# Ann: SWI-Prolog 10.1.5 **URL:** \ **Category:** Releases\ **Created:** [March 11, 2026, 4:39pm UTC](https://swi-prolog.discourse.group/t/ann-swi-prolog-10-1-5/9541 "2026-03-11T16:39:18Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![jan](https://yyz2.discourse-cdn.com/free1/user_avatar/swi-prolog.discourse.group/jan/32/4_2.png) [@jan](https://swi-prolog.discourse.group/u/jan)\ **Post date:** [March 11, 2026, 4:39pm UTC](https://swi-prolog.discourse.group/t/ann-swi-prolog-10-1-5/9541/1 "2026-03-11T16:39:18Z")
Dear SWI-Prolog user, SWI-Prolog 10.1.5 is ready for download. This version comes with various enhancements to the development tools. It also fixes some minor bugs and portability issues. Highlights: - Fixed XPCE scroll sensitivity when using trackpads (notably on Macbooks). - Added `library(tableutil)`, providing the tabling inspection and statistic utilities that used to be in my private library. - Add a `class` property to threads. This is used to control debugging a group of threads, including new threads that are created in this group. For example, `?- tdebug(http).` now reliably enabled debug mode on HTTP worker threads, including lazily created threads. Classes are shown by threads/0 and the GUI tool for monitoring threads. - Extend completion on the commandline to variable names and `$Var` references to saved bindings. - Fixed bug in PceEmacs `dabbrev_expand`, causing the editor to loop and be unresponsive. - Added _Spy_ menu option to PceEmacs context popup on heads and goals. - @EricGT enabled PGO compilation for MSVC (producing way slower code than GCC in debug mode …). Also fixed an issue in LibBF based random number generation. - @Peter.Ludemann fixed some issues in the Google Protobufs. # SWI-Prolog Changelog since version 10.1.4 - ENHANCED: Messages to use DCG Name//Arity when applicable. - FIXED: QLF compilation: preserve `non_terminal` predicate\_property/2. - ADDED: `library(tableutil)`: toplevel utilities This library provides toplevel utilities to dump tables, their relations and statistics. - PORT: #1481 Removed RETSIGTYPE configuration The CMake config seems broken for gentoo using C23. As there are no systems that use `int` for signal handler return value, there is no need for this configuration. - FIXED: Make compile again for single threaded and WASM targets. - CLEANUP: Prolog flag handling. Cleanup the implementation, mostly by splitting too large functions. Clarified documentation with respect to thread interaction. Added an option `local(true)` to create\_prolog\_flag/3 which create a flag only for the calling thread. Clarified and fixed default behaviour, which is for create\_prolog\_flag/3 to set the flag _globally_, i.e., make it available with this value for any thread. This now updates _both_ the local and global flag table (before it updated only the global table). - DOC: Use PlDoc for the documentation of library(threadutil) - CLEANUP: Move thread\_alias/2 to library(thread\_util). The core functionality is now provided by set\_thread/2. - ADDED: thread\_property/2: debug\_mode(-Boolean) property - ADDED: Assign threads the notion of a _class_. This is notably intended to control debugging. Possibly this can be extended to other features such as memory management policies, termination, etc. Future versions may also allow for multiple classes. Related changes - ADDED: PL\_current\_prolog\_flag(): type `PL_BOOL` - MODIFIED: visible/1: default to include `cut_call` This shows calls to ! in the tracer. - FIXED: thread\_property/2: `system_thread_id` on Linux Failed to initialize this on systems with the getid() function (primarily Linux, but possibly other platforms using glibc). - FIXED: Make updateAlerted() thread-safe Could lead to race conditions when this function is called from multiple threads (usually the target and some external thread). - ADDED: prolog:complete\_input/4: enhanced CLI TAB completion - Complete variables in the query using Emacs _dabbrev_ completion - Complete in $Var for saved toplevel variables. - BUILD: Fixed PGO compilation for non-MSVC - TEST: empty file position tests. - CMAKE: Add MSVC support for Profile-Guided Optimization - ENHANCED: Message when running the toplevel using initialization/1. - FIXED: #1478 LibBF mpz\_import() emulation for leading zero-bytes. Lead to undefined behaviour in random number generation. - UBAN: #1478 Avoid undefined arithmetic on NULL pointer (benign). - FIXED: predicate\_label/2: avoid importing targets into `system`. - PPA: Fixup generating PPAs for both SDL and non-SDL versions. ## Package debian - PPA: Dropped libedit. Using bundled version. ## Package http - ADDED: Set class property for created threads. ## Package protobufs - CLEANUP: remove absolute path from generated \_pb.pl, fix typos - TEST: fixed typo that prevent interop test from running ## Package xpce - ENHANCED: Capture `main` thread messages to current Epilog using hyperlinks. - ADDED: PceEmacs Prolog mode: set spy point from goal and head popup. - PORT: Removed RETSIGTYPE config Outdates as any reasonable still alive system uses `void`. - FIXED: Epilog: Possible access to freed object when closing. - ENHANCED: Thread monitor Show more of the status of threads and improve popup menu actions. Improve disabling popup entries and add an entry to toggle debug mode for classes of threads. - ENCHANCED: GUI tracer control. - ADDED: Epilog: use thread classes. - FIXED: PceEmacs: possible infinite loop in `dabbrev_expand`. `editor->dabbrev_expand` can loop if a secondary or ternary search for candidates only results in candidates that are already rejected by the user from earlier candidate searches. - ENHANCED: Improve scroll wheel handling. Notably get more natural scroll speed on MacOS trackpads - FIX: Pass image (not surf) to my\_cairo\_check\_surface in ws\_load\_image\_file - BUILD: Build in headless mode. ---
**Author:** ![kuniaki.mukai](https://avatars.discourse-cdn.com/v4/letter/k/c67d28/32.png) [@kuniaki.mukai](https://swi-prolog.discourse.group/u/kuniaki.mukai)\ **Post date:** [March 12, 2026, 1:46am UTC](https://swi-prolog.discourse.group/t/ann-swi-prolog-10-1-5/9541/2 "2026-03-12T01:46:44Z")
Got this error for 10.1.5 building from source on macOS Tahoue 26.3 Silicon macbook pro, and imac intell 2020). Should I wait for fix ? > **Erro log** > > [2088/2561] Building C object packages/x…plugin\_pl2xpce.dir/src/ker/conversion.c. > FAILED: [code=1] packages/xpce/CMakeFiles/plugin\_pl2xpce.dir/src/ker/conversion.c.o > /usr/local/bin/ccache /usr/bin/cc -Dplugin\_pl2xpce\_EXPORTS -I/Users/cantor/src/swipl-devel/build/packages/xpce -I/Users/cantor/src/swipl-devel/packages/xpce/src -I/Users/cantor/src/swipl-devel/src/os -I/Users/cantor/src/swipl-devel/src -isystem /usr/local/Cellar/cairo/1.18.4/include/cairo -isystem /usr/local/Cellar/fontconfig/2.17.1/include -isystem /usr/local/opt/freetype/include/freetype2 -isystem /usr/local/opt/libpng/include/libpng16 -isystem /usr/local/Cellar/libxext/1.3.7/include -isystem /usr/local/Cellar/xorgproto/2025.1/include -isystem /usr/local/Cellar/libxrender/0.9.12/include -isystem /usr/local/Cellar/libx11/1.8.13/include -isystem /usr/local/Cellar/libxcb/1.17.0/include -isystem /usr/local/Cellar/libxau/1.0.12/include -isystem /usr/local/Cellar/libxdmcp/1.1.5/include -isystem /usr/local/Cellar/pixman/0.46.4/include/pixman-1 -isystem /usr/local/Cellar/pango/1.57.0\_2/include/pango-1.0 -isystem /usr/local/Cellar/harfbuzz/13.1.0/include/harfbuzz -isystem /usr/local/Cellar/graphite2/1.3.14/include -isystem /usr/local/Cellar/glib/2.86.4/include -isystem /usr/local/Cellar/glib/2.86.4/include/glib-2.0 -isystem /usr/local/Cellar/glib/2.86.4/lib/glib-2.0/include -isystem /usr/local/opt/gettext/include -isystem /usr/local/Cellar/pcre2/10.47\_1/include -isystem /usr/local/Cellar/fribidi/1.0.16/include/fribidi -isystem /usr/local/Cellar/libthai/0.1.30/include -isystem /usr/local/Cellar/libdatrie/0.2.14/include -I/usr/local/include -I/usr/local/opt/libffi/include -I/usr/local/opt/libedit/include -I/usr/local/opt/libarchive/include -O3 -DNDEBUG -std=gnu11 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX26.2.sdk -fPIC -fvisibility=hidden -Wall -DHAVE\_CONFIG\_H -DSWI -D\_\_SWI\_PROLOG\_\_ -MD -MT packages/xpce/CMakeFiles/plugin\_pl2xpce.dir/src/ker/conversion.c.o -MF packages/xpce/CMakeFiles/plugin\_pl2xpce.dir/src/ker/conversion.c.o.d -o packages/xpce/CMakeFiles/plugin\_pl2xpce.dir/src/ker/conversion.c.o -c /Users/cantor/src/swipl-devel/packages/xpce/src/ker/conversion.c > /Users/cantor/src/swipl-devel/packages/xpce/src/ker/conversion.c:399:8: error: unknown type name ‘RETSIGTYPE’ > 399 | static RETSIGTYPE > | ^ > /Users/cantor/src/swipl-devel/packages/xpce/src/ker/conversion.c:404:22: error: type specifier missing, defaults to ‘int’; ISO C99 and later do not support implicit int [-Wimplicit-int] > 404 | typedef RETSIGTYPE (\*handler\_t)(); > | ^ > | int > /Users/cantor/src/swipl-devel/packages/xpce/src/ker/conversion.c:404:9: error: type specifier missing, defaults to ‘int’; ISO C99 and later do not support implicit int [-Wimplicit-int] > 404 | typedef RETSIGTYPE (\*handler\_t)(); > | ~~~~~~~ ^ > | int > /Users/cantor/src/swipl-devel/packages/xpce/src/ker/conversion.c:404:20: error: function cannot return function type ‘int ()’ > 404 | typedef RETSIGTYPE (\*handler\_t)(); > | ^ > /Users/cantor/src/swipl-devel/packages/xpce/src/ker/conversion.c:411:25: error: unknown type name ‘handler\_t’; did you mean ‘Handler’? > 411 | set\_sighandler(int sig, handler\_t func, sigsave\_t _old) > | ^ ~~~~~~~~ > | Handler > /Users/cantor/src/swipl-devel/packages/xpce/src/h/types.h:99:27: note: ‘Handler’ declared here > 99 | typedef struct handler \* Handler; > | ^ > /Users/cantor/src/swipl-devel/packages/xpce/src/ker/conversion.c:415:18: warning: incompatible pointer types assigning to 'void (_)(int)’ from ‘Handler’ (aka ‘struct handler \*’) [-Wincompatible-pointer-types] > 415 | new.sa\_handler = func; > | ^ ~~~~ > 1 warning and 5 errors generated. > [2103/2561] Building C object packages/x…es/plugin\_pl2xpce.dir/src/ker/goodies.c. > ninja: build stopped: subcommand failed. > % ---
