAKE)... yes
checking for arm-apple-darwin10-strip... no
checking for strip... strip
checking curl version... 7.21.6
checking build system type... i386-apple-darwin10.6.0
checking host system type... arm-apple-darwin10
checking for style of include used by make... GNU
checking for arm-apple-darwin10-gcc... /Developer 4.2/Platforms/iPhoneOS.platform/Developer/usr/bin/arm-apple-darwin10-gcc-4.0.1
checking whether the C compiler works... no
configure: error: in `/Users/sikmac2/desktop/curl-7.21.6':
configure: error: C compiler cannot create executables
See `config.log' for more details

c'est la config.journal :

This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.
It was created by curl configure -, which was
generated by GNU Autoconf 2.68.  Invocation command line was
$ ./configure --disable-shared --without-ssl --without-libssh2 --without-ca-bundle --without-ldap --disable-ldap --host=arm-apple-darwin10
## --------- ##
## Platform. ##
## --------- ##
hostname = sikmac2s-MacBook.local
uname -m = i386
uname -r = 10.6.0
uname -s = Darwin
uname -v = Darwin Kernel Version 10.6.0: Wed Nov 10 18:13:17 PST 2010; root:xnu-1504.9.26~3/RELEASE_I386
/usr/bin/uname -p = i386
/bin/uname -X     = unknown
/bin/arch              = unknown
/usr/bin/arch -k       = unknown
/usr/convex/getsysinfo = unknown
/usr/bin/hostinfo      = Mach kernel version:
Darwin Kernel Version 10.6.0: Wed Nov 10 18:13:17 PST 2010; root:xnu-1504.9.26~3/RELEASE_I386
Kernel configured for up to 2 processors.
2 processors are physically available.
2 processors are logically available.
Processor type: i486 (Intel 80486)
Processors active: 0 1
Primary memory available: 2.00 gigabytes
Default processor set: 84 tasks, 416 threads, 2 processors
Load average: 0.49, Mach factor: 1.65
/bin/machine           = unknown
/usr/bin/oslevel       = unknown
/bin/universe          = unknown
PATH: /usr/bin
PATH: /bin
PATH: /usr/sbin
PATH: /sbin
PATH: /usr/local/bin
PATH: /usr/X11/bin
## ----------- ##
## Core tests. ##
## ----------- ##
configure:2693: checking whether to enable maintainer-specific portions of Makefiles
configure:2702: result: no
configure:2719: checking whether to enable debug build options
configure:2738: result: no
configure:2742: checking whether to enable compiler optimizer
configure:2763: result: (assumed) yes
configure:2775: checking whether to enable strict compiler warnings
configure:2794: result: no
configure:2798: checking whether to enable compiler warnings as errors
configure:2817: result: no
configure:2821: checking whether to enable curl debug memory tracking
configure:2840: result: no
configure:2854: checking whether to enable c-ares for DNS lookups
configure:2876: result: no
configure:2898: checking for sed
configure:2917: found /usr/bin/sed
configure:2930: result: /usr/bin/sed
configure:2947: checking for grep
configure:2966: found /usr/bin/grep
configure:2979: result: /usr/bin/grep
configure:2995: checking for egrep
configure:2998: result: /usr/bin/grep -E
configure:3054: checking for arm-apple-darwin10-ar
configure:3088: result: no
configure:3098: checking for ar
configure:3117: found /usr/bin/ar
configure:3129: result: /usr/bin/ar
configure:3208: checking for a BSD-compatible install
configure:3276: result: /usr/bin/install -c
configure:3287: checking whether build environment is sane
configure:3324: result: yes
configure:3386: checking for gawk
configure:3416: result: no
configure:3386: checking for mawk
configure:3416: result: no
configure:3386: checking for nawk
configure:3416: result: no
