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------------------------------------------------------------------------
On 2025-09-04T08:26:55+00:00 Heinrich Schuchardt wrote:

In an Ubuntu 25.10 virtual machine providing the RISC-V RVA23S64 ISA
profile building origin/main as of commit
1dd72c65129700b74c1c2a275bfe16d2b2b9eeb1 fails with:

/<<PKGBUILDDIR>>/Source/WTF/wtf/simde/arm/neon.h:9198:5: error: unknown type name 'fixed_vint8m1_t'
 9198 | fixed_vint8m1_t sv64;
      | ^

The same issue was reported in
https://bugs.launchpad.net/ubuntu/+source/webkit2gtk/+bug/2121516

We are using gcc 15.2

Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/riscv64-linux-gnu/15/lto-wrapper
Target: riscv64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 15.2.0-1ubuntu1' --with-bugurl=file:///usr/share/doc/gcc-15/README.Bugs --enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,m2,rust,cobol,algol68 --prefix=/usr --with-gcc-major-version-only --program-suffix=-15 --program-prefix=riscv64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/libexec --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-libstdcxx-backtrace --enable-gnu-unique-object --disable-libquadmath --disable-libquadmath-support --enable-plugin --enable-default-pie --with-system-zlib --enable-libphobos-checking=release --with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch --disable-werror --disable-multilib --with-abi=lp64d --with-arch=rv64i_m_a_f_d_c_b_v_zic64b_zicbom_zicbop_zicboz_ziccamoa_ziccif_zicclsm_ziccrse_zicntr_zicond_zicsr_zifencei_zihintntl_zihintpause_zihpm_zimop_zmmul_za64rs_zaamo_zalrsc_zawrs_zfa_zfhmin_zca_zcb_zcd_zcmop_zba_zbb_zbs_zkt_zvbb_zve32f_zve32x_zve64d_zve64f_zve64x_zvfhmin_zvkb_zvkt_zvl128b_zvl32b_zvl64b_supm --enable-checking=release --build=riscv64-linux-gnu --host=riscv64-linux-gnu --target=riscv64-linux-gnu --with-build-config=bootstrap-lto-lean --enable-link-serialization=4
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 15.2.0 (Ubuntu 15.2.0-1ubuntu1)

Upstream simde-everywhere (https://github.com/simd-everywhere/simde.git)
builds without issues.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/webkit2gtk/+bug/2121516/comments/4


** Changed in: webkit
       Status: Unknown => Confirmed

** Changed in: webkit
   Importance: Unknown => High

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https://bugs.launchpad.net/bugs/2121516

Title:
  webkit2gtk: FTBFS with RVA23

Status in Webkit:
  Confirmed
Status in webkit2gtk package in Ubuntu:
  Confirmed

Bug description:
  As seen in RVA23 test rebuild:
  https://people.canonical.com/~ginggs/ftbfs-report/test-rebuild-20250731-questing-rva23-questing.html