**Author:** ![jan](https://yyz2.discourse-cdn.com/free1/user_avatar/swi-prolog.discourse.group/jan/32/4_2.png) [@jan](https://swi-prolog.discourse.group/u/jan)\ **Post date:** [March 12, 2026, 7:42am UTC](https://swi-prolog.discourse.group/t/ann-swi-prolog-10-1-5/9541/3 "2026-03-12T07:42:28Z")
> [@kuniaki.mukai](#): > > /Users/cantor/src/swipl-devel/packages/xpce/src/ker/conversion.c:399:8: error: unknown type name ‘RETSIGTYPE’ Seems you did not update the submodules after pulling. Run ``` git submodule update --recursive ``` You should always do that after a `git pull` ---
**Author:** ![kuniaki.mukai](https://avatars.discourse-cdn.com/v4/letter/k/c67d28/32.png) [@kuniaki.mukai](https://swi-prolog.discourse.group/u/kuniaki.mukai)\ **Post date:** [March 12, 2026, 8:44am UTC](https://swi-prolog.discourse.group/t/ann-swi-prolog-10-1-5/9541/4 "2026-03-12T08:44:14Z")
Thanks for quick quick response. I have inserted the line `git submodule update --recursive` into my full build script for SWIPL. It works both for intel mac and silicon macs. ---
**Author:** ![rajeshkommu](https://avatars.discourse-cdn.com/v4/letter/r/a9adbd/32.png) [@rajeshkommu](https://swi-prolog.discourse.group/u/rajeshkommu)\ **Post date:** [March 13, 2026, 3:17pm UTC](https://swi-prolog.discourse.group/t/ann-swi-prolog-10-1-5/9541/5 "2026-03-13T15:17:51Z")
I am getting the following error when building 10.1.5 on arch linux ```prolog CMake Error in CMakeLists.txt: IMPORTED_LOCATION or IMPORTED_IMPLIB not set for imported target “SDL3::SDL3-shared” configuration “PGO”. CMake Error in packages/xpce/CMakeLists.txt: IMPORTED_LOCATION or IMPORTED_IMPLIB not set for imported target “SDL3_image::SDL3_image-shared” configuration “PGO”. ``` Previous version had no issues building. ---
**Author:** ![jan](https://yyz2.discourse-cdn.com/free1/user_avatar/swi-prolog.discourse.group/jan/32/4_2.png) [@jan](https://swi-prolog.discourse.group/u/jan)\ **Post date:** [March 13, 2026, 3:27pm UTC](https://swi-prolog.discourse.group/t/ann-swi-prolog-10-1-5/9541/6 "2026-03-13T15:27:32Z")
> [@rajeshkommu](#): > > Previous version had no issues building. Which is the previous version? Did you upgrade arch in the meanwhile? Did you install SDL3 and SDL3\_Image packages (development versions)? ---
**Author:** ![rajeshkommu](https://avatars.discourse-cdn.com/v4/letter/r/a9adbd/32.png) [@rajeshkommu](https://swi-prolog.discourse.group/u/rajeshkommu)\ **Post date:** [March 13, 2026, 3:34pm UTC](https://swi-prolog.discourse.group/t/ann-swi-prolog-10-1-5/9541/7 "2026-03-13T15:34:21Z")
Previous version was 10.1.4, and I do have the SDL3 and SDL3\_Image packages installed. However, I did update arch. I am going to reboot and try building again. Will update in a few minutes. ---
**Author:** ![jan](https://yyz2.discourse-cdn.com/free1/user_avatar/swi-prolog.discourse.group/jan/32/4_2.png) [@jan](https://swi-prolog.discourse.group/u/jan)\ **Post date:** [March 13, 2026, 3:39pm UTC](https://swi-prolog.discourse.group/t/ann-swi-prolog-10-1-5/9541/8 "2026-03-13T15:39:49Z")
> [@rajeshkommu](#): > > I did update arch Ok. Nothing related changed to SWI-Prolog’s build process. After an OS upgrade it is typically wise to do build and configure from scratch because previous detected dependencies now have different paths due to version upgrades. ---
