Findopenssl.cmake 无法找到 OpenSSL，编译 restbed，C++

Findopenssl.cmake fails to find OpenSSL, compiling restbed, C++

本文关键字：编译 restbed C++ OpenSSL cmake Findopenssl      更新时间：2023-10-16

我正在尝试在 Debian 9.7 上使用 cmake 3.7.2 来编译 restbed，一个用于 Web 服务的C++框架。

我按照自述文件的说明进行操作。它们很简单。 

git clone --recursive https://github.com/corvusoft/restbed.git
mkdir restbed/build
cd restbed/build
cmake [-DBUILD_SSL=NO] ..
make install
make test

但是我在运行cmake时出现以下错误： 

-- Found ASIO include at: /home/ben/Workspaces/C_Experiments/restbed/dependency/asio/asio/include
-- Found Catch include at: /home/ben/Workspaces/C_Experiments/restbed/dependency/catch/single_include
CMake Error at cmake/Findopenssl.cmake:23 (message):
  Failed to locate OpenSSL dependency.  see restbed/dependency/openssl;
  ./config shared; make all
Call Stack (most recent call first):
  CMakeLists.txt:47 (find_package)

所以我检查了Findopenssl.cmake，发现它正在许多地方寻找图书馆。 

find_library( ssl_LIBRARY_STATIC libssl.a  ssleay32.lib HINTS "${PROJECT_SOURCE_DIR}/dependency/openssl/out32dll" "${PROJECT_SOURCE_DIR}/dependency/openssl" "/usr/local/opt/openssl/lib" "/usr/lib" "/usr/local/lib" "/opt/local/lib" )
find_library( crypto_LIBRARY_STATIC libcrypto.a libeay32.lib HINTS "${PROJECT_SOURCE_DIR}/dependency/openssl/out32dll" "${PROJECT_SOURCE_DIR}/dependency/openssl" "/usr/local/opt/openssl/lib" "/usr/lib" "/usr/local/lib" "/opt/local/lib" )
find_library( ssl_LIBRARY_SHARED libssl.so libssl.dylib ssleay32.dll HINTS "${PROJECT_SOURCE_DIR}/dependency/openssl/out32dll" "${PROJECT_SOURCE_DIR}/dependency/openssl" "/usr/local/opt/openssl/lib" "/usr/lib" "/usr/local/lib" "/opt/local/lib" )
find_library( crypto_LIBRARY_SHARED libcrypto.so libcrypto.dylib libeay32.dll HINTS "${PROJECT_SOURCE_DIR}/dependency/openssl/out32dll" "${PROJECT_SOURCE_DIR}/dependency/openssl" "/usr/local/opt/openssl/lib" "/usr/lib" "/usr/local/lib" "/opt/local/lib" )
find_path( ssl_INCLUDE openssl/ssl.h HINTS "${PROJECT_SOURCE_DIR}/dependency/openssl/inc32" "${PROJECT_SOURCE_DIR}/dependency/openssl/include" "/usr/local/opt/openssl/include" "/usr/include" "/usr/local/include" "/opt/local/include" )
if ( ssl_LIBRARY_STATIC AND ssl_LIBRARY_SHARED AND crypto_LIBRARY_STATIC AND crypto_LIBRARY_SHARED )
    set( OPENSSL_FOUND TRUE )
    add_definitions( -DBUILD_SSL=TRUE )
    if ( APPLE AND BUILD_SSL )
        set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-deprecated-declarations" )
    endif( )
    message( STATUS "Found OpenSSL include at: ${ssl_INCLUDE}" )
    message( STATUS "Found OpenSSL library at: ${ssl_LIBRARY_STATIC}" )
    message( STATUS "Found OpenSSL library at: ${ssl_LIBRARY_SHARED}" )
    message( STATUS "Found Crypto library at: ${crypto_LIBRARY_STATIC}" )
    message( STATUS "Found Crypto library at: ${crypto_LIBRARY_SHARED}" )
else ( )
    message( FATAL_ERROR "Failed to locate OpenSSL dependency. see restbed/dependency/openssl; ./config shared; make all" )
endif ( )

我也找不到这些文件。我已安装 openssl 版本，版本 1.1.0

我在这里错过了什么明显的东西？

谢谢

尝试使用不带括号的 cmake 命令： 

cmake -DBUILD_SSL=NO ..

Brady Dean是对的，我只安装了openssl，而不是libssl-dev。

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