From 7f76daacdb0190ce91c95111cc3eba49cea41fd7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20=C4=8Cun=C3=A1t?= <v@cunat.cz>
Date: Fri, 29 May 2020 15:29:20 +0200
Subject: [PATCH] zstd: get rid of static libs if enableShared

---
 pkgs/tools/compression/zstd/default.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/tools/compression/zstd/default.nix b/pkgs/tools/compression/zstd/default.nix
index a7ae4d0b3ba..ee006a55ea3 100644
--- a/pkgs/tools/compression/zstd/default.nix
+++ b/pkgs/tools/compression/zstd/default.nix
@@ -30,6 +30,7 @@ stdenv.mkDerivation rec {
 
   cmakeFlags = [
     "-DZSTD_BUILD_SHARED:BOOL=${if enableShared then "ON" else "OFF"}"
+    # They require STATIC for bin/zstd and tests.
     "-DZSTD_LEGACY_SUPPORT:BOOL=${if legacySupport then "ON" else "OFF"}"
     "-DZSTD_BUILD_TESTS:BOOL=ON"
   ];
@@ -54,6 +55,8 @@ stdenv.mkDerivation rec {
     substituteInPlace ../programs/zstdless \
       --replace "zstdcat" "$bin/bin/zstdcat"
   '';
+  # Don't duplicate the library code in runtime closures.
+  postInstall = stdenv.lib.optionalString enableShared ''rm "$out"/lib/libzstd.a'';
 
   outputs = [ "bin" "dev" "man" "out" ];