Your message dated Fri, 02 Jan 2026 12:37:11 +0000
with message-id <[email protected]>
and subject line Bug#1104187: fixed in mayo 0.9.0+git20251225+ds-2
has caused the Debian Bug report #1104187,
regarding mayo:FTBFS:build failed(error: #error Unknown platform)
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
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--
1104187: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1104187
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Source: mayo
Version: 0.9.0+ds-2
Severity: serious
Tags: FTBFS, patch
User: [email protected]
Usertags: riscv64
Dear mayo maintainer,
The package mayo build failed on riscv64.The crucial buildd log below:
```
/build/reproducible-path/mayo-0.9.0+ds/src/3rdparty/fast_float/float_common.h:21:2:
error: #error Unknown platform (not 32-bit, not 64-bit?)
21 | #error Unknown platform (not 32-bit, not 64-bit?)
| ^~~~~
/build/reproducible-path/mayo-0.9.0+ds/src/3rdparty/fast_float/float_common.h:162:4:
error: #error Not implemented
162 | #error Not implemented
| ^~~~~
[ 26%] Building CXX object CMakeFiles/MayoCore.dir/src/base/xcaf.cpp.o
/usr/bin/c++ -DOCCT_HANDLE_NOCAST -DOCC_CONVERT_SIGNALS
-DQT_DISABLE_DEPRECATED_BEFORE=0x050F00
-DQT_IMPLICIT_QFILEINFO_CONSTRUCTION
-I/build/reproducible-path/mayo-0.9.0+ds/obj-riscv64-linux-gnu/MayoCore_autogen/include
-I/build/reproducible-path/mayo-0.9.0+ds/src/3rdparty
-I/build/reproducible-path/mayo-0.9.0+ds/obj-riscv64-linux-gnu
-isystem /usr/include/opencascade -g -O2
-ffile-prefix-map=/build/reproducible-path/mayo-0.9.0+ds=.
-fstack-protector-strong -Wformat -Werror=format-security -Wdate-time
-D_FORTIFY_SOURCE=2 -std=gnu++17 -MD -MT
CMakeFiles/MayoCore.dir/src/base/xcaf.cpp.o -MF
CMakeFiles/MayoCore.dir/src/base/xcaf.cpp.o.d -o
CMakeFiles/MayoCore.dir/src/base/xcaf.cpp.o -c
/build/reproducible-path/mayo-0.9.0+ds/src/base/xcaf.cpp
[ 27%] Building CXX object CMakeFiles/MayoCore.dir/src/graphics/ais_text.cpp.o
/usr/bin/c++ -DOCCT_HANDLE_NOCAST -DOCC_CONVERT_SIGNALS
-DQT_DISABLE_DEPRECATED_BEFORE=0x050F00
-DQT_IMPLICIT_QFILEINFO_CONSTRUCTION
-I/build/reproducible-path/mayo-0.9.0+ds/obj-riscv64-linux-gnu/MayoCore_autogen/include
-I/build/reproducible-path/mayo-0.9.0+ds/src/3rdparty
-I/build/reproducible-path/mayo-0.9.0+ds/obj-riscv64-linux-gnu
-isystem /usr/include/opencascade -g -O2
-ffile-prefix-map=/build/reproducible-path/mayo-0.9.0+ds=.
-fstack-protector-strong -Wformat -Werror=format-security -Wdate-time
-D_FORTIFY_SOURCE=2 -std=gnu++17 -MD -MT
CMakeFiles/MayoCore.dir/src/graphics/ais_text.cpp.o -MF
CMakeFiles/MayoCore.dir/src/graphics/ais_text.cpp.o.d -o
CMakeFiles/MayoCore.dir/src/graphics/ais_text.cpp.o -c
/build/reproducible-path/mayo-0.9.0+ds/src/graphics/ais_text.cpp
make[3]: *** [CMakeFiles/MayoCore.dir/build.make:663:
CMakeFiles/MayoCore.dir/src/base/unit_system.cpp.o] Error 1
make[3]: *** Waiting for unfinished jobs....
