tiledb: fix build on darwin; libpqxx: use lib.meta.availableOn to only run tests when supported (#491215)

pkgs/by-name/ti/tiledb/generate_embedded_data_header.patch

@@ -1,14 +0,0 @@
---- a/tiledb/sm/misc/generate_embedded_data_header.script.cmake
-+++ b/tiledb/sm/misc/generate_embedded_data_header.script.cmake
-@@ -40,11 +40,7 @@
- string(MAKE_C_IDENTIFIER ${INPUT_FILENAME} INPUT_VARIABLE)
-
- message(DEBUG "Compressing ${INPUT_FILE} to ${compressed_file}")
--file(ARCHIVE_CREATE OUTPUT "${compressed_file}" PATHS ${INPUT_FILE} FORMAT raw COMPRESSION Zstd
--    # Level 12 was found to have the best balance between compression ratio and speed
--    # but is available in CMake 3.26+.
--    COMPRESSION_LEVEL 9
--)
-+execute_process(COMMAND zstd -9 -c "${INPUT_FILE}" OUTPUT_FILE "${compressed_file}")
- file(SIZE ${compressed_file} COMPRESSED_SIZE)
- message(DEBUG "Compressed size: ${COMPRESSED_SIZE} bytes")

pkgs/by-name/ti/tiledb/package.nix

@@ -26,7 +26,6 @@
   nlohmann_json,
   c-blosc2,
   useAVX2 ? stdenv.hostPlatform.avx2Support,
-  libpqxx,
 }:
 
 let
@@ -47,8 +46,6 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-wzeWLwwsZXtrKsmlglZG7YvIki/ba7IwsDBq+40ltcg=";
   };
 
-  patches = lib.optionals stdenv.hostPlatform.isDarwin [ ./generate_embedded_data_header.patch ];
-
   postPatch = ''
     substituteInPlace tiledb/sm/misc/test/unit_parse_argument.cc \
       --replace-fail '"catch.hpp"' '<catch2/catch_all.hpp>'
@@ -85,7 +82,6 @@ stdenv.mkDerivation (finalAttrs: {
     curl
     file
     libpng
-    libpqxx
     lz4
     nlohmann_json
     onetbb