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Re: Should --with-build-sysroot be default to --with-sysroot?
On Fri, May 25, 2012 at 11:40 AM, H.J. Lu <hjl.tools@gmail.com> wrote:
> On Fri, May 25, 2012 at 11:36 AM, NightStrike <nightstrike@gmail.com> wrote:
>> Under what conditions does it fail? ?We use it daily at mingw-w64.
>>
>> On Fri, May 25, 2012 at 2:33 PM, H.J. Lu <hjl.tools@gmail.com> wrote:
>>> When --with-sysroot is used to configure gcc, build will usually fail
>>> if ?--with-build-sysroot isn't set. ?Should ?--with-build-sysroot be set to
>>> the same value as --with-sysroot by default if --with-sysroot is used?
>>>
>
> I am building GCC 4.7 with sysroot at /usr/gcc-x32-4.7/x86_64-linux
> to support i386, x86-64 and x32. ?I configured GCC 4.7 with
>
> ? ? ? ?--target=x86_64-linux \
> ? ? ? ?--enable-languages=c,c++,fortran --with-demangler-in-ld --enable-initfin
> i-array --with-multilib-list=m32,m64,mx32 \
> ? ? ? ? \
> ? ? ? ?--with-sysroot=/usr/gcc-x32-4.7/x86_64-linux \
> ? ? ? ?--prefix=/usr/gcc-x32-4.7 \
> ? ? ? ?--with-local-prefix=/usr/local
>
> Build fails when compiling libgcc since ./gcc/xgcc -B.../gcc/ can't
> find stdio.h. ?After adding --with-build-sysroot=/usr/gcc-x32-4.7/x86_64-linux,
> it builds fine.
>
It was a pilot error.
--
H.J.