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-rw-r--r--pkgs/tools/networking/socat/default.nix5
1 files changed, 5 insertions, 0 deletions
diff --git a/pkgs/tools/networking/socat/default.nix b/pkgs/tools/networking/socat/default.nix
index c52bdb0802d..255455811a6 100644
--- a/pkgs/tools/networking/socat/default.nix
+++ b/pkgs/tools/networking/socat/default.nix
@@ -23,6 +23,11 @@ stdenv.mkDerivation rec {
       --replace /sbin/ifconfig ifconfig
   '';
 
+  configureFlags = lib.optionals stdenv.hostPlatform.isMusl [
+    # musl doesn't have getprotobynumber_r
+    "sc_cv_getprotobynumber_r=2"
+  ];
+
   buildInputs = [ openssl readline ];
 
   hardeningEnable = [ "pie" ];