[ 27%] Building CXX object
CMakeFiles/MayoCore.dir/src/graphics/graphics_create_driver.cpp.o
/usr/bin/c++ -DOCCT_HANDLE_NOCAST -DOCC_CONVERT_SIGNALS
-DQT_DISABLE_DEPRECATED_BEFORE=0x050F00
-DQT_IMPLICIT_QFILEINFO_CONSTRUCTION
-I/build/reproducible-path/mayo-0.9.0+ds/obj-riscv64-linux-gnu/MayoCore_autogen/include
-I/build/reproducible-path/mayo-0.9.0+ds/src/3rdparty
-I/build/reproducible-path/mayo-0.9.0+ds/obj-riscv64-linux-gnu
-isystem /usr/include/opencascade -g -O2
-ffile-prefix-map=/build/reproducible-path/mayo-0.9.0+ds=.
-fstack-protector-strong -Wformat -Werror=format-security -Wdate-time
-D_FORTIFY_SOURCE=2 -std=gnu++17 -MD -MT
CMakeFiles/MayoCore.dir/src/graphics/graphics_create_driver.cpp.o -MF
CMakeFiles/MayoCore.dir/src/graphics/graphics_create_driver.cpp.o.d -o
CMakeFiles/MayoCore.dir/src/graphics/graphics_create_driver.cpp.o -c
/build/reproducible-path/mayo-0.9.0+ds/src/graphics/graphics_create_driver.cpp
make[3]: Leaving directory
'/build/reproducible-path/mayo-0.9.0+ds/obj-riscv64-linux-gnu'
make[2]: *** [CMakeFiles/Makefile2:109: CMakeFiles/MayoCore.dir/all] Error 2
make[2]: Leaving directory
'/build/reproducible-path/mayo-0.9.0+ds/obj-riscv64-linux-gnu'
make[1]: *** [Makefile:94: all] Error 2
make[1]: Leaving directory
'/build/reproducible-path/mayo-0.9.0+ds/obj-riscv64-linux-gnu'
dh_auto_build: error: cd obj-riscv64-linux-gnu && make -j4
"INSTALL=install --strip-program=true" VERBOSE=1 returned exit code 2
```
The full buildd log is here:
https://buildd.debian.org/status/fetch.php?pkg=mayo&arch=riscv64&ver=0.9.0%2Bds-2&stamp=1744889134&raw=0
My solution to this issue:
The bundled fast_float library (version included in mayo 0.9.0+ds) does not
have preprocessor checks to identify the riscv64 architecture.It fails to
define FASTFLOAT_64BIT for this platform, leading to the above errors as
the code falls through to unimplemented/error sections.The issue can be
fixed by patching src/3rdparty/fast_float/float_common.h to recognize
riscv64 as a 64-bit architecture using the standard __riscv and
__riscv_xlen macros. This allows the existing code path that uses
__uint128_t (available on riscv64 with GCC/Clang) to be used for 128-bit
multiplication within the library. The debdiff patch is in the attachment.I
have tested that locally, and it works well.Please let me know whether this
solution can be accepted.
Thank you for maintaining mayo.
Gui-Yue
Best Regards
support_riscv_for_mayo.patch
Description: Binary data
--- End Message ---
--- Begin Message ---
Source: mayo
Source-Version: 0.9.0+git20251225+ds-2
Done: Alex Myczko <[email protected]>
We believe that the bug you reported is fixed in the latest version of
mayo, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Alex Myczko <[email protected]> (supplier of updated mayo package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Fri, 02 Jan 2026 12:57:04 +0100
Source: mayo
Architecture: source
Version: 0.9.0+git20251225+ds-2
Distribution: unstable
Urgency: medium
Maintainer: Alex Myczko <[email protected]>
Changed-By: Alex Myczko <[email protected]>
Closes: 1104187
Changes:
mayo (0.9.0+git20251225+ds-2) unstable; urgency=medium
.
* Upload to sid. (Closes: #1104187)
* d/control: bump year.
* d/mayo.desktop: added.
* d/watch: updated.
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