1 files changed, 1 insertions, 0 deletions
diff --git a/extconf.rb b/extconf.rb
index df43ab6..fd1b944 100644
--- a/extconf.rb
+++ b/extconf.rb
@@ -28,6 +28,7 @@ if with_config("debug") or enable_config("debug") # '--enable-debug' or '--with-
 end
 
 if have_header("openssl/ssl.h")
+	have_header("openssl/e_os.h")
 	if have_library(CRYPTOLIB, "OpenSSL_add_all_algorithms") and have_library(SSLLIB, "SSLv23_method")
 		create_makefile("openssl")
 	end