Indeed the problem was that my distribution was broken; after fixing it 
Sage compiles.

Thanks!

On Wednesday, November 5, 2014 12:55:39 PM UTC+1, Volker Braun wrote:
>
> You get the same error 
> in /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64-linux-gnu/libffi.a? 
> Can you check your log to verify that sage compiled its own gcc? 
>
> Which Debian version is this anyways?
>
> Its weird that you don't have a libffi shared library, if you have root 
> you can try apt-get install libffi-dev 
>
>
> On Wednesday, November 5, 2014 11:19:09 AM UTC, criceto11 wrote:
>>
>> I tried
>> make distclean
>> SAGE_INSTALL_GCC=yes make
>>
>> but I get the same error
>>
>>
>> On Tuesday, November 4, 2014 7:08:51 PM UTC+1, Volker Braun wrote:
>>>
>>> try compiling with Sage's own gcc:
>>>
>>> make distclean
>>> SAGE_INSTALL_GCC=yes make
>>>
>>>
>>> On Tuesday, November 4, 2014 6:02:49 PM UTC, criceto11 wrote:
>>>>
>>>> I cannot anymore compile Sage; I have 3.10-3-amd64 #1 SMP Debian 
>>>> 3.10.11-1 (2013-09-10) x86_64 GNU/Linux
>>>> To work on a ticket I tried compiling from source Sage-6.3 and  
>>>> sage-6.3-x86_64-Linux; in both cases  there is an error compiling ecl
>>>>
>>>> ;;; Note:
>>>> ;;;   Invoking external command:
>>>> ;;;   gcc -o libecl.so 
>>>> -L/home/pernici/packages/sage/sage-6.3-x86_64-Linux/local/var/tmp/sage/build/ecl-13.5.1.p0/src/build/
>>>>  
>>>> c/main.o c/all_symbols2.o liblsp.a libeclmin.a 
>>>> -Wl,--rpath,/home/pernici/packages/sage/sage-6.3-x86_64-Linux/local/lib/ 
>>>> -shared -L/home/pernici/packages/sage/sage-6.3-x86_64-Linux/local/lib 
>>>> -L/home/pernici/packages/sage/sage-6.3-x86_64-Linux/local/lib 
>>>> -Wl,--rpath,/home/pernici/packages/sage/sage-6.3-x86_64-Linux/local/lib 
>>>> -L/home/pernici/packages/sage/sage-6.3-x86_64-Linux/local/lib 
>>>> -Wl,-soname,libecl.so.13.5 -lgmp -lgc -lffi -ldl -lm /usr/bin/ld: 
>>>> /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64-linux-gnu/libffi.a(closures.o):
>>>>  
>>>> relocation R_X86_64_32S against `.rodata' can not be used when making a 
>>>> shared object; recompile with -fPIC
>>>> /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64-linux-gnu/libffi.a: 
>>>> error adding symbols: Bad value
>>>> collect2: error: ld returned 1 exit status
>>>>
>>>> Condition of type: SIMPLE-ERROR
>>>> Error code 1 when executing
>>>> (RUN-PROGRAM "gcc" ("-o" "libecl.so" ...))
>>>>
>>>>

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