Building rtems toolchain with fortran support error

[Joel Sherrill]

Following up again. So far a handful of architectures have built OK for
me but you were unlucky enough to try the one that failed -- i386:

/home/joel/rtems-4.11-work/rtems-source-builder/rtems/build/i386-rtems4.12-gcc-6-20161110-newlib-2.4.0.20161025-x86_64-linux-gnu-1/gcc-6-20161110/newlib/libc/include/ieeefp.h:152:2:
error: #error "double and long double are the same size but LDBL_EQ_DBL is
not defined"
 #error "double and long double are the same size but LDBL_EQ_DBL is not
defined"
  ^~~~~

Following up on newlib about this.

--joel

On Mon, Nov 21, 2016 at 12:51 PM, Joel Sherrill <joel at rtems.org> wrote:

> Please update your RSB and try again. I successfully built a SPARC 4.12
> toolset using the current RSB master.
>
> Please follow up and let us know what happens.
>
> -joel
>
> On Mon, Nov 21, 2016 at 9:24 AM, Ricardo Derbes <rmderbes at gmail.com>
> wrote:
>
>> Hello.
>> I'm trying to build rtems toolchain for i386 using
>> rtems-source-builder with fortran support (--with-fortran option).
>> The RSB I'm using has been dowloaded from git, commit
>> 534332f22a66f16b4022e87ae50c11ff20c98dcb from Sep 12 2016.
>>
>> The full command line is:
>> ../source-builder/sb-set-builder
>> --prefix=~/devel4.12-i386.fortran/rtems4.12 4.12/rtems-i386
>> --without-rtems --with-fortran
>>
>> When trying to build gcc, it fails with the following errors (excerpt
>> from report file
>> rsb-report-i386-rtems4.12-gcc-6-20160609-newlib-2.4.0.201605
>> 27-x86_64-linux-gnu-1.txt):
>>
>> Tail of the build log:
>> ~/devel4.12-i386.fortran/rtems-source-builder/rtems/build/
>> i386-rtems4.12-gcc-6-20160609-newlib-2.4.0.20160527-x86_64-
>> linux-gnu-1/gcc-6-20160609/newlib/libc/include/ieeefp.h:196:38:
>> error: 'EXT_FRACHBITS' undeclared here (not in a function)
>> __ieee_ext_field_type  ext_frach : EXT_FRACHBITS;
>>                                       ^~~~~~~~~~~~~
>> ~/devel4.12-i386.fortran/rtems-source-builder/rtems/build/
>> i386-rtems4.12-gcc-6-20160609-newlib-2.4.0.20160527-x86_64-
>> linux-gnu-1/gcc-6-20160609/newlib/libc/include/ieeefp.h:196:26:
>> error: bit-field 'ext_frach' width not an integer constant
>> __ieee_ext_field_type  ext_frach : EXT_FRACHBITS;
>>                           ^~~~~~~~~
>> /home/dev/devel4.12-i386.fortran/rtems-source-builder/rtems/
>> build/i386-rtems4.12-gcc-6-20160609-newlib-2.4.0.20160527
>> -x86_64-linux-gnu-1/gcc-6-20160609/newlib/libc/include/ieeefp.h:197:3:
>> error: unknown type name '__ieee_ext_field_type'
>>    __ieee_ext_field_type  ext_exp   : EXT_EXPBITS;
>>    ^~~~~~~~~~~~~~~~~~~~~
>> ~/devel4.12-i386.fortran/rtems-source-builder/rtems/build/
>> i386-rtems4.12-gcc-6-20160609-newlib-2.4.0.20160527-x86_64-
>> linux-gnu-1/gcc-6-20160609/newlib/libc/include/ieeefp.h:197:38:
>> error: 'EXT_EXPBITS' undeclared here (not in a function)
>> __ieee_ext_field_type  ext_exp   : EXT_EXPBITS;
>>                                       ^~~~~~~~~~~
>> /home/dev/devel4.12-i386.fortran/rtems-source-builder/rtems/
>> build/i386-rtems4.12-gcc-6-20160609-newlib-2.4.0.20160527
>> -x86_64-linux-gnu-1/gcc-6-20160609/newlib/libc/include/ieeefp.h:197:26:
>> error: bit-field 'ext_exp' width not an integer constant
>> __ieee_ext_field_type  ext_exp   : EXT_EXPBITS;
>>                           ^~~~~~~
>> ~/devel4.12-i386.fortran/rtems-source-builder/rtems/build/
>> i386-rtems4.12-gcc-6-20160609-newlib-2.4.0.20160527-x86_64-
>> linux-gnu-1/gcc-6-20160609/newlib/libc/include/ieeefp.h:198:3:
>> error: unknown type name '__ieee_ext_field_type'
>> __ieee_ext_field_type  ext_sign  : 1;
>>    ^~~~~~~~~~~~~~~~~~~~~
>>
>> As for my application I need fortran support, how can I fix this problem?
>> As long I can see, all symbols that the compiler claims as undeclared
>> are indeed declared and accessible in file
>> ~/devel4.12-i386.fortran/rtems-source-builder/rtems/build/
>> i386-rtems4.12-gcc-6-20160609-newlib-2.4.0.20160527-x86_64-
>> linux-gnu-1/gcc-6-20160609/newlib/libc/include/ieeefp.h
>> May be it's missing a symbol, e.g a proper value for LDBL_MANT_DIG ?
>>
>> Thank you
>> _______________________________________________
>> users mailing list
>> users at rtems.org
>> http://lists.rtems.org/mailman/listinfo/users
>>
>
>
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