A colleague of mine reported that he could not link a C++17 program which makes use of std::filesystem. On Linux this requires linking against libstdc++fs.a, but we don't see this in the AIX packages.

Is it possible that libstdc++fs.a was not packaged by mistake? Or is it elsewhere? Or does GCC not yet support this functionality on AIX?

Looking at the AIX package libstdcplusplus-devel-8.3.0-2.aix7.1.ppc.rpm, I see the filesystem header, but no corresponding library:
$ rpm -qlp libstdcplusplus-devel-8.3.0-2.aix7.1.ppc.rpm | egrep '(filesystem|lib[^/]*fs)'
/opt/freeware/lib/gcc/powerpc-ibm-aix7.1.0.0/8.3.0/include/c++/filesystem
Perhaps it should be in the non-devel package alongside libstdc++.a, but it isn't there either.

Whereas the comparable Red Hat package has both the header and library:
$ rpm -ql devtoolset-8-libstdc++-devel-8.3.1-3.1.el7.x86_64 | egrep '(filesystem|lib[^/]*fs)'
/opt/rh/devtoolset-8/root/usr/include/c++/8/experimental/filesystem
/opt/rh/devtoolset-8/root/usr/include/c++/8/filesystem
/opt/rh/devtoolset-8/root/usr/lib/gcc/x86_64-redhat-linux/8/libstdc++fs.a

------------------------------
John Scott
------------------------------

#AIXOpenSource

Hi John,

Yes currently we are not building this library for AIX and not shipping.
We need to do some investigation if this can be build and supported on AIX.

------------------------------
SANKET RATHI
------------------------------

Original Message:
Sent: Thu July 09, 2020 07:17 PM
From: John Scott
Subject: GCC 8 libstdc++ missing std::filesystem library libstdc++fs.a?

A colleague of mine reported that he could not link a C++17 program which makes use of std::filesystem. On Linux this requires linking against libstdc++fs.a, but we don't see this in the AIX packages.

Is it possible that libstdc++fs.a was not packaged by mistake? Or is it elsewhere? Or does GCC not yet support this functionality on AIX?

Looking at the AIX package libstdcplusplus-devel-8.3.0-2.aix7.1.ppc.rpm, I see the filesystem header, but no corresponding library:
$ rpm -qlp libstdcplusplus-devel-8.3.0-2.aix7.1.ppc.rpm | egrep '(filesystem|lib[^/]*fs)'
/opt/freeware/lib/gcc/powerpc-ibm-aix7.1.0.0/8.3.0/include/c++/filesystem
Perhaps it should be in the non-devel package alongside libstdc++.a, but it isn't there either.

Whereas the comparable Red Hat package has both the header and library:
$ rpm -ql devtoolset-8-libstdc++-devel-8.3.1-3.1.el7.x86_64 | egrep '(filesystem|lib[^/]*fs)'
/opt/rh/devtoolset-8/root/usr/include/c++/8/experimental/filesystem
/opt/rh/devtoolset-8/root/usr/include/c++/8/filesystem
/opt/rh/devtoolset-8/root/usr/lib/gcc/x86_64-redhat-linux/8/libstdc++fs.a

------------------------------
John Scott
------------------------------

#AIXOpenSource

Ok. Thanks for your reply. I hope you can enable it in a future update.

------------------------------
John Scott
------------------------------

Original Message:
Sent: Fri July 10, 2020 02:30 AM
From: SANKET RATHI
Subject: GCC 8 libstdc++ missing std::filesystem library libstdc++fs.a?

Hi John,

Yes currently we are not building this library for AIX and not shipping.
We need to do some investigation if this can be build and supported on AIX.

------------------------------
SANKET RATHI

Original Message:
Sent: Thu July 09, 2020 07:17 PM
From: John Scott
Subject: GCC 8 libstdc++ missing std::filesystem library libstdc++fs.a?

A colleague of mine reported that he could not link a C++17 program which makes use of std::filesystem. On Linux this requires linking against libstdc++fs.a, but we don't see this in the AIX packages.

Is it possible that libstdc++fs.a was not packaged by mistake? Or is it elsewhere? Or does GCC not yet support this functionality on AIX?

Looking at the AIX package libstdcplusplus-devel-8.3.0-2.aix7.1.ppc.rpm, I see the filesystem header, but no corresponding library:
$ rpm -qlp libstdcplusplus-devel-8.3.0-2.aix7.1.ppc.rpm | egrep '(filesystem|lib[^/]*fs)'
/opt/freeware/lib/gcc/powerpc-ibm-aix7.1.0.0/8.3.0/include/c++/filesystem
Perhaps it should be in the non-devel package alongside libstdc++.a, but it isn't there either.

Whereas the comparable Red Hat package has both the header and library:
$ rpm -ql devtoolset-8-libstdc++-devel-8.3.1-3.1.el7.x86_64 | egrep '(filesystem|lib[^/]*fs)'
/opt/rh/devtoolset-8/root/usr/include/c++/8/experimental/filesystem
/opt/rh/devtoolset-8/root/usr/include/c++/8/filesystem
/opt/rh/devtoolset-8/root/usr/lib/gcc/x86_64-redhat-linux/8/libstdc++fs.a

------------------------------
John Scott
------------------------------

#AIXOpenSource