Created attachment 719 [details]
buildroot config file

Hello all,


I started a new project where I wanted to use an external toolchain previously built with buildroot. For further details please read the buildroot configuration file attached to this report.

make fails with these settings because with this toolchain 'arm-linux-gcc -v' returns three occurrences of --sysroot ("Configured" // "(reconfigured)" // "(reconfigured)" ). I guess (yet not sure) this happens because this toolchain has been rebuild a few times.

Hence you might consider the bug comes from my toolchain, or not ;) 
My patch comes with the next report.

Best regards,
Damien


=================================
Here is the result of buildroot make:
buildroot$ make V=1

Checking build system dependencies:
BUILDROOT_DL_DIR clean:				Ok
CC clean:					Ok
CXX clean:					Ok
CPP clean:					Ok
CFLAGS clean:					Ok
INCLUDES clean:					Ok
CXXFLAGS clean:					Ok
which installed:				Ok
sed works:					Ok (/bin/sed)
GNU make version '3.81':			Ok
C compiler '/usr/bin/gcc'
C compiler version '4.3.2':			Ok
C++ compiler '/usr/bin/g++'
C++ compiler version '4.3.2':			Ok
awk installed:					Ok
bash installed:					Ok
bison installed:				Ok
flex installed:					Ok
gettext installed:				Ok
makeinfo installed:				Ok
patch installed:				Ok
Build system dependencies:			Ok

rm -rf /mnt/fractal/buildroot/temp/buildroot/output/build/buildroot-config
mkdir -p /mnt/fractal/buildroot/temp/buildroot/output/build
cp -dpRf package/config/buildroot-config /mnt/fractal/buildroot/temp/buildroot/output/build/buildroot-config
Checking external toolchain settings
if ! test -x /mnt/fractal/buildroot/buildroot/output/staging/usr/bin/arm-linux-gcc ; then echo "Cannot find cross-compiler /mnt/fractal/buildroot/buildroot/output/staging/usr/bin/arm-linux-gcc" ; exit 1 ; fi ; 
EXT_TOOLCHAIN_TARGET=arm-linux-uclibcgnueabi ; if echo ${EXT_TOOLCHAIN_TARGET} | grep -q 'eabi$' ; then EXT_TOOLCHAIN_ABI="eabi" ; else EXT_TOOLCHAIN_ABI="oabi" ; fi ; if [ x == x"y" -a ${EXT_TOOLCHAIN_ABI} == "eabi" ] ; then echo "Incorrect ABI setting" ; exit 1 ; fi ; if [ xy == x"y" -a ${EXT_TOOLCHAIN_ABI} == "oabi" ] ; then echo "Incorrect ABI setting" ; exit 1 ; fi ; 
SYSROOT_DIR="/mnt/fractal/buildroot/buildroot/output/staging /mnt/fractal/buildroot/buildroot/output/staging /mnt/fractal/buildroot/buildroot/output/staging"; if ! test -f ${SYSROOT_DIR}/lib/ld-uClibc.so.* ; then echo "Incorrect selection of the C library"; exit -1; fi; UCLIBC_CONFIG_FILE=${SYSROOT_DIR}/usr/include/bits/uClibc_config.h ; IS_IN_LIBC=`grep -q "#define __UCLIBC_HAS_LFS__ 1" ${UCLIBC_CONFIG_FILE} && echo y` ; if [ x != x"y" -a x${IS_IN_LIBC} == x"y" ] ; then echo "Large file support available in C library, please enable BR2_LARGEFILE" ; exit 1 ; fi ; if [ x == x"y" -a x${IS_IN_LIBC} != x"y" ] ; then echo "Large file support not available in C library, please disable BR2_LARGEFILE" ; exit 1 ; fi ; IS_IN_LIBC=`grep -q "#define __UCLIBC_HAS_IPV6__ 1" ${UCLIBC_CONFIG_FILE} && echo y` ; if [ x != x"y" -a x${IS_IN_LIBC} == x"y" ] ; then echo "IPv6 support available in C library, please enable BR2_INET_IPV6" ; exit 1 ; fi ; if [ x == x"y" -a x${IS_IN_LIBC} != x"y" ] ; then echo "IPv6 support not available in C library, please disable BR2_INET_IPV6" ; exit 1 ; fi ; IS_IN_LIBC=`grep -q "#define __UCLIBC_HAS_RPC__ 1" ${UCLIBC_CONFIG_FILE} && echo y` ; if [ x != x"y" -a x${IS_IN_LIBC} == x"y" ] ; then echo "RPC support available in C library, please enable BR2_INET_RPC" ; exit 1 ; fi ; if [ x == x"y" -a x${IS_IN_LIBC} != x"y" ] ; then echo "RPC support not available in C library, please disable BR2_INET_RPC" ; exit 1 ; fi ; IS_IN_LIBC=`grep -q "#define __UCLIBC_HAS_LOCALE__ 1" ${UCLIBC_CONFIG_FILE} && echo y` ; if [ x != x"y" -a x${IS_IN_LIBC} == x"y" ] ; then echo "Locale support available in C library, please enable BR2_ENABLE_LOCALE" ; exit 1 ; fi ; if [ x == x"y" -a x${IS_IN_LIBC} != x"y" ] ; then echo "Locale support not available in C library, please disable BR2_ENABLE_LOCALE" ; exit 1 ; fi ; IS_IN_LIBC=`grep -q "#define __UCLIBC_HAS_WCHAR__ 1" ${UCLIBC_CONFIG_FILE} && echo y` ; if [ x != x"y" -a x${IS_IN_LIBC} == x"y" ] ; then echo "Wide char support available in C library, please enable BR2_USE_WCHAR" ; exit 1 ; fi ; if [ x == x"y" -a x${IS_IN_LIBC} != x"y" ] ; then echo "Wide char support not available in C library, please disable BR2_USE_WCHAR" ; exit 1 ; fi ; IS_IN_LIBC=`grep -q "#define __UCLIBC_HAS_PROGRAM_INVOCATION_NAME__ 1" ${UCLIBC_CONFIG_FILE} && echo y` ; if [ x != x"y" -a x${IS_IN_LIBC} == x"y" ] ; then echo "Program invocation support available in C library, please enable BR2_PROGRAM_INVOCATION" ; exit 1 ; fi ; if [ x == x"y" -a x${IS_IN_LIBC} != x"y" ] ; then echo "Program invocation support not available in C library, please disable BR2_PROGRAM_INVOCATION" ; exit 1 ; fi ; 
/bin/sh: line 0: test: too many arguments
Incorrect selection of the C library
make: *** [/mnt/fractal/buildroot/temp/buildroot/output/stamps/ext-toolchain-installed] Erreur 255