libnfs: allow building with pthread support
libnfs is not thread-safe by default. Making it thread-safe requires building it with pthread support and enabling multi-threading at runtime using nfs_mt_service_thread_start() function. The patch allows to optionally build libnfs with multi-threading support. This is not enabled by default to avoid runtime costs for programs that don't require libnfs to be thread-safe, so a separate top level package 'libnfs-pthread' is added.
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@ -1,4 +1,4 @@
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{ lib, stdenv, fetchFromGitHub, autoreconfHook }:
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{ lib, stdenv, fetchFromGitHub, fetchpatch, autoreconfHook }:
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stdenv.mkDerivation rec {
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pname = "libnfs";
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@ -13,7 +13,22 @@ stdenv.mkDerivation rec {
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nativeBuildInputs = [ autoreconfHook ];
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NIX_CFLAGS_COMPILE = lib.optionalString stdenv.cc.isClang "-Wno-error=tautological-compare";
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patches = [
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# Fixes 100% CPU usage in multi-threaded mode
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(fetchpatch {
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url = "https://github.com/sahlberg/libnfs/commit/34d6fe37e986da5b0ced86cd028a88e482537d5a.patch";
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sha256 = "sha256-i7mi+TVdkLb4MztT5Ic/Q8XBIWk9lo8v5bNjHOr6LaI=";
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})
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# Fixes deprecation warnings on macOS
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(fetchpatch {
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url = "https://github.com/sahlberg/libnfs/commit/f6631c54a7b0385988f11357bf96728a6d7345b9.patch";
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sha256 = "sha256-xLRZ9J1vr04n//gNv9ljUBt5LHUGBRRVIXJCMlFbHFI=";
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})
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];
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configureFlags = [
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"--enable-pthread"
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];
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enableParallelBuilding = true;
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