exit(0) if ENV["USE_SYSTEM_LIBYAJL2"] require 'rbconfig' require 'fileutils' require 'mkmf' module Libyajl2Build class BuildError < StandardError; end LIBYAJL2_VENDOR_DIR = File.expand_path("../vendor/yajl", __FILE__).freeze PREFIX = File.expand_path("../../../lib/libyajl2/vendored-libyajl2", __FILE__).freeze def self.windows? !!(RUBY_PLATFORM =~ /mswin|mingw|windows/) end def self.libyajl2_vendor_dir LIBYAJL2_VENDOR_DIR end def self.prefix PREFIX end def self.setup_env RbConfig::MAKEFILE_CONFIG['CC'] = ENV['CC'] if ENV['CC'] # set some sane defaults if RbConfig::MAKEFILE_CONFIG['CC'] =~ /gcc|clang/ # magic flags copied from upstream yajl build system (-std=c99 is necessary for older gcc) $CFLAGS << " -std=c99 -pedantic -Wpointer-arith -Wno-format-y2k -Wstrict-prototypes -Wmissing-declarations -Wnested-externs -Wextra -Wundef -Wwrite-strings -Wold-style-definition -Wredundant-decls -Wno-unused-parameter -Wno-sign-compare -Wmissing-prototypes" $CFLAGS << " -O2" # match what the upstream uses for optimization # create the implib on windows if windows? $LDFLAGS << " -Wl,--export-all-symbols -Wl,--enable-auto-import -Wl,--out-implib=libyajl.dll.a" end end $CFLAGS << " -DNDEBUG" # ENV vars can override everything $CFLAGS = ENV['CFLAGS'] if ENV['CFLAGS'] $LDFLAGS = ENV['LDFLAGS'] if ENV['LDFLAGS'] end def self.makemakefiles setup_env dir_config("libyajl") create_makefile("libyajl") # ruby on windows helpfully drops a *.def file to export Init_libyajl which we don't need because this isn't really a ruby extension FileUtils.rm_f(Dir["*.def"]) # and we need to surgically remove it from the LDFLAGS $LDFLAGS.gsub!(/\S+.def/, ' ') # we cheat and build it right away... system("make V=1") # ...so we can hack up what install does later and copy over the include files File.open("Makefile", "w+") do |f| f.write <