On Mon, 13 Oct 2025 at 20:06, Joel Sherrill <[email protected]> wrote:

> RTEMS has carried this patch for too long and it was posted to gcc-patches
> last month.
>

But not CC'd to libstdc++ :-)


>
> Any commits rom libstdc++ folks or is it OK to commit?
>

The component in the first line of the commit msg should be just
"libstdc++" not "libstdc++-v3" but otherwise this looks fine for trunk (and
release branches too).




>
> Thanks.
>
> --joel
>
> On Wed, Oct 1, 2025 at 3:44 PM Joel Sherrill <[email protected]> wrote:
>
>> From: Chris Johns <[email protected]>
>>
>> libstdc++-v3/ChangeLog:
>>
>>         * configure: Regenerate.
>>         * configure.ac (newlib, *-rtems*): Add HAVE_SYS_IOCTL_H,
>>         HAVE_SYS_STAT_H, HAVE_SYS_TYPES_H, HAVE_S_ISREG, HAVE_UNISTD_H,
>>         HAVE_UNLINKAT, _GLIBCXX_USE_CHMOD, _GLIBCXX_USE_MKDIR,
>>         _GLIBCXX_USE_CHDIR, _GLIBCXX_USE_GETCWD, _GLIBCXX_USE_UTIME,
>>         _GLIBCXX_USE_LINK, _GLIBCXX_USE_READLINK, _GLIBCXX_USE_SYMLINK,
>>         _GLIBCXX_USE_TRUNCATE and _GLIBCXX_USE_FDOPENDIR.
>> ---
>>  libstdc++-v3/configure    | 44 ++++++++++++++++++++++++++++++++++++++-
>>  libstdc++-v3/configure.ac | 21 +++++++++++++++++++
>>  2 files changed, 64 insertions(+), 1 deletion(-)
>>
>> diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
>> index c0eaeb97c49..8afd946ca50 100755
>> --- a/libstdc++-v3/configure
>> +++ b/libstdc++-v3/configure
>> @@ -28369,6 +28369,14 @@ rm -f core conftest.err conftest.$ac_objext
>> conftest.$ac_ext
>>
>>          $as_echo "#define HAVE_LINK 1" >>confdefs.h
>>
>> +        $as_echo "#define HAVE_SYS_IOCT4YL_H 1" >>confdefs.h
>> +
>> +        $as_echo "#define HAVE_SYS_STAT_H 1" >>confdefs.h
>> +
>> +        $as_echo "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
>> +
>> +        $as_echo "#define HAVE_S_ISREG 1" >>confdefs.h
>> +
>>          $as_echo "#define HAVE_QUICK_EXIT 1" >>confdefs.h
>>
>>          $as_echo "#define HAVE_READLINK 1" >>confdefs.h
>> @@ -28383,8 +28391,42 @@ rm -f core conftest.err conftest.$ac_objext
>> conftest.$ac_ext
>>
>>          $as_echo "#define HAVE_SYMLINK 1" >>confdefs.h
>>
>> +        $as_echo "#define HAVE_SYS_IOCT4YL_H 1" >>confdefs.h
>> +
>> +        $as_echo "#define HAVE_SYS_STAT_H 1" >>confdefs.h
>> +
>> +        $as_echo "#define HAVE_SYS_TYPES_H 1" >>confdefs.h
>> +
>> +        $as_echo "#define HAVE_S_ISREG 1" >>confdefs.h
>> +
>>          $as_echo "#define HAVE_TRUNCATE 1" >>confdefs.h
>>
>> +        $as_echo "#define HAVE_UNISTD_H 1" >>confdefs.h
>> +
>> +        $as_echo "#define HAVE_UNLINKAT 1" >>confdefs.h
>> +
>> +        $as_echo "#define HAVE_USLEEP 1" >>confdefs.h
>> +
>> +        $as_echo "#define _GLIBCXX_USE_CHMOD 1" >>confdefs.h
