{ stdenv, fetchurl }: let version = "4.8.7"; in stdenv.mkDerivation { name = "nspr-${version}"; src = fetchurl { url = "http://ftp.mozilla.org/pub/mozilla.org/nspr/releases/v${version}/src/nspr-${version}.tar.gz"; sha256 = "eb9459c31d43d1000fb1304f1e0cedab0bdac3c54c71988259c1ac10c1fe16a3"; }; preConfigure = "cd mozilla/nsprpub"; configureFlags = "--enable-optimize --disable-debug ${if stdenv.is64bit then "--enable-64bit" else ""}"; postInstall = '' find $out -name "*.a" | xargs rm ''; meta = { homepage = http://www.mozilla.org/projects/nspr/; description = "Netscape Portable Runtime, a platform-neutral API for system-level and libc-like functions"; }; }