custom csound development config using nix

Custom.cmake

set(CMAKE_OSX_ARCHITECTURES "arm64")
set(CMAKE_APPLE_SILICON_PROCESSOR "arm64")

execute_process(
    COMMAND bash "-c"
    "nix-build -E 'let pkgs = import <nixpkgs> {}; in pkgs.libsndfile.out' --no-out-link | awk '{print $1\"/lib/libsndfile.dylib\"}'"
    OUTPUT_VARIABLE LIBSNDFILE_LIBRARY
    OUTPUT_STRIP_TRAILING_WHITESPACE)
execute_process(
    COMMAND bash "-c"
    "nix-build -E 'let pkgs = import <nixpkgs> {}; in pkgs.libsndfile.dev' --no-out-link | awk '{print $1\"/include\"}'"
    OUTPUT_VARIABLE SNDFILE_H_PATH
    OUTPUT_STRIP_TRAILING_WHITESPACE)

execute_process(
    COMMAND bash "-c"
    "nix-build -E 'let pkgs = import <nixpkgs> {}; in pkgs.bison' --no-out-link | awk '{print $1\"/bin/bison\"}'"
    OUTPUT_VARIABLE BISON_EXECUTABLE
    OUTPUT_STRIP_TRAILING_WHITESPACE)

set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-unused -Wno-unused-variable -Wno-deprecated -Wno-availability -Ofast -DNODEBUG")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unused -Wno-unused-variable -Wno-deprecated -Ofast -DNODEBUG")
set(USE_GETTEXT off)
execute_process(
    COMMAND bash "-c"
    "nix-build -E 'let pkgs = import <nixpkgs> {}; in pkgs.portaudio' --no-out-link | awk '{print $1\"/lib/libportaudio.dylib\"}'"
    OUTPUT_VARIABLE PORTAUDIO_LIBRARIES
    OUTPUT_STRIP_TRAILING_WHITESPACE)
execute_process(
    COMMAND bash "-c"
    "nix-build -E 'let pkgs = import <nixpkgs> {}; in pkgs.portaudio' --no-out-link | awk '{print $1\"/include\"}'"
    OUTPUT_VARIABLE PORTAUDIO_INCLUDE_DIRS
    OUTPUT_STRIP_TRAILING_WHITESPACE)
set(USE_PORTAUDIO ON)
set(CS_FRAMEWORK_DEST "/Users/hlolli/csound/csound/build")
execute_process(
    COMMAND bash "-c"
    "nix-build -E 'let pkgs = import <nixpkgs> {}; in pkgs.libsamplerate.out' --no-out-link | awk '{print $1\"/lib/libsamplerate.dylib\"}'"
    OUTPUT_VARIABLE LIBSAMPLERATE_LIBRARY
    OUTPUT_STRIP_TRAILING_WHITESPACE)

execute_process(
    COMMAND bash "-c"
    "nix-build -E 'let pkgs = import <nixpkgs> {}; in pkgs.libsamplerate.dev' --no-out-link | awk '{print $1\"/include\"}'"
    OUTPUT_VARIABLE LIBSAMPLERATE_INCLUDE_DIRECTORY
    OUTPUT_STRIP_TRAILING_WHITESPACE)

include_directories("${LIBSAMPLERATE_INCLUDE_DIRECTORY}")
set(CMAKE_COMPILER_IS_CLANG 1)
execute_process(
    COMMAND bash "-c"
    "nix-build -E 'let pkgs = import <nixpkgs> {}; in pkgs.gtest.dev' --no-out-link | awk '{print $1\"/include\"}'"
    OUTPUT_VARIABLE GTEST_INCLUDE_DIR
    OUTPUT_STRIP_TRAILING_WHITESPACE)
execute_process(
    COMMAND bash "-c"
    "nix-build -E 'let pkgs = import <nixpkgs> {}; in pkgs.gtest' --no-out-link | awk '{print $1\"/lib/libgtest.dylib\"}'"
    OUTPUT_VARIABLE GTEST_LIBRARY
    OUTPUT_STRIP_TRAILING_WHITESPACE)
execute_process(
    COMMAND bash "-c"
    "nix-build -E 'let pkgs = import <nixpkgs> {}; in pkgs.gtest' --no-out-link | awk '{print $1\"/lib/libgtest_main.dylib\"}'"
    OUTPUT_VARIABLE GTEST_MAIN_LIBRARY
    OUTPUT_STRIP_TRAILING_WHITESPACE)

set(HAVE_LRINT 1)