**Author:** ![rajeshkommu](https://avatars.discourse-cdn.com/v4/letter/r/a9adbd/32.png) [@rajeshkommu](https://swi-prolog.discourse.group/u/rajeshkommu)\ **Post date:** [March 13, 2026, 3:48pm UTC](https://swi-prolog.discourse.group/t/ann-swi-prolog-10-1-5/9541/9 "2026-03-13T15:48:27Z")
Still getting the same issue. Usually I let the aur package handle the updates. Now I tried building from source manually, and I am seeing the exact same error. ---
**Author:** ![jan](https://yyz2.discourse-cdn.com/free1/user_avatar/swi-prolog.discourse.group/jan/32/4_2.png) [@jan](https://swi-prolog.discourse.group/u/jan)\ **Post date:** [March 13, 2026, 3:52pm UTC](https://swi-prolog.discourse.group/t/ann-swi-prolog-10-1-5/9541/10 "2026-03-13T15:52:24Z")
Weird. I’m a bit surprised about the `configuration “PGO”` in the error. I do not recall that. Maybe something new in CMake? Which version? Could you try building without PGO enabled? ---
**Author:** ![rajeshkommu](https://avatars.discourse-cdn.com/v4/letter/r/a9adbd/32.png) [@rajeshkommu](https://swi-prolog.discourse.group/u/rajeshkommu)\ **Post date:** [March 13, 2026, 4:31pm UTC](https://swi-prolog.discourse.group/t/ann-swi-prolog-10-1-5/9541/11 "2026-03-13T16:31:25Z")
Without PGO enabled, I am able to build without any issues! ---
**Author:** ![jan](https://yyz2.discourse-cdn.com/free1/user_avatar/swi-prolog.discourse.group/jan/32/4_2.png) [@jan](https://swi-prolog.discourse.group/u/jan)\ **Post date:** [March 14, 2026, 8:49am UTC](https://swi-prolog.discourse.group/t/ann-swi-prolog-10-1-5/9541/12 "2026-03-14T08:49:09Z")
At least that is good. I suspect a CMake change. Which version is installed on your system (`cmake --version`)? My dev machine (Fedora 43) has 3.31.10. ---
**Author:** ![rajeshkommu](https://avatars.discourse-cdn.com/v4/letter/r/a9adbd/32.png) [@rajeshkommu](https://swi-prolog.discourse.group/u/rajeshkommu)\ **Post date:** [March 14, 2026, 1:34pm UTC](https://swi-prolog.discourse.group/t/ann-swi-prolog-10-1-5/9541/13 "2026-03-14T13:34:45Z")
I am using the 4.2.3 version of CMake. That might be the issue! ---
**Author:** ![jan](https://yyz2.discourse-cdn.com/free1/user_avatar/swi-prolog.discourse.group/jan/32/4_2.png) [@jan](https://swi-prolog.discourse.group/u/jan)\ **Post date:** [March 14, 2026, 4:43pm UTC](https://swi-prolog.discourse.group/t/ann-swi-prolog-10-1-5/9541/14 "2026-03-14T16:43:30Z")
Yes. Commit b9f48137e7b4f8fa87aef141ba34b022de44202f works around this, although I’m afraid I don’t really understand why. I don’t understand the documentation and it seems I’m not the only one … At least for me it now builds on the latest Arch Linux (in a Docker container from `archlinux:base-devel`) ---
**Author:** ![alanbur](https://yyz2.discourse-cdn.com/free1/user_avatar/swi-prolog.discourse.group/alanbur/32/7166_2.png) [@alanbur](https://swi-prolog.discourse.group/u/alanbur)\ **Post date:** [March 15, 2026, 11:56am UTC](https://swi-prolog.discourse.group/t/ann-swi-prolog-10-1-5/9541/15 "2026-03-15T11:56:13Z")
Same here, on Debian 6.12.74+deb13+1-amd64 CMake 3.31.6. This is with a fresh git clone so there’s nothing left over from previous versions. ```prolog CMake Error in CMakeLists.txt: IMPORTED_LOCATION or IMPORTED_IMPLIB not set for imported target "SDL3::SDL3-shared" configuration "PGO". CMake Error in packages/xpce/CMakeLists.txt: IMPORTED_LOCATION