src/ruby/ext/grpc/extconf.rb

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require 'mkmf'

LIBDIR = RbConfig::CONFIG['libdir']
INCLUDEDIR = RbConfig::CONFIG['includedir']

HEADER_DIRS = [
  # Search /opt/local (Mac source install)
  '/opt/local/include',

  # Search /usr/local (Source install)
  '/usr/local/include',

  # Check the ruby install locations
  INCLUDEDIR
]

LIB_DIRS = [
  # Search /opt/local (Mac source install)
  '/opt/local/lib',

  # Search /usr/local (Source install)
  '/usr/local/lib',

  # Check the ruby install locations
  LIBDIR
]

fail 'libdl not found' unless have_library('dl', 'dlopen')
fail 'zlib not found' unless have_library('z', 'inflate')

grpc_root = File.expand_path(File.join(File.dirname(__FILE__), '../../../..'))

grpc_config = ENV['GRPC_CONFIG'] || 'opt'

if ENV.key?('GRPC_LIB_DIR')
  grpc_lib_dir = File.join(grpc_root, ENV['GRPC_LIB_DIR'])
else
  grpc_lib_dir = File.join(File.join(grpc_root, 'libs'), grpc_config)
end

unless File.exist?(File.join(grpc_lib_dir, 'libgrpc.a'))
  print "Building internal gRPC\n"
  system("make -C #{grpc_root} static_c CONFIG=#{grpc_config}")
end

$CFLAGS << ' -I' + File.join(grpc_root, 'include')
$LDFLAGS << ' ' + File.join(grpc_lib_dir, 'libgrpc.a')
$LDFLAGS << ' ' + File.join(grpc_lib_dir, 'libgpr.a')
if grpc_config == 'gcov'
  $CFLAGS << ' -O0 -fprofile-arcs -ftest-coverage'
  $LDFLAGS << ' -fprofile-arcs -ftest-coverage -rdynamic'
end

$CFLAGS << ' -std=c99 '
$CFLAGS << ' -Wall '
$CFLAGS << ' -Wextra '
$CFLAGS << ' -pedantic '
$CFLAGS << ' -Werror '

$LDFLAGS << ' -lssl '
$LDFLAGS << ' -lcrypto '

create_makefile('grpc/grpc')