m4/m4-1.4.19-3-x86_64.pkg.tar.zst build reproducible in our test framework:
ed13c281c60a095759afc0c10dcf9fca71e6db5605f1575f73f5941978c1be11 m4-1.4.19-3-x86_64.pkg.tar.zst
7983e8a98bf21a860bfe8f3c9e1ec642f2c296b2df29d2862123f7cd2453a5c8 m4-1.4.19-3-x86_64.pkg.tar.zst-b1.BUILDINFO.txt
7983e8a98bf21a860bfe8f3c9e1ec642f2c296b2df29d2862123f7cd2453a5c8 m4-1.4.19-3-x86_64.pkg.tar.zst-b2.BUILDINFO.txt