or IMPORTED_IMPLIB not set for imported target "SDL3_image::SDL3_image-shared" configuration "PGO". CMake Error in CMakeLists.txt: IMPORTED_LOCATION or IMPORTED_IMPLIB not set for imported target "SDL3::SDL3-shared" configuration "PGO". CMake Error in packages/xpce/CMakeLists.txt: IMPORTED_LOCATION or IMPORTED_IMPLIB not set for imported target "SDL3_image::SDL3_image-shared" configuration "PGO". -- Generating done (0.3s) CMake Generate step failed. Build files cannot be regenerated correctly. ``` ---
**Author:** ![jan](https://yyz2.discourse-cdn.com/free1/user_avatar/swi-prolog.discourse.group/jan/32/4_2.png) [@jan](https://swi-prolog.discourse.group/u/jan)\ **Post date:** [March 15, 2026, 12:02pm UTC](https://swi-prolog.discourse.group/t/ann-swi-prolog-10-1-5/9541/16 "2026-03-15T12:02:54Z")
> [@alanbur](#): > > Same here, on Debian 6.12.74+deb13+1-amd64 CMake 3.31.6 Is this completely up-to-date? I.e., are you at commit b9f48137e7b4f8fa87aef141ba34b022de44202f? That patch fixed this issue for Arch Linux. > [@alanbur](#): > > This is with a fresh git clone so there’s nothing left over from previous versions. There is no need for fresh clones. The build does not write outside the directory in which you are building (except if you install as well of course). So, just delete the build directory and all is clean again. ---
**Author:** ![alanbur](https://yyz2.discourse-cdn.com/free1/user_avatar/swi-prolog.discourse.group/alanbur/32/7166_2.png) [@alanbur](https://swi-prolog.discourse.group/u/alanbur)\ **Post date:** [March 15, 2026, 12:09pm UTC](https://swi-prolog.discourse.group/t/ann-swi-prolog-10-1-5/9541/17 "2026-03-15T12:09:09Z")
I’ve tried this but it fails elsewhere, in something SDL-related. Debian 6.12.74+deb13+1 ```prolog libsdl-image1.2/stable,now 1.2.12-14 amd64 [installed] libsdl-ttf2.0-0/stable,now 2.0.11-6+b2 amd64 [installed] libsdl1.2debian/stable,now 1.2.68-3 amd64 [installed,automatic] libsdl2-2.0-0/stable,now 2.32.4+dfsg-1 amd64 [installed] libsdl3-0/stable,now 3.2.10+ds-1 amd64 [installed,automatic] libsdl3-dev/stable,now 3.2.10+ds-1 amd64 [installed] libsdl3-image-dev/stable,now 3.2.4+ds-1 amd64 [installed] libsdl3-image0/stable,now 3.2.4+ds-1 amd64 [installed,automatic] ``` ```prolog [2234/2600] Building C object packages/xpce/CMakeFiles/plugin_pl2xpce.dir/src/sdl/sdlevent.c.o FAILED: packages/xpce/CMakeFiles/plugin_pl2xpce.dir/src/sdl/sdlevent.c.o /bin/cc -Dplugin_pl2xpce_EXPORTS -I/data2/tmp/swipl-devel-10.1.5/build/packages/xpce -I/data2/tmp/swipl-devel-10.1.5/packages/xpce/src -I/data2/tmp/swipl-devel-10.1.5/src/os -I/data2/tmp/swipl-devel-10.1.5/src -isystem /usr/include/cairo -isystem /usr/include/libpng16 -isystem /usr/include/freetype2 -isystem /usr/include/pixman-1 -isystem /usr/include/pango-1.0 -isystem /usr/include/glib-2.0 -isystem /usr/lib/x86_64-linux-gnu/glib-2.0/include -isystem /usr/include/sysprof-6 -isystem /usr/include/harfbuzz -isystem /usr/include/libmount -isystem /usr/include/blkid -isystem /usr/include/fribidi -O3 -gdwarf-2 -g3 -std=gnu11 -fPIC -fvisibility=hidden -Wall -DHAVE_CONFIG_H -DSWI -D __SWI_PROLOG__ -pthread -MD -MT packages/xpce/CMakeFiles/plugin_pl2xpce.dir/src/sdl/sdlevent.c.o -MF packages/xpce/CMakeFiles/plugin_pl2xpce.dir/src/sdl/sdlevent.c.o.d -o packages/xpce/CMakeFiles/plugin_pl2xpce.dir/src/sdl/sdlevent.c.o -c /data2/tmp/swipl-devel-10.1.5/packages/xpce/src/sdl/sdlevent.c /data2/tmp/swipl-devel-10.1.5/packages/xpce/src/sdl/sdlevent.c: In function ‘CtoEvent’: /data2/tmp/swipl-devel-10.1.5/packages/xpce/src/sdl/sdlevent.c:374:28: error: ‘SDL_MouseWheelEvent’ has no member named ‘integer_y’ 374 | int dy = event->wheel.integer_y; | ^ In file included from /data2/tmp/swipl-devel-10.1.5/packages/xpce/src/sdl/sdlevent.c:36: /data2/tmp/swipl-devel-10.1.5/packages/xpce/src/sdl/sdlevent.c:378:49: error: ‘SDL_MouseWheelEvent’ has no member named ‘integer_y’ 378 | event->wheel.y, event->wheel.integer_y, time-last_time, | ^ /data2/tmp/swipl-devel-10.1.5/packages/xpce/src/h/kernel.h:1848:37: note: in definition of macro ‘DEBUG’ 1848 | { goal; \ | ^~~~ [2247/2600] Building CXX object packages/cpp/CMakeFiles/plugin_test_cpp.dir/test_cpp.cpp.o ninja: build stopped: subcommand failed. ``` ---
**Author:** ![alanbur](https://yyz2.discourse-cdn.com/free1/user_avatar/swi-prolog.discourse.group/alanbur/32/7166_2.png) [@alanbur](https://swi-prolog.discourse.group/u/alanbur)\ **Post date:** [March 15, 2026, 12:18pm UTC](https://swi-prolog.discourse.group/t/ann-swi-prolog-10-1-5/9541/18 "2026-03-15T12:18:48Z")
> [@jan](#): > > Is this completely up-to-date? I.e., are you at commit b9f48137e7b4f8fa87aef141ba34b022de44202f? That patch fixed this issue for Arch Linux. I’m working my way through the thread 😉 I’ve rebuilt with that commit, but (cmake version 3.31.6): ```prolog CMake Warning: No source or binary directory provided. Both will be assumed to be the same as the current working directory, but note that this warning will become a fatal error in future CMake releases. CMake Error: The source directory "/data2/tmp/swipl-devel-HEAD/build" does not appear to contain CMakeLists.txt. Specify --help for usage, or press the help button on the CMake GUI. ``` I updated Debian yesterday, I’ll try what was a previously successful build of 10.1.3 to make sure that’s not due to the upgrade. > [@jan](#): > > There is no need for fresh clones. Yeah I know, but I don’t keep the tree between builds anyway, so it’s always a fresh clone. ---
**Author:** ![jan](https://yyz2.discourse-cdn.com/free1/user_avatar/swi-prolog.discourse.group/jan/32/4_2.png) [@jan](https://swi-prolog.discourse.group/u/jan)\ **Post date:** [March 15, 2026, 12:31pm UTC](https://swi-prolog.discourse.group/t/ann-swi-prolog-10-1-5/9541/19 "2026-03-15T12:31:49Z")
> [@alanbur](#): > > `libsdl3-dev/stable,now 3.2.10` ☹`event->wheel.integer_y` is introduced in SDL 3.2.12. That patch was needed to make trackpad scrolling behave properly. Pushed a new version where we emulate this. Not perfect, but hopefully good enough. Version 1a00ab1213592f52dba8702dcf8969dc33cc2a3 ---
**Author:** ![alanbur](https://yyz2.discourse-cdn.com/free1/user_avatar/swi-prolog.discourse.group/alanbur/32/7166_2.png) [@alanbur](https://swi-prolog.discourse.group/u/alanbur)\ **Post date:** [March 15, 2026, 12:51pm UTC](https://swi-prolog.discourse.group/t/ann-swi-prolog-10-1-5/9541/20 "2026-03-15T12:51:02Z")
> [@jan](#): > > Pushed a new version where we emulate this. Not perfect, but hopefully good enough. Version 1a00ab1213592f52dba8702dcf8969dc33cc2a3 Bingo - clean build ☺ FYI, I checked previous release builds, the last one that worked for me was 10.1.3. [Next page](https://swi-prolog.discourse.group/t/ann-swi-prolog-10-1-5/9541.md?page=2)