使用libgcrypt v1.5.0的编译器警告

Question

当我用GCRYPT_NO_DEPRECATED定义的示例程序编译时，我会得到以下6个警告：

/usr/local/Cellar/libgcrypt/1.5.0/include/gcrypt.h:1336: warning: ‘gcry_ac_io_mode_t’ is deprecated
/usr/local/Cellar/libgcrypt/1.5.0/include/gcrypt.h:1337: warning: ‘gcry_ac_io_type_t’ is deprecated
/usr/local/Cellar/libgcrypt/1.5.0/include/gcrypt.h:1344: warning: ‘gcry_ac_data_read_cb_t’ is deprecated
/usr/local/Cellar/libgcrypt/1.5.0/include/gcrypt.h:1358: warning: ‘gcry_ac_data_write_cb_t’ is deprecated
/usr/local/Cellar/libgcrypt/1.5.0/include/gcrypt.h:1393: warning: ‘gcry_md_algo_t’ is deprecated
/usr/local/Cellar/libgcrypt/1.5.0/include/gcrypt.h:1401: warning: ‘gcry_md_algo_t’ is deprecated

手动定义_GCRYPT_IN_LIBGCRYPT可以解决6种警告，但手册的告诫相当严格：

带有一个加号下划线的

名称前缀保留给内部使用，应用程序不应该使用。

那么，如何在没有警告的情况下编译gcrypt头呢？

Answer 1

gcrypt作者说，“这是一些编译器中的一个bug”

建议的工作是

#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
before the include, and
#pragma GCC diagnostic warning "-Wdeprecated-declarations"

http://lists.gnupg.org/pipermail/gcrypt-devel/2011-July/001829.html

http://lists.gnupg.org/pipermail/gcrypt-devel/2011-July/001830.html