On 2018-03-09 03:55, Aaron M. Ucko wrote:
> Builds of pocl for x32 (admittedly not a release architecture) have
> been failing, as detailed at [1]:
> 
>   cd "/<<PKGBUILDDIR>>/obj-x86_64-linux-gnux32/lib/kernel/host" && 
> /usr/bin/clang-4.0 --target=x86_64-pc-linux-gnu -D_CL_DISABLE_HALF 
> -march=x86-64 -emit-llvm -ffp-contract=off -xc -D__CBUILD__ 
> -fno-stack-protector -fno-PIC -DDORENAME -DVEC128 -I 
> "/<<PKGBUILDDIR>>/lib/kernel/sleef/arch" -I 
> "/<<PKGBUILDDIR>>/lib/kernel/sleef/libm" -I 
> "/<<PKGBUILDDIR>>/lib/kernel/sleef/include" -O1 -o 
> "/<<PKGBUILDDIR>>/obj-x86_64-linux-gnux32/lib/kernel/host/x86-64/v128_sleefsimddp.c.bc"
>  -c "/<<PKGBUILDDIR>>/lib/kernel/sleef/libm/sleefsimddp.c"
>   In file included from 
> /<<PKGBUILDDIR>>/lib/kernel/sleef/libm/sleefsimddp.c:8:
>   In file included from 
> /usr/lib/llvm-4.0/bin/../lib/clang/4.0.1/include/stdint.h:61:
>   /usr/include/stdint.h:26:10: fatal error: 'bits/libc-header-start.h' file 
> not found
> 
> Could you please take a look?  (Note the explicit inappropriate
> -march=x86-64.)

So what is the correct setting for x32 here? I think already
--target=x86_64-pc-linux-gnu is wrong ... (and that one gets
autodetected, not overridden by me)

I need to pass an -march or similar option since pocl does not know
about the "use the compilers default" concept (and does the equivalent
of -march=native by default)


Andreas

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