configure:3386: checking for awk
configure:3402: found /usr/bin/awk
configure:3413: result: awk
configure:3424: checking whether make sets $(MAKE)
configure:3446: result: yes
configure:3520: checking for arm-apple-darwin10-strip
configure:3550: result: no
configure:3560: checking for strip
configure:3576: found /usr/bin/strip
configure:3587: result: strip
configure:3624: checking curl version
configure:3626: result: 7.21.6
configure:3667: checking build system type
configure:3681: result: i386-apple-darwin10.6.0
configure:3701: checking host system type
configure:3714: result: arm-apple-darwin10
configure:3752: checking for style of include used by make
configure:3780: result: GNU
configure:3816: checking for arm-apple-darwin10-gcc
configure:3843: result: /Developer 4.2/Platforms/iPhoneOS.platform/Developer/usr/bin/arm-apple-darwin10-gcc-4.0.1
configure:4112: checking for C compiler version
configure:4121: /Developer 4.2/Platforms/iPhoneOS.platform/Developer/usr/bin/arm-apple-darwin10-gcc-4.0.1 --version >&5
./configure: line 4123: /Developer: is a directory
configure:4132: $? = 126
configure:4121: /Developer 4.2/Platforms/iPhoneOS.platform/Developer/usr/bin/arm-apple-darwin10-gcc-4.0.1 -v >&5
./configure: line 4123: /Developer: is a directory
configure:4132: $? = 126
configure:4121: /Developer 4.2/Platforms/iPhoneOS.platform/Developer/usr/bin/arm-apple-darwin10-gcc-4.0.1 -V >&5
./configure: line 4123: /Developer: is a directory
configure:4132: $? = 126
configure:4121: /Developer 4.2/Platforms/iPhoneOS.platform/Developer/usr/bin/arm-apple-darwin10-gcc-4.0.1 -qversion >&5
./configure: line 4123: /Developer: is a directory
configure:4132: $? = 126
configure:4151: checking whether the C compiler works
configure:4173: /Developer 4.2/Platforms/iPhoneOS.platform/Developer/usr/bin/arm-apple-darwin10-gcc-4.0.1 -isysroot /Developer\ 4.2/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk  -isysroot /Developer\ 4.2/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk -Wl,-syslibroot /Developer\ 4.2/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk conftest.c  >&5
./configure: line 4175: /Developer: is a directory
configure:4177: $? = 126
configure:4215: result: no
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "curl"
| #define PACKAGE_TARNAME "curl"
| #define PACKAGE_VERSION "-"
| #define PACKAGE_STRING "curl -"
| #define PACKAGE_BUGREPORT "a suitable curl mailing list: http://curl.haxx.se/mail/"
| #define PACKAGE_URL ""
| #define PACKAGE "curl"
| #define VERSION "-"
| #define OS "arm-apple-darwin10"
| /* end confdefs.h.  */
| 
| int main (void)
| {
| 
|  ;
|  return 0;
| }
configure:4220: error: in `/Users/sikmac2/desktop/curl-7.21.6':
configure:4222: error: C compiler cannot create executables
See `config.log' for more details
## ---------------- ##
## Cache variables. ##
## ---------------- ##
ac_cv_build=i386-apple-darwin10.6.0
ac_cv_env_CC_set=set
ac_cv_env_CC_value='/Developer 4.2/Platforms/iPhoneOS.platform/Developer/usr/bin/arm-apple-darwin10-gcc-4.0.1'
ac_cv_env_CFLAGS_set=set
ac_cv_env_CFLAGS_value='-isysroot /Developer\ 4.2/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk'
ac_cv_env_CPPFLAGS_set=
ac_cv_env_CPPFLAGS_value=
ac_cv_env_CPP_set=set
ac_cv_env_CPP_value='/Developer 4.2/Platforms/iPhoneOS.platform/Developer/usr/bin/cpp'
ac_cv_env_LDFLAGS_set=set
ac_cv_env_LDFLAGS_value='-isysroot /Developer\ 4.2/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk -Wl,-syslibroot /Developer\ 4.2/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk'
