Open Source Development

Power Open Source Development

Explore the open source tools and capabilities for building and deploying modern applications on IBM Power platforms including AIX, IBM i, and Linux.


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#Power

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  • 1.  GCC 15

    Posted Wed November 26, 2025 09:17 AM

    RedHat Linux is now officially supporting GCC 15 and our Linux build is already upgraded (and we finally migrated from a custom make system to CMake). Obviously we would like to leverage this work for our AIX build as well. Therefore, I would like to understand whether somebody already successfully compiled GCC 15 on AIX 7.2/7.3 and whether we can have hopes for an (s)rpm soon (even a Beta is fine).

    We would have a much easier time convincing management to retain an AIX build of our product if we could migrate AIX to the same toolchain that we use for Linux.



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    Florian Wiesner
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  • 2.  RE: GCC 15

    Posted Thu November 27, 2025 01:28 AM

    Hi Florian,

    Yes. We should be building gcc15 for AIX.

    We are starting the gcc15 port work this week and let you know it's status in about 2 weeks, and also the timeline when this can be available on AIX Toolbox.



    ------------------------------
    SANGAMESH
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  • 3.  RE: GCC 15

    Posted Thu November 27, 2025 04:16 PM

    awesome! thanks for the update



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    Florian Wiesner
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  • 4.  RE: GCC 15

    Posted Mon December 15, 2025 05:17 AM

    Hi Sangamesh,

    any first ideas on the timeline? We're super eager to try it out!

    Regards,

    Florian



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    Florian Wiesner
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  • 5.  RE: GCC 15

    Posted Tue December 16, 2025 08:17 AM

    Hi Florian,

    We are able to build gcc15 rpms.

    But it would take sometime to evaluate them and resolve if any unknown and major issues we find.

    Mostly by end of January 2026 we can publish them on to AIX toolbox.



    ------------------------------
    SANGAMESH
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  • 6.  RE: GCC 15

    Posted Tue December 16, 2025 12:54 AM

    Hi Sangamesh,

    I'm really interested to see the gcc-15 port be complete - meaning the new gcobol frontend to be included.

    ... but as it is currently only supporting x86_64 and arm64 I guess that's out of scope? It still would be interesting to see how far you get, after all it technically only needs a processor with float128 support (as far as I've followed, not sure if this still applies to gcc-15).



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    Simon Sobisch
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  • 7.  RE: GCC 15

    Posted Tue December 16, 2025 08:29 AM

    Having gcobol support in AIX looks to be a involved effort.

    In AIX default is IBM extended double precision floating point.

    We are explore if using extended double precision floating point numbers works with gcobol and gcc15.



    ------------------------------
    SANGAMESH
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