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1. Another "bug or feature" type alias

   Variables of non-related classes can't be assigned to each other. E.g. wrong:    f := b type = type ... creates a new type.   TRec2 = type TRec; then "r := r2" will…

   MOMartin Frb, Ondrej Pokorny11-4-2026 08:09 UTC
   1
2. wiki down

   Any progress in bringing the wiki up and running? Why is it taking so long? Is there a mirror site somewhere?

   WWerner Pamler11-3-2026 14:30 UTC
   0
3. fpc tests - question

   If I wanted to create a testcase in fpc.... I put a new file into   tests/test/tmytest.pp If that test needs to have units it uses, I can add   tests/test/umyunit.pp…

   MMartin Frb11-3-2026 13:53 UTC
   0
4. bug or feature? type alias

   TFoo = type TBar creates a new unique (non assignment compatible) type. At least for non-base types (e.g records). In the below that works, except the new type is not…

   MMMartin Frb, Michael Van Canneyt11-2-2026 10:18 UTC
   1
5. Questions on RTTI

   Can someone check the below statements for correctness please? --------------------------------------------------- - A  class itself has always some RTTI of its own.…

   MMSMartin Frb, Michael Van Canneyt, Sven Barth10-29-2026 21:04 UTC
   2
6. Error building FPC main in Fedora 44 ("read-only segment has dynamic relocations", in linking pas2js)

   Is this a known bug? Any directions to investigate this? Free Pascal Compiler version 3.2.2 [2021/05/16] for x86_64 (downloaded from SourceForge, IIRC) Output: (...)…

   FFlávio Etrusco10-29-2026 18:22 UTC
   1
7. composed record with private/public => documented behaviour?

   The fields of the embedded record become available in the outer record. What visibility do they get (I can and have tested, and results make sense / but I want to know,…

   MMMartin Frb, Mattias Gaertner10-28-2026 07:37 UTC
   1
8. published versus advanced rtti

   Afaik the published keywords only purpose is to add RTTI (or do nothing, depending on $M). Afaik using advanced rtti (I haven't done yet) you can add RTTI to other…

   MMMartin Frb, Michael Van Canneyt10-23-2026 09:42 UTC
   2
9. Fwd: New Issue: Accessibility Declarations for FreePascal

   Can someone comment on this? Do we have C-like distinction between access and visible? I would think not? If you can access it you can see it, and vice versa? I can't…

   MMTMartin Frb, Marco van de Voort, Tomas Hajny10-21-2026 09:17 UTC
   4
10. Val() behaviour in a function depends on LongStrings ON/OFF?

    This is driving me crazy. Val('256', AByte, Code) should fail. It does, but sometimes it does not. =========== uses sysutils; {$PUSH} {$R+} function…

    BBart10-17-2026 21:27 UTC
    5
11. Feedback please - semantics of private vs strict private

    I started a proposal to add strict private/protected to DWARF. If I could have some thoughts on the below question please. If I understand that correct, the idea may be…

    MMartin Frb10-13-2026 10:44 UTC
    1
12. Currency update

    I have to apologise for my recent absence and lack of progress fixing the bugs I've caused.  I'm currently fixing the failure in webtbs/tw41865c.pp which is centred…

    JSJ. Gareth "Kit" Moreton, Sven Harazim10-7-2026 19:52 UTC
    2
13. TStrings.IndexOf(String, Integer) question

    TStrings has - function IndexOf(const S: string): Integer; virtual; - function IndexOf(const S: string; aStart : Integer): Integer; virtual; TStringList has - function…

    BMBart, Michael Van Canneyt10-4-2026 20:40 UTC
    2
14. stat and nil

    Are older Linux versions safe to  call stat with a nil pointer? https://man7.org/linux/man-pages/man2/stat.2.html (According to google 6.11 is from 2024 / if so, older…

    MMartin Frb10-4-2026 09:21 UTC
    1
15. Merge requests

    I've seen a few features been added by MR recently. So I wanted to take the opportunity and push some of my MR into view again. 1) Most awaited by many users: The…

    MMartin Frb9-30-2026 13:56 UTC
    0
16. private visibility question

    If I have the below TFoo, and in ANOTHER unit I declare var   foo: TFoo then I can access   foo.e := a1; This works even though "a1" is private and not visible. But…

