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{ lib, stdenv, fetchurl, autoreconfHook }:
stdenv.mkDerivation rec {
pname = "gperf";
version = "3.0.4";
src = fetchurl {
url = "mirror://gnu/gperf/gperf-${version}.tar.gz";
sha256 = "0gnnm8iqcl52m8iha3sxrzrl9mcyhg7lfrhhqgdn4zj00ji14wbn";
};
nativeBuildInputs = [ autoreconfHook ];
patches = [
./gperf-ar-fix.patch
# Clang 16 defaults to C++17, which does not allow `register` as a storage class specifier.
./gperf-c++17-register-fix.patch
];
# Replace the conditional inclusion of `string.h` on VMS with unconditional inclusion on all
# platforms. Otherwise, clang 16 fails to build gperf due to use of undeclared library functions.
postPatch = ''
sed '/#ifdef VMS/{N;N;N;N;N;s/.*/#include <string.h>/}' -i lib/getopt.c
'';
meta = {
description = "Perfect hash function generator";
longDescription = ''
GNU gperf is a perfect hash function generator. For a given
list of strings, it produces a hash function and hash table, in
form of C or C++ code, for looking up a value depending on the
input string. The hash function is perfect, which means that
the hash table has no collisions, and the hash table lookup
needs a single string comparison only.
GNU gperf is highly customizable. There are options for
generating C or C++ code, for emitting switch statements or
nested ifs instead of a hash table, and for tuning the algorithm
employed by gperf.
'';
license = lib.licenses.gpl3Plus;
homepage = "https://www.gnu.org/software/gperf/";
platforms = lib.platforms.unix;
};
}
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