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                The Ultimate Packer for eXecutables
                       https://upx.github.io

Test building UPX with 'zig cc'

This repository consists of a single GitHub Actions workflow file that builds UPX with a recent Zig binary testing 124 different build targets.

See Actions for actual build results and logs.

And visit https://andrewkelley.me/post/zig-cc-powerful-drop-in-replacement-gcc-clang.html for some background info about zig cc.

Noteworthy open zig issues

• ziglang/zig#10411
• ziglang/zig#20690 RFC/Proposal: Turning Zig target triples into quadruples

Noteworthy changes that did improve 'zig cc'

• 2022-11-17 https://github.com/ziglang/zig/commit/88a0f3d windows: fix _tls_index
• 2022-12-28 https://github.com/ziglang/zig/commit/7350f0d mingw: add missing vscprintf.c file
• 2022-12-28 https://github.com/ziglang/zig/commit/34887cf powerpc does not have a red zone
  • TODO: this seems WRONG (but is probably harmless):
    • see https://github.com/torvalds/linux/commit/573ebfa6601f
    • see https://github.com/llvm/llvm-project/commit/660b0d7f7bba
• 2023-01-21 ziglang/zig#14397
  • closes ziglang/zig#12992 zig c++ does not support exceptions on macos
• 2023-01-22 https://github.com/ziglang/zig/commit/aa626de
• 2023-01-22 https://github.com/ziglang/zig/commit/8484df5 zig cc: add -Wno-overriding-t-option to clang on darwin
• 2023-07-21 https://github.com/ziglang/zig/commit/8a18abf Remove the SingleThread limitation for ARM
  • closes ziglang/zig#6573

Other noteworthy changes

• older Windows versions (XP and Vista)
  • 2023-10-02 https://github.com/ziglang/zig/commit/15ce965 define _WIN32_WINNT based on target
    • INFO: this reveals that libunwind cannot be compiled for XP and Vista (i386 only)
      • libunwind needs AcquireSRWLockShared() (>= Windows Vista aka Windows 6)
      • on i386 libunwind also needs EnumProcessModules() from PSABI_VERSION 2, i.e >= Windows 7
  • 2024-01-xx: zig now targets ucrt instead of msvcrt, so Windows 7 is required anyway
    • TODO: is this really true?

Closed zig issues

• ziglang/zig#6573

• ziglang/zig#10989 pthread.h not found for target x86_64-windows-gnu

• ziglang/zig#12828

• ziglang/zig#12886

• ziglang/zig#12992 zig c++ does not support exceptions on macos

• ziglang/zig#13384 zig cc -target -windows-gnu produces a large amount of warnings

• ziglang/zig#13385

• ziglang/zig#13437

• ziglang/zig#17928 zig cc -c -fPIE stopped working

• ziglang/zig#18009 zig cc -c -fstack-protector stopped working

• ziglang/zig#18690 zig cc -target x86_64-windows.win7-gnu stopped working

• ziglang/zig#19206 zig cc -target x86_64-macos-none stopped working

• ziglang/zig#19385 Improve old glibc versions

• ziglang/zig#20359

• ziglang/zig#20376

• ziglang/zig#20389 Some riscv32-linux porting work

• llvm/llvm-project#97222 [MC] Support .cfi_label

• llvm/llvm-project#121819