gsl/gsl-2.7.1-3-x86_64.pkg.tar.zst build reproducible in our test framework:
a08c9f61ab8cc7728eac7fc4dd0a9f7a43de73c568b38ed2fddeac9a20f86cbf gsl-2.7.1-3-x86_64.pkg.tar.zst
99606e16591a2dbb2a35dd8daaf8a9e51de42cf83f7da88dda2a29b99d6cbab2 gsl-2.7.1-3-x86_64.pkg.tar.zst-b1.BUILDINFO.txt
99606e16591a2dbb2a35dd8daaf8a9e51de42cf83f7da88dda2a29b99d6cbab2 gsl-2.7.1-3-x86_64.pkg.tar.zst-b2.BUILDINFO.txt