[Bug ada/79903] New: When building RTEMS for SPARC with Ada support, the build fails because of missing #ifdef

[ttsiodras at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79903

            Bug ID: 79903
           Summary: When building RTEMS for SPARC with Ada support, the
                    build fails because of missing #ifdef
           Product: gcc
           Version: 6.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ada
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ttsiodras at gmail dot com
  Target Milestone: ---

I have just successfully built the latest GCC cross-compiling toolchain for
RTEMS/SPARC with Ada support - but to do so, I had to patch the GCC 6.3 source
in one place:

    diff --git a/gcc-6.3.0/gcc/ada/socket.c b/gcc-6.3.0/gcc/ada/socket.c
    index f5fb663..5cdd656 100644
    --- a/gcc-6.3.0/gcc/ada/socket.c
    +++ b/gcc-6.3.0/gcc/ada/socket.c
    @@ -202,7 +202,7 @@ __gnat_gethostbyaddr (const char *addr, int len, int
type,
       struct hostent *rh;
       int ri;

    -#if defined(__linux__) || defined(__GLIBC__)
    +#if defined(__linux__) || defined(__GLIBC__) || defined(__rtems__)
       (void) gethostbyaddr_r (addr, len, type, ret, buf, buflen, &rh,
h_errnop);
     #else
       rh = gethostbyaddr_r (addr, len, type, ret, buf, buflen, h_errnop);

Without that patch, the RTEMS RSB build fails - at least for the following
version of the RSB:

    $ # RTEMS Source Builder: commit 4c5eb8969451c4ea0997b3caa98bfe80fe15da69
    $ ../source-builder/sb-set-builder --log=sparc2.log
--prefix=/opt/rtems-4.12 --without-rtems --with-ada 4.12/rtems-sparc

Hope this helps.

Kind regards,
Thanassis.

--
Thanassis Tsiodras
Real-time Embedded Software Engineer 
European Space Agency
System, Software and Technology Department