编译报错

[ScottYijun]

src/openssl_digest.h:42:16: error: field ‘_ctx’ has incomplete type ‘EVP_MD_CTX {aka evp_md_ctx_st}’
EVP_MD_CTX _ctx;
^~~~
In file included from /usr/local/include/openssl/evp.h:22:0,
from src/openssl_digest.h:21,
from src/openssl_digest.cpp:17:
/usr/local/include/openssl/types.h:102:16: note: forward declaration of ‘EVP_MD_CTX {aka struct evp_md_ctx_st}’
typedef struct evp_md_ctx_st EVP_MD_CTX;
^~~~~~~~~~~~~
src/openssl_digest.cpp: In destructor ‘virtual rtcbase::OpenSSLDigest::~OpenSSLDigest()’:
src/openssl_digest.cpp:31:5: error: ‘EVP_MD_CTX_cleanup’ was not declared in this scope
EVP_MD_CTX_cleanup(&_ctx);
^~~~~~~~~~~~~~~~~~
src/openssl_digest.cpp:31:5: note: suggested alternative: ‘EVP_MD_CTX_create’
EVP_MD_CTX_cleanup(&_ctx);
^~~~~~~~~~~~~~~~~~
EVP_MD_CTX_create
Makefile:575: recipe for target 'src/rtcbase_openssl_digest.o' failed
make: *** [src/rtcbase_openssl_digest.o] Error 1
这个报错是什么意思

[str2num]

看样子是你的openssl版本不兼容，换成1.0的版本试试，https://blog.csdn.net/henter/article/details/81903692 这篇文章参考下，openssl 1.0.2k-19.el7这个版本应该没问题。

[wangbing8895]

您好！请教一下，你抽取 webrtc rtc_base,为啥引入 libev库呢？

[str2num]

这个库定位是服务端用的，引入libev是方便后续的高性能ice通道建立以及媒体流的网络分发

[flash91120]

本人在ubuntu16.04.4下编译报错
NOTICE: 05-04 14:42:51 [action=get_cpp_depend_files cmd=[g++ -MG -MM -I. -I./include -I./output - ... PIC -std=gnu++11 src/openssl_adapter.cpp] status=1 err=[In file included from src/openssl_adapter.cpp:27:0:
src/openssl.h:24:2: error: #error OpenSSL is older than 1.0.0, which is the minimum supported version.
#error OpenSSL is older than 1.0.0, which is the minimum supported version.
^
] ]
FATAL: 05-04 14:42:51 [action=get_cpp_depend_files cmd=[g++ -MG -MM -I.
-I./include
-I./output
-I./output/include
-I./deps/libev/include -D_GNU_SOURCE
-D__STDC_LIMIT_MACROS
-DVERSION="1.9.8.7" -g
-pipe
-W
-Wall
-fPIC
-std=gnu++11 src/openssl_adapter.cpp] status=1 err=[In file included from src/openssl_adapter.cpp:27:0:
src/openssl.h:24:2: error: #error OpenSSL is older than 1.0.0, which is the minimum supported version.
#error OpenSSL is older than 1.0.0, which is the minimum supported version.
^
]]
请问是什么原因