CMake Cyclone DDS中出错，找不到openssl

Question

我如何修复这个错误，当我做Cmake时，它找不到Openssl，我正在尝试在windows中安装cycloneDDS。

rkpsr@Rahul MINGW64 ~
$ cd cyclonedds

rkpsr@Rahul MINGW64 ~/cyclonedds (master)
$ cd build

rkpsr@Rahul MINGW64 ~/cyclonedds/build (master)
$ cmake -G "Eclipse CDT4 - MinGW Makefiles" -DCMAKE_INSTALL_PREFIX=/user -DBUILD_EXAMPLES=ON ..-- Eclipse version is set to 3.6 (Helios). Adjust CMAKE_ECLIPSE_VERSION if this is wrong.
-- Could NOT find OpenSSL, try to set the path to OpenSSL root folder in the system variable OPENSSL_ROOT_DIR (missing: OPENSSL_CRYPTO_LIBRARY OPENSSL_INCLUDE_DIR)
-- Building without OpenSSL support
-- Feature rusage disabled
-- Feature netstat disabled
CMake Error at C:/Program Files/CMake/share/cmake-3.20/Modules/FindPackageHandleStandardArgs.cmake:230 (message):
  Could NOT find BISON (missing: BISON_EXECUTABLE) (Required is at least
  version "3.0.4")
Call Stack (most recent call first):
  C:/Program Files/CMake/share/cmake-3.20/Modules/FindPackageHandleStandardArgs.cmake:594 (_FPHSA_FAILURE_MESSAGE)
  C:/Program Files/CMake/share/cmake-3.20/Modules/FindBISON.cmake:306 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
  src/idl/CMakeLists.txt:17 (find_package)


-- Configuring incomplete, errors occurred!
See also "C:/Users/rkpsr/cyclonedds/build/CMakeFiles/CMakeOutput.log".
See also "C:/Users/rkpsr/cyclonedds/build/CMakeFiles/CMakeError.log".

rkpsr@Rahul MINGW64 ~/cyclonedds/build (master)

我已经在Path变量中包含了Openssl，作为

Openssl Environment Variable

OpenSSL Openssl verification

Answer 1

它找不到OpenSSL，但这意味着它只是在没有任何需要OpenSSL的特性的情况下构建。导致构建失败的错误是因为我找不到"bison"，这是README中列出的先决条件之一。

除此之外，MinGW还有它自己的怪癖。我知道其他人用它遇到过一些issues建筑，但他们似乎毫不费力地通过了CMake阶段。

我们目前只检查它是否使用Visual Studio构建。这在一定程度上是因为资源有限，但也是因为您可以很容易地在MinGW中使用使用VS构建的应用程序，因此它不会强迫您使用VS构建所有内容。

无论如何，任何能让它与MinGW配合得很好的补丁都非常受欢迎。