1 files changed, 32 insertions, 0 deletions
diff --git a/jni/ruby/ext/digest/sha2/extconf.rb b/jni/ruby/ext/digest/sha2/extconf.rb
new file mode 100644
index 0000000..64ce4b6
--- /dev/null
+++ b/jni/ruby/ext/digest/sha2/extconf.rb
@@ -0,0 +1,32 @@
+# -*- coding: us-ascii -*-
+# $RoughId: extconf.rb,v 1.4 2001/08/14 19:54:51 knu Exp $
+# $Id: extconf.rb 47802 2014-10-05 02:03:55Z nobu $
+
+require "mkmf"
+
+$defs << "-DHAVE_CONFIG_H"
+$INCFLAGS << " -I$(srcdir)/.."
+
+$objs = [ "sha2init.#{$OBJEXT}" ]
+
+if !with_config("bundled-sha2") &&
+    (dir_config("openssl")
+     pkg_config("openssl")
+     require File.expand_path('../../../openssl/deprecation', __FILE__)
+     have_library("crypto")) &&
+    %w[SHA256 SHA512].all? {|d| OpenSSL.check_func("#{d}_Transform", "openssl/sha.h")} &&
+    %w[SHA256 SHA512].all? {|d| have_type("#{d}_CTX", "openssl/sha.h")}
+  $objs << "sha2ossl.#{$OBJEXT}"
+  $defs << "-DSHA2_USE_OPENSSL"
+else
+  have_type("u_int8_t")
+  $objs << "sha2.#{$OBJEXT}"
+end
+
+have_header("sys/cdefs.h")
+
+$preload = %w[digest]
+
+if have_type("uint64_t", "defs.h", $defs.join(' '))
+  create_makefile("digest/sha2")
+end