libevent: cap MACOSX_DEPLOYMENT_TARGET at 10.16

+4
+4
pkgs/development/libraries/libevent/default.nix
··· 13 13 sha256 = "1fq30imk8zd26x8066di3kpc5zyfc5z6frr3zll685zcx4dxxrlj"; 14 14 }; 15 15 16 + preConfigure = lib.optionalString (lib.versionAtLeast stdenv.hostPlatform.darwinMinVersion "11") '' 17 + MACOSX_DEPLOYMENT_TARGET=10.16 18 + ''; 19 + 16 20 # libevent_openssl is moved into its own output, so that openssl isn't present 17 21 # in the default closure. 18 22 outputs = [ "out" "dev" ]