libbitcoinkernel-sys 0.3.0

Raw FFI bindings to libbitcoinkernel. For safe usage, see the bitcoinkernel crate.
Documentation 
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include(CheckCCompilerFlag)

function(secp256k1_check_c_flags_internal flags output)
  string(MAKE_C_IDENTIFIER "${flags}" result)
  string(TOUPPER "${result}" result)
  set(result "C_SUPPORTS_${result}")
  if(NOT MSVC)
    set(CMAKE_REQUIRED_FLAGS "-Werror")
  endif()

  # This avoids running a linker.
  set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
  check_c_compiler_flag("${flags}" ${result})

  set(${output} ${${result}} PARENT_SCOPE)
endfunction()

# Append flags to the COMPILE_OPTIONS directory property if CC accepts them.
macro(try_append_c_flags)
  secp256k1_check_c_flags_internal("${ARGV}" result)
  if(result)
    add_compile_options(${ARGV})
  endif()
endmacro()