gperftools/gperftools-2.15-1-x86_64.pkg.tar.zst build reproducible in our test framework:
43599fc8d1f883627caddf3487e0b05863464b49e9f556640bad26582d786860 gperftools-2.15-1-x86_64.pkg.tar.zst
135e0c9c6a48668439448f1d2e233e472bd92db34c88793daab75ff5405f048f gperftools-2.15-1-x86_64.pkg.tar.zst-b1.BUILDINFO.txt
135e0c9c6a48668439448f1d2e233e472bd92db34c88793daab75ff5405f048f gperftools-2.15-1-x86_64.pkg.tar.zst-b2.BUILDINFO.txt