ext/ruby_nacl/extconf.rb in ruby_nacl-0.1.0 vs ext/ruby_nacl/extconf.rb in ruby_nacl-0.1.1

@@ -3,16 +3,19 @@
 hostname = `hostname`.split('.')[0]
 arch = `uname -m`.strip == 'x86_64' ? 'amd64' : 'x86'
 
 HEADER_DIRS = ["NaCl/build/#{hostname}/include/#{arch}"]
 LIB_DIRS = ["NaCl/build/#{hostname}/lib/#{arch}"]
-
 $objs = ["NaCl/build/#{hostname}/lib/#{arch}/randombytes.o", "ruby_nacl.o"]
 
+if !File.exists?(HEADER_DIRS[0]) || !File.exists?(LIB_DIRS[0]) || !File.exists?($objs[0])
+  puts "Building NaCl library before creating Makefile..."
+  `cd NaCl; ./do`
+end
+
 dir_config('ruby_nacl', HEADER_DIRS, LIB_DIRS)
 
-while !find_library('nacl', nil, *LIB_DIRS) || !find_header('crypto_box.h', *HEADER_DIRS) || !File.exists?($objs[0])
-  puts "Building NaCl library before creating Makefile..."
-  `cd nacl; rm -rf build; ./do`
+while !find_library('nacl', nil, *LIB_DIRS) || !find_header('crypto_box.h', *HEADER_DIRS)
+  `cd NaCl; ./do`
 end
 
 create_makefile('ruby_nacl')