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