Avoid native arch when building for pypi

[Grufoony]

• Close Avoid arch specific flags when compiling for pypi #386

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.54%. Comparing base (5d36cb9) to head (c9e06b8).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #387   +/-   ##
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  Coverage   83.54%   83.54%           
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  Files          53       53           
  Lines        5401     5401           
  Branches      618      618           
=======================================
  Hits         4512     4512           
  Misses        878      878           
  Partials       11       11           

Flag	Coverage Δ
unittests	83.54% <ø> (ø)

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[Copilot]

Pull request overview

This PR addresses issue #386 by preventing the use of native architecture optimizations (-march=native) when building Python wheels for PyPI distribution. The change ensures that built wheels are compatible with a wider range of CPU architectures rather than being optimized only for the build machine's specific CPU.

Key changes:

• Introduced a new CMake option DSF_OPTIMIZE_ARCH (default: ON) to control architecture-specific optimizations
• Modified build flags to conditionally apply -march=native only when the option is enabled
• Updated PyPI build workflows to explicitly disable architecture optimization via CMAKE_ARGS

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
src/dsf/dsf.hpp	Bumped patch version from 3 to 4 to reflect the new release
CMakeLists.txt	Added DSF_OPTIMIZE_ARCH option and made -march=native flag conditional in Release and Profile build modes
.github/workflows/pypi.yml	Set CMAKE_ARGS: "-DDSF_OPTIMIZE_ARCH=OFF" for all three platform build jobs (Linux, macOS, Windows) to ensure portable wheels

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[Copilot]

The spacing in the if statement is inconsistent with the rest of the file. The file consistently uses if( without a space between if and the opening parenthesis, but this line uses if ( with a space. Please change to if(DSF_OPTIMIZE_ARCH) to match the project's coding style.

[Copilot]

The spacing in the if statement is inconsistent with the rest of the file. The file consistently uses if( without a space between if and the opening parenthesis, but this line uses if ( with a space. Please change to if(DSF_OPTIMIZE_ARCH) to match the project's coding style.