>> +
>> +        $as_echo "#define _GLIBCXX_USE_MKDIR 1" >>confdefs.h
>> +
>> +        $as_echo "#define _GLIBCXX_USE_CHDIR 1" >>confdefs.h
>> +
>> +        $as_echo "#define _GLIBCXX_USE_GETCWD 1" >>confdefs.h
>> +
>> +        $as_echo "#define _GLIBCXX_USE_UTIME 1" >>confdefs.h
>> +
>> +        $as_echo "#define _GLIBCXX_USE_LINK 1" >>confdefs.h
>> +
>> +        $as_echo "#define _GLIBCXX_USE_READLINK 1" >>confdefs.h
>> +
>> +        $as_echo "#define _GLIBCXX_USE_SYMLINK 1" >>confdefs.h
>> +
>> +        $as_echo "#define _GLIBCXX_USE_TRUNCATE 1" >>confdefs.h
>> +
>> +        $as_echo "#define _GLIBCXX_USE_FDOPENDIR 1" >>confdefs.h
>> +
>>          $as_echo "#define HAVE_USLEEP 1" >>confdefs.h
>>
>>
>> @@ -53544,7 +53586,7 @@ $as_echo "$glibcxx_cv_libbacktrace_atomics" >&6; }
>>      CXXFLAGS='-O0 -S'
>>
>>      cat > conftest.$ac_ext << EOF
>> -#line 53547 "configure"
>> +#line 53589 "configure"
>>  #include <stddef.h>
>>  int main()
>>  {
>> diff --git a/libstdc++-v3/configure.ac b/libstdc++-v3/configure.ac
>> index 0bf219174fe..02b86ae8c44 100644
>> --- a/libstdc++-v3/configure.ac
>> +++ b/libstdc++-v3/configure.ac
>> @@ -399,6 +399,10 @@ dnl # rather than hardcoding that information.
>>          AC_DEFINE(HAVE_ALIGNED_ALLOC)
>>          AC_DEFINE(HAVE_AT_QUICK_EXIT)
>>          AC_DEFINE(HAVE_LINK)
>> +        AC_DEFINE(HAVE_SYS_IOCT4YL_H)
>> +        AC_DEFINE(HAVE_SYS_STAT_H)
>> +        AC_DEFINE(HAVE_SYS_TYPES_H)
>> +        AC_DEFINE(HAVE_S_ISREG)
>>          AC_DEFINE(HAVE_QUICK_EXIT)
>>          AC_DEFINE(HAVE_READLINK)
>>          AC_DEFINE(HAVE_SETENV)
>> @@ -406,7 +410,24 @@ dnl # rather than hardcoding that information.
>>          AC_DEFINE(HAVE_SOCKATMARK)
>>          AC_DEFINE(HAVE_STRERROR_L)
>>          AC_DEFINE(HAVE_SYMLINK)
>> +        AC_DEFINE(HAVE_SYS_IOCT4YL_H)
>> +        AC_DEFINE(HAVE_SYS_STAT_H)
>> +        AC_DEFINE(HAVE_SYS_TYPES_H)
>> +        AC_DEFINE(HAVE_S_ISREG)
>>          AC_DEFINE(HAVE_TRUNCATE)
>> +        AC_DEFINE(HAVE_UNISTD_H)
>> +        AC_DEFINE(HAVE_UNLINKAT)
>> +        AC_DEFINE(HAVE_USLEEP)
>> +        AC_DEFINE(_GLIBCXX_USE_CHMOD)
>> +        AC_DEFINE(_GLIBCXX_USE_MKDIR)
>> +        AC_DEFINE(_GLIBCXX_USE_CHDIR)
>> +        AC_DEFINE(_GLIBCXX_USE_GETCWD)
>> +        AC_DEFINE(_GLIBCXX_USE_UTIME)
>> +        AC_DEFINE(_GLIBCXX_USE_LINK)
>> +        AC_DEFINE(_GLIBCXX_USE_READLINK)
>> +        AC_DEFINE(_GLIBCXX_USE_SYMLINK)
>> +        AC_DEFINE(_GLIBCXX_USE_TRUNCATE)
>> +        AC_DEFINE(_GLIBCXX_USE_FDOPENDIR)
>>          AC_DEFINE(HAVE_USLEEP)
>>
>>          # These functions are defined in librtemscpu.  We don't use
>> --
>> 2.47.3
>>
>>

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