    MMartin Frb9-28-2026 09:20 UTC
    1
17. is not operator

    I would like to implement the "is not" operator in fpc. It was introduced in Delphi 13. For example: if Obj is not TStringList then ... It has the same precedence as…

    MABMattias Gaertner, Adriaan van Os, Bart9-23-2026 09:12 UTC
    44
18. TViHashList and TFPHashObjectList in compiler

    I studied the compiler internals by debugging it. Does TViHashList have any documentation or diagram or anything? It differs from many other hash maps. Is it based on…

    JMRJuha Manninen, Michael Van Canneyt, runewalsh9-22-2026 15:54 UTC
    3
19. Internal error 4179

    I'm currently on Ubuntu on a AMD64 system. Compiling something with 3.2.2, I got an Internal Error 4179. I removed 3.2.2 and installed 3.2.4-rc2. I again get this error.…

    IKIl Grande Beppe, Karoly Balogh9-18-2026 09:23 UTC
    1
20. TDirectory.Delete(SomePath, True) possibly silenty deletes the contents of symlinks/junctions

    On Lazarus there has been a bugreport that DeleteDirectory follows symlinks and unexpectedly removes their contents instead of just deleting the symlink (or junction).…

    BBart9-13-2026 12:30 UTC
    2
21. fixed bug in crosscompiling not available in fpc 3.2.x

    The following fix is not included in the last release candidate and it causes problems when using cross compiling (compile from win64 for linux).…

    DDimitris Kounalakis9-12-2026 08:37 UTC
    0
22. Subject: six issues from a native aarch64-win64 port (three of them not target specific)

    I opened six issues over the past week, each with a patch. Here is where they come from. I ported mORMot 2 (~616k lines) to Windows on ARM, with a trunk compiler built…

    SSSven Harazim, Sven Barth9-7-2026 13:13 UTC
    6
23. ppcrossx64 build on macOS darwin with ppca64 is failing

    I'm trying to build ppcrossx64 on my macOS darwin Tahoe apple silicon machine with a ppca64 built from fpc trunk and Xcode 26.6 and no Rosetta running. Should I expect…

    DJKDavid Jenkins, J. Gareth "Kit" Moreton, Karoly Balogh9-1-2026 04:42 UTC
    6
24. Invalid vTypeInfo pointer for _VMT_$SYSUTILS$_$TMARSHALLER

    This is strange and I don't know if I should report it as a bug If I walk the Mach-O class symbols in the executable (skipping indirect symbols) and get the VMT pointer…

    AAdriaan van Os8-29-2026 15:37 UTC
    0
25. Consideration on "$CapturerClass" - reference to function - and debugging

    I understand that a reference to a function is an interface, and therefore the only really know think is that it has zero, one or more functions, and the definition of…

    MSMartin Frb, Sven Barth8-25-2026 20:23 UTC
    3
26. Does 3.2.3 still support Windows XP ?

    Still checking what causes it, but somewhere since February something changed. The IDE fails with cant find entry point for gettickcount64 there is a commit SHA-1:…

    MMSMartin Frb, Marco van de Voort, Sven Barth8-12-2026 19:03 UTC
    10
27. CORBA and GUID => changes?

    According to https://forum.lazarus.freepascal.org/index.php?topic=74492 corba interfaces without guid no longe compile? If so, why? e.g. a base "class" (interface), that…

    MHSMartin Frb, Hairy Pixels, Sven Barth7-31-2026 18:12 UTC
    5
28. -ix

    The -ix option has no entry in ppc... -h. How does it work? Mattias

    MKMattias Gaertner, Karoly Balogh7-29-2026 09:56 UTC
    1
29. Mode macpas macros are broken

    I looked at issue #41731 <https://gitlab.com/freepascal.org/fpc/source/-/work_items/41731> and found that it is caused by commit 166a24ae7748c6a5f724325950c7533a25597b1f…

    AMAdriaan van Os, Michael Van Canneyt7-24-2026 07:22 UTC
    3
30. Compile fpc with llvm

    With success I have built and used an fpc-3.3.1 based LLVM compiler. The FPC LLVM Wiki <https://wiki.freepascal.org/LLVM> says that "the compiler itself on x86-64 is…

    AJAdriaan van Os, Jonas Maebe7-20-2026 08:07 UTC
    2