  In file included from /<<PKGBUILDDIR>>/Source/WTF/wtf/CodePtr.cpp:27:
  In file included from /<<PKGBUILDDIR>>/Source/WTF/wtf/CodePtr.h:28:
  In file included from /<<PKGBUILDDIR>>/Source/WTF/wtf/FunctionPtr.h:32:
  In file included from /<<PKGBUILDDIR>>/Source/WTF/wtf/Hasher.h:25:
  In file included from /<<PKGBUILDDIR>>/Source/WTF/wtf/CheckedPtr.h:28:
  In file included from /<<PKGBUILDDIR>>/Source/WTF/wtf/CheckedRef.h:33:
  In file included from /<<PKGBUILDDIR>>/Source/WTF/wtf/SingleThreadIntegralWrapper.h:28:
  In file included from /<<PKGBUILDDIR>>/Source/WTF/wtf/Threading.h:54:
  In file included from /<<PKGBUILDDIR>>/Source/WTF/wtf/text/AtomStringTable.h:28:
  In file included from /<<PKGBUILDDIR>>/Source/WTF/wtf/text/StringHash.h:26:
  In file included from /<<PKGBUILDDIR>>/Source/WTF/wtf/text/AtomString.h:24:
  In file included from /<<PKGBUILDDIR>>/Source/WTF/wtf/text/AtomStringImpl.h:24:
  In file included from /<<PKGBUILDDIR>>/Source/WTF/wtf/text/UniquedStringImpl.h:28:
  In file included from /<<PKGBUILDDIR>>/Source/WTF/wtf/text/StringImpl.h:44:
  In file included from /<<PKGBUILDDIR>>/Source/WTF/wtf/text/StringCommon.h:35:
  In file included from /<<PKGBUILDDIR>>/Source/WTF/wtf/SIMDHelpers.h:58:
  In file included from /<<PKGBUILDDIR>>/Source/WTF/wtf/simde/simde.h:37:
  /<<PKGBUILDDIR>>/Source/WTF/wtf/simde/arm/neon.h:9198:5: error: unknown type name 'fixed_vint8m1_t'
   9198 |     fixed_vint8m1_t sv64;
        |     ^
  /<<PKGBUILDDIR>>/Source/WTF/wtf/simde/arm/neon.h:9211:5: error: unknown type name 'fixed_vint16m1_t'
   9211 |     fixed_vint16m1_t sv64;
        |     ^
  /<<PKGBUILDDIR>>/Source/WTF/wtf/simde/arm/neon.h:9224:5: error: unknown type name 'fixed_vint32m1_t'
   9224 |     fixed_vint32m1_t sv64;
        |     ^
  /<<PKGBUILDDIR>>/Source/WTF/wtf/simde/arm/neon.h:9237:5: error: unknown type name 'fixed_vint64m1_t'
   9237 |     fixed_vint64m1_t sv64;
        |     ^
  /<<PKGBUILDDIR>>/Source/WTF/wtf/simde/arm/neon.h:9250:5: error: unknown type name 'fixed_vuint8m1_t'
   9250 |     fixed_vuint8m1_t sv64;
        |     ^
  /<<PKGBUILDDIR>>/Source/WTF/wtf/simde/arm/neon.h:9263:5: error: unknown type name 'fixed_vuint16m1_t'
   9263 |     fixed_vuint16m1_t sv64;
        |     ^
  /<<PKGBUILDDIR>>/Source/WTF/wtf/simde/arm/neon.h:9276:5: error: unknown type name 'fixed_vuint32m1_t'
   9276 |     fixed_vuint32m1_t sv64;
        |     ^
  /<<PKGBUILDDIR>>/Source/WTF/wtf/simde/arm/neon.h:9289:5: error: unknown type name 'fixed_vuint64m1_t'
   9289 |     fixed_vuint64m1_t sv64;
        |     ^
  /<<PKGBUILDDIR>>/Source/WTF/wtf/simde/arm/neon.h:9305:40: warning: 'SIMDE_ARCH_RISCV_ZVFH' is not defined, evaluates to 0 [-Wundef]
   9305 |   #if defined(SIMDE_RISCV_V_NATIVE) && SIMDE_ARCH_RISCV_ZVFH
        |                                        ^
  /<<PKGBUILDDIR>>/Source/WTF/wtf/simde/arm/neon.h:9319:5: error: unknown type name 'fixed_vfloat32m1_t'
   9319 |     fixed_vfloat32m1_t sv64;
        |     ^
  /<<PKGBUILDDIR>>/Source/WTF/wtf/simde/arm/neon.h:9332:5: error: unknown type name 'fixed_vfloat64m1_t'
   9332 |     fixed_vfloat64m1_t sv64;
        |     ^
  /<<PKGBUILDDIR>>/Source/WTF/wtf/simde/arm/neon.h:9340:5: error: unknown type name 'fixed_vuint8m1_t'
   9340 |     fixed_vuint8m1_t sv64;
        |     ^
  /<<PKGBUILDDIR>>/Source/WTF/wtf/simde/arm/neon.h:9347:5: error: unknown type name 'fixed_vuint16m1_t'
   9347 |     fixed_vuint16m1_t sv64;
        |     ^
  /<<PKGBUILDDIR>>/Source/WTF/wtf/simde/arm/neon.h:9354:5: error: unknown type name 'fixed_vuint64m1_t'
   9354 |     fixed_vuint64m1_t sv64;
        |     ^
  /<<PKGBUILDDIR>>/Source/WTF/wtf/simde/arm/neon.h:9374:5: error: unknown type name 'fixed_vint8m1_t'
   9374 |     fixed_vint8m1_t sv128;
        |     ^
  /<<PKGBUILDDIR>>/Source/WTF/wtf/simde/arm/neon.h:9395:5: error: unknown type name 'fixed_vint16m1_t'
   9395 |     fixed_vint16m1_t sv128;
        |     ^
  /<<PKGBUILDDIR>>/Source/WTF/wtf/simde/arm/neon.h:9420:5: error: unknown type name 'fixed_vint32m1_t'
   9420 |     fixed_vint32m1_t sv128;
        |     ^
  /<<PKGBUILDDIR>>/Source/WTF/wtf/simde/arm/neon.h:9441:5: error: unknown type name 'fixed_vint64m1_t'
   9441 |     fixed_vint64m1_t sv128;
        |     ^
  /<<PKGBUILDDIR>>/Source/WTF/wtf/simde/arm/neon.h:9462:5: error: unknown type name 'fixed_vuint8m1_t'
   9462 |     fixed_vuint8m1_t sv128;
        |     ^
  /<<PKGBUILDDIR>>/Source/WTF/wtf/simde/arm/neon.h:9483:5: error: unknown type name 'fixed_vuint16m1_t'
   9483 |     fixed_vuint16m1_t sv128;
        |     ^
  fatal error: too many errors emitted, stopping now [-ferror-limit=]

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