Not able to find libraries if sysroot= tooldir

[Christer Solskogen <christer dot solskogen at gmail dot com>]

Hi!

I'm not sure if this is a bug or intended behavior, so I'll ask here first.

If I configure binutils with --with-sysroot=${PREFIX}/${TARGET} ld 
doesn't find the libraries in ${PREFIX}/${TARGET}/usr/lib even if the 
libraries are there.

binutils was compiled like this:

/home/builder/binutils-2.31/configure --prefix=/opt/cross 
--target=x86_64-blug-linux-gnu 
--with-sysroot=/opt/cross/x86_64-blug-linux-gnu


And it looks to me like it *should* find the libraries.

x86_64-blug-linux-gnu-ld --verbose | grep SEA
SEARCH_DIR("=/opt/cross/x86_64-blug-linux-gnu/lib64"); 
SEARCH_DIR("=/usr/local/lib64"); SEARCH_DIR("=/lib64"); 
SEARCH_DIR("=/usr/lib64"); 
SEARCH_DIR("=/opt/cross/x86_64-blug-linux-gnu/lib"); 
SEARCH_DIR("=/usr/local/lib"); SEARCH_DIR("=/lib"); SEARCH_DIR("=/usr/lib");

The libraries are really there:
$ ls /opt/cross/x86_64-blug-linux-gnu/usr/lib
crt1.o  crti.o  crtn.o  libc.so

This is the error I get from compiling gcc
/tmp/gcc-obj.x86_64-blug-linux-gnu/./gcc/xgcc 
-B/tmp/gcc-obj.x86_64-blug-linux-gnu/./gcc/ 
-B/opt/cross/x86_64-blug-linux-gnu/bin/ 
-B/opt/cross/x86_64-blug-linux-gnu/lib/ -isystem 
/opt/cross/x86_64-blug-linux-gnu/include -isystem 
/opt/cross/x86_64-blug-linux-gnu/sys-include    -O2  -g -O2 -DIN_GCC 
-DCROSS_DIRECTORY_STRUCTURE  -W -Wall -Wwrite-strings -Wcast-qual 
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition 
-isystem ./include   -fpic -mlong-double-80 -DUSE_ELF_SYMVER  -g 
-DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector  -shared 
-nodefaultlibs -Wl,--soname=libgcc_s.so.1 
-Wl,--version-script=libgcc.map -o ./libgcc_s.so.1.tmp -g -O2 -B./ 
_muldi3_s.o _negdi2_s.o _lshrdi3_s.o _ashldi3_s.o _ashrdi3_s.o 
_cmpdi2_s.o _ucmpdi2_s.o _clear_cache_s.o _trampoline_s.o __main_s.o 
_absvsi2_s.o _absvdi2_s.o _addvsi3_s.o _addvdi3_s.o _subvsi3_s.o 
_subvdi3_s.o _mulvsi3_s.o _mulvdi3_s.o _negvsi2_s.o _negvdi2_s.o 
_ctors_s.o _ffssi2_s.o _ffsdi2_s.o _clz_s.o _clzsi2_s.o _clzdi2_s.o 
_ctzsi2_s.o _ctzdi2_s.o _popcount_tab_s.o _popcountsi2_s.o 
_popcountdi2_s.o _paritysi2_s.o _paritydi2_s.o _powisf2_s.o _powidf2_s.o 
_powixf2_s.o _mulhc3_s.o _mulsc3_s.o _muldc3_s.o _mulxc3_s.o _divhc3_s.o 
_divsc3_s.o _divdc3_s.o _divxc3_s.o _bswapsi2_s.o _bswapdi2_s.o 
_clrsbsi2_s.o _clrsbdi2_s.o _fixunssfsi_s.o _fixunsdfsi_s.o 
_fixunsxfsi_s.o _fixsfdi_s.o _fixdfdi_s.o _fixxfdi_s.o _fixunssfdi_s.o 
_fixunsdfdi_s.o _fixunsxfdi_s.o _floatdisf_s.o _floatdidf_s.o 
_floatdixf_s.o _floatundisf_s.o _floatundidf_s.o _floatundixf_s.o 
_divdi3_s.o _moddi3_s.o _divmoddi4_s.o _udivdi3_s.o _umoddi3_s.o 
_udivmoddi4_s.o _udiv_w_sdiv_s.o cpuinfo_s.o sfp-exceptions_s.o 
addtf3_s.o divtf3_s.o multf3_s.o negtf2_s.o subtf3_s.o unordtf2_s.o 
fixtfsi_s.o fixunstfsi_s.o floatsitf_s.o floatunsitf_s.o fixtfdi_s.o 
fixunstfdi_s.o floatditf_s.o floatunditf_s.o fixtfti_s.o fixunstfti_s.o 
floattitf_s.o floatuntitf_s.o extendsftf2_s.o extenddftf2_s.o 
extendxftf2_s.o trunctfsf2_s.o trunctfdf2_s.o trunctfxf2_s.o getf2_s.o 
letf2_s.o eqtf2_s.o _divtc3_s.o _multc3_s.o _powitf2_s.o 
enable-execute-stack_s.o unwind-dw2_s.o unwind-dw2-fde-dip_s.o 
unwind-sjlj_s.o unwind-c_s.o emutls_s.o libgcc.a -lc && rm -f 
./libgcc_s.so && if [ -f ./libgcc_s.so.1 ]; then mv -f ./libgcc_s.so.1 
./libgcc_s.so.1.backup; else true; fi && mv ./libgcc_s.so.1.tmp 
./libgcc_s.so.1 && (echo "/* GNU ld script"; echo "   Use the shared 
library, but some functions are only in"; echo "   the static library. 
*/"; echo "GROUP ( libgcc_s.so.1 -lgcc )" ) > ./libgcc_s.so
/opt/cross/x86_64-blug-linux-gnu/bin/ld: cannot find crti.o: No such 
file or directory
/opt/cross/x86_64-blug-linux-gnu/bin/ld: cannot find -lc
/opt/cross/x86_64-blug-linux-gnu/bin/ld: cannot find crtn.o: No such 
file or directory
collect2: error: ld returned 1 exit status
make[1]: *** [Makefile:985: libgcc_s.so] Error 1
make[1]: Leaving directory 
'/tmp/gcc-obj.x86_64-blug-linux-gnu/x86_64-blug-linux-gnu/libgcc'


*But* if I configure binutils like this 
"/home/builder/binutils-2.31/configure --prefix=/opt/cross 
--target=x86_64-blug-linux-gnu 
--with-sysroot=/opt/cross/x86_64-blug-linux-gnu.sysroot" and put the 
libraries into /opt/cross/x86_64-blug-linux-gnu.sysroot/usr/lib - ld is 
happy.