[pkg-lua-devel] Bug#1112338: luajit: FTBFS due to invalid .option arch -c

[Heinrich Schuchardt]

Package: luajit
Version: 2.1.0+openresty20250117-2
Severity: normal
Tags: patch ftbfs
User: ubuntu-devel at lists.ubuntu.com
Usertags: origin-ubuntu questing ubuntu-patch

Dear Maintainer,

In Ubuntu, the attached patch was applied to achieve the following:

LuaJit fails to build on riscv64 Ubuntu 25.10:
https://launchpadlibrarian.net/813730444/buildlog_ubuntu-questing-riscv64.luajit_2.1.0+openresty20250117-2build1_BUILDING.txt.gz

buildvm_riscv.dasc: Assembler messages:
buildvm_riscv.dasc:3: Error: deprecated - extension `c' in .option arch `-c'
make[4]: *** [Makefile:751: lj_vm.o] Error 1

The bug code line is introduced by debian/patches/0003_support_riscv64.patch

  * Use .option norvc for avoiding compressed instructions.
    (LP: #2121590)

Thanks for considering the patch.


-- System Information:
Debian Release: forky/sid
  APT prefers questing
  APT policy: (500, 'questing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386, riscv64

Kernel: Linux 6.16.0-16-generic (SMP w/32 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
-------------- next part --------------
diff -Nru luajit-2.1.0+openresty20250117/debian/patches/0003_support_riscv64.patch luajit-2.1.0+openresty20250117/debian/patches/0003_support_riscv64.patch
--- luajit-2.1.0+openresty20250117/debian/patches/0003_support_riscv64.patch	2025-02-05 17:27:22.000000000 +0100
+++ luajit-2.1.0+openresty20250117/debian/patches/0003_support_riscv64.patch	2025-08-28 14:03:37.000000000 +0200
@@ -3,7 +3,7 @@
 Author: infiwang at pm.me
 Origin: https://github.com/plctlab/LuaJIT/commits/riscv64-v2.1-branch/
 Bug: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1034484
-Last-Update: 2024-06-25
+Last-Update: 2024-08-28
 ---
 This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
 Index: luajit/Makefile
@@ -1578,7 +1578,7 @@
    fprintf(ctx->fp, "\t.set nomips16\n\t.abicalls\n\t.set noreorder\n\t.set nomacro\n");
  #endif
 +#if LJ_TARGET_RISCV64
-+  fprintf(ctx->fp, ".option arch, -c\n.option norelax\n");
++  fprintf(ctx->fp, ".option norvc\n.option norelax\n");
 +#endif
    emit_asm_align(ctx, 4);