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=set
ac_cv_env_host_alias_value=arm-apple-darwin10
ac_cv_env_target_alias_set=
ac_cv_env_target_alias_value=
ac_cv_host=arm-apple-darwin10
ac_cv_path_GREP=/usr/bin/grep
ac_cv_path_SED=/usr/bin/sed
ac_cv_path_ac_pt_AR=/usr/bin/ar
ac_cv_path_install='/usr/bin/install -c'
ac_cv_prog_AWK=awk
ac_cv_prog_CC='/Developer 4.2/Platforms/iPhoneOS.platform/Developer/usr/bin/arm-apple-darwin10-gcc-4.0.1'
ac_cv_prog_ac_ct_STRIP=strip
ac_cv_prog_make_make_set=yes
curl_cv_PATH_SEPARATOR=:
## ----------------- ##
## Output variables. ##
## ----------------- ##
ACLOCAL='${SHELL} "/Users/sikmac2/desktop/curl-7.21.6/missing" --run aclocal-1.9'
AMDEPBACKSLASH='\'
AMDEP_FALSE='#'
AMDEP_TRUE=''
AMTAR='${SHELL} "/Users/sikmac2/desktop/curl-7.21.6/missing" --run tar'
AR='/usr/bin/ar'
AS=''
AUTOCONF='${SHELL} "/Users/sikmac2/desktop/curl-7.21.6/missing" --run autoconf'
AUTOHEADER='${SHELL} "/Users/sikmac2/desktop/curl-7.21.6/missing" --run autoheader'
AUTOMAKE='${SHELL} "/Users/sikmac2/desktop/curl-7.21.6/missing" --run automake-1.9'
AWK='awk'
BUILD_LIBHOSTNAME_FALSE=''
BUILD_LIBHOSTNAME_TRUE=''
CC='/Developer 4.2/Platforms/iPhoneOS.platform/Developer/usr/bin/arm-apple-darwin10-gcc-4.0.1'
CCDEPMODE=''
CFLAGS='-isysroot /Developer\ 4.2/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk'
CONFIGURE_OPTIONS='" '\''--disable-shared'\'' '\''--without-ssl'\'' '\''--without-libssh2'\'' '\''--without-ca-bundle'\'' '\''--without-ldap'\'' '\''--disable-ldap'\'' '\''--host=arm-apple-darwin10'\'' '\''host_alias=arm-apple-darwin10'\'' '\''CC=/Developer 4.2/Platforms/iPhoneOS.platform/Developer/usr/bin/arm-apple-darwin10-gcc-4.0.1'\'' '\''CFLAGS=-isysroot /Developer\ 4.2/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk'\'' '\''LDFLAGS=-isysroot /Developer\ 4.2/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk -Wl,-syslibroot /Developer\ 4.2/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk'\'' '\''CPP=/Developer 4.2/Platforms/iPhoneOS.platform/Developer/usr/bin/cpp'\''"'
CPP='/Developer 4.2/Platforms/iPhoneOS.platform/Developer/usr/bin/cpp'
CPPFLAGS=''
CROSSCOMPILING_FALSE=''
CROSSCOMPILING_TRUE=''
CURLDEBUG_FALSE=''
CURLDEBUG_TRUE=''
CURLVERSION='7.21.6'
CURL_CA_BUNDLE=''
CURL_CFLAG_EXTRAS=''
CURL_DISABLE_DICT=''
CURL_DISABLE_FILE=''
CURL_DISABLE_FTP=''
CURL_DISABLE_GOPHER=''
CURL_DISABLE_HTTP=''
CURL_DISABLE_IMAP=''
CURL_DISABLE_LDAP=''
CURL_DISABLE_LDAPS=''
CURL_DISABLE_POP3=''
CURL_DISABLE_PROXY=''
CURL_DISABLE_RTSP=''
CURL_DISABLE_SMTP=''
CURL_DISABLE_TELNET=''
CURL_DISABLE_TFTP=''
CURL_LIBS=''
CURL_NETWORK_LIBS=''
CYGPATH_W='echo'
DEFS=''
DEPDIR='.deps'
DLLTOOL=''
DSYMUTIL=''
DUMPBIN=''
ECHO_C='\c'
ECHO_N=''
ECHO_T=''
EGREP='/usr/bin/grep -E'
ENABLE_SHARED=''
EXEEXT=''
FGREP=''
GREP='/usr/bin/grep'
HAVE_GNUTLS_SRP=''
HAVE_LDAP_SSL=''
HAVE_LIBZ=''
HAVE_LIBZ_FALSE=''
HAVE_LIBZ_TRUE=''
HAVE_PK11_CREATEGENERICOBJECT=''
HAVE_SSLEAY_SRP=''
IDN_ENABLED=''
INSTALL_DATA='${INSTALL} -m 644'
INSTALL_PROGRAM='${INSTALL}'
INSTALL_SCRIPT='${INSTALL}'
INSTALL_STRIP_PROGRAM='${SHELL} $(install_sh) -c -s'
IPV6_ENABLED=''
KRB4_ENABLED=''
LD=''
LDFLAGS='-isysroot /Developer\ 4.2/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk -Wl,-syslibroot /Developer\ 4.2/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk'
LIBCURL_LIBS=''
LIBOBJS=''
LIBS=''
LIBTOOL=''
LIPO=''
LN_S=''
LTLIBOBJS=''
MAINT='#'
MAINTAINER_MODE_FALSE=''
MAINTAINER_MODE_TRUE='#'
MAKEINFO='${SHELL} "/Users/sikmac2/desktop/curl-7.21.6/missing" --run makeinfo'
MANIFEST_TOOL=''
MANOPT=''
MIMPURE_FALSE=''
MIMPURE_TRUE=''
NM=''
NMEDIT=''
NO_UNDEFINED_FALSE=''
NO_UNDEFINED_TRUE=''
NROFF=''
OBJDUMP=''
OBJEXT=''
OTOOL64=''
OTOOL=''
PACKAGE='curl'
PACKAGE_BUGREPORT='a suitable curl mailing list: http://curl.haxx.se/mail/'
PACKAGE_NAME='curl'
PACKAGE_STRING='curl -'
PACKAGE_TARNAME='curl'
PACKAGE_URL=''
PACKAGE_VERSION='-'
PATH='/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin'
PATH_SEPARATOR=':'
PERL=''
PKGADD_NAME='cURL - a client that groks URLs'
PKGADD_PKG='HAXXcurl'
PKGADD_VENDOR='curl.haxx.se'
PKGCONFIG=''
RANDOM_FILE=''
RANLIB=''
REQUIRE_LIB_DEPS=''
SED='/usr/bin/sed'
SET_MAKE=''
SHELL='/bin/sh'
SONAME_BUMP_FALSE=''
SONAME_BUMP_TRUE=''
SSL_ENABLED=''
STATICLIB_FALSE=''
STATICLIB_TRUE=''
STRIP='strip'
SUPPORT_FEATURES=''
SUPPORT_PROTOCOLS=''
TEST_SERVER_LIBS=''
USE_ARES=''
USE_AXTLS=''
USE_CYASSL=''
USE_EMBEDDED_ARES_FALSE=''
USE_EMBEDDED_ARES_TRUE=''
USE_GNUTLS=''
USE_LIBRTMP=''
USE_LIBSSH2=''
USE_MANUAL_FALSE=''
USE_MANUAL_TRUE=''
USE_NSS=''
USE_OPENLDAP=''
USE_POLARSSL=''
USE_SSLEAY=''
USE_WINDOWS_SSPI=''
VERSION='-'
VERSIONNUM='071506'
ac_ct_AR=''
ac_ct_CC=''
ac_ct_DUMPBIN=''
am__fastdepCC_FALSE=''
am__fastdepCC_TRUE=''
am__include='include'
am__leading_dot='.'
am__quote=''
am__tar='${AMTAR} chof - "$$tardir"'
am__untar='${AMTAR} xf -'
bindir='${exec_prefix}/bin'
build='i386-apple-darwin10.6.0'
build_alias=''
build_cpu='i386'
build_os='darwin10.6.0'
build_vendor='apple'
datadir='${datarootdir}'
datarootdir='${prefix}/share'
docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
dvidir='${docdir}'
exec_prefix='NONE'
host='arm-apple-darwin10'
host_alias='arm-apple-darwin10'
host_cpu='arm'
host_os='darwin10'
host_vendor='apple'
htmldir='${docdir}'
includedir='${prefix}/include'
infodir='${datarootdir}/info'
install_sh='/Users/sikmac2/desktop/curl-7.21.6/install-sh'
libdir='${exec_prefix}/lib'
libexecdir='${exec_prefix}/libexec'
libext=''
localedir='${datarootdir}/locale'
localstatedir='${prefix}/var'
mandir='${datarootdir}/man'
mkdir_p='$(mkinstalldirs)'
oldincludedir='/usr/include'
pdfdir='${docdir}'
prefix='NONE'
program_transform_name='s,x,x,'
psdir='${docdir}'
sbindir='${exec_prefix}/sbin'
sharedstatedir='${prefix}/com'
subdirs=''
sysconfdir='${prefix}/etc'
target_alias=''
## ----------- ##
## confdefs.h. ##
## ----------- ##
/* confdefs.h */
#define PACKAGE_NAME "curl"
#define PACKAGE_TARNAME "curl"
#define PACKAGE_VERSION "-"
#define PACKAGE_STRING "curl -"
#define PACKAGE_BUGREPORT "a suitable curl mailing list: http://curl.haxx.se/mail/"
#define PACKAGE_URL ""
#define PACKAGE "curl"
#define VERSION "-"
#define OS "arm-apple-darwin10"
configure: exit 77

base sur Bavarious les commentaires, j'ai changer toutes les commande à chaque étape, ce sont les mise à jour :

1. export CC='\"/Developer 4.2/Platforms/iPhoneOS.platform/Developer/usr/bin/arm-apple-darwin10-gcc-4.0.1\">
2. export CFLAGS="-isysroot \"/Developer 4.2/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk\""
3. export LDFLAGS="-isysroot \"/Developer 4.2/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk -Wl,-syslibroot \"/Developer 4.2/Platforms/icleaPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk"""
4. export CPP='\"/Developer 4.2/Platforms/iPhoneOS.platform/Developer/usr/bin/cpp">
5. ./configure --disable-shared --without-ssl --without-libssh2 --without-ca-bundle --without-ldap --disable-ldap --host=arm-apple-darwin10

mais il faire le terminal n'a pas exécuté la commande.

je ne comprends pas ce que c'est, quelqu'un peut-il me dire?

Merci