问题:没有找到包裹'libcrypto‘

Question

我看到这个问题“没有包裹'libcrypto‘找到”。几个月前我修复的相同错误是遵循这个解决方案：https://github.com/scipr-lab/libsnark/issues/99，我今天尝试了这个解决方案，但是它已经不再工作了。(我也尝试过“brew安装openssl，brew信息openssl")没有运气。你以前见过这个吗？你能帮我看看吗？

-- Checking for module 'libcrypto'
--   No package 'libcrypto' found
CMake Error at /usr/local/Cellar/cmake/3.15.4/share/cmake/Modules/FindPkgConfig.cmake:458 (message):
  A required package was not found
Call Stack (most recent call first):
  /usr/local/Cellar/cmake/3.15.4/share/cmake/Modules/FindPkgConfig.cmake:637 (_pkg_check_modules_internal)
  PlaylistParser/src/CMakeLists.txt:2 (pkg_check_modules)


-- Configuring incomplete, errors occurred!

Answer 1

brew info openssl说：(对我来说，如果你的版本不同，你可能会不一样)

openssl@1.1 is keg-only, which means it was not symlinked into /usr/local,
because openssl/libressl is provided by macOS so don't link an incompatible version.

If you need to have openssl@1.1 first in your PATH run:
  echo 'export PATH="/usr/local/opt/openssl@1.1/bin:$PATH"' >> ~/.zshrc

For compilers to find openssl@1.1 you may need to set:
  export LDFLAGS="-L/usr/local/opt/openssl@1.1/lib"
  export CPPFLAGS="-I/usr/local/opt/openssl@1.1/include"

For pkg-config to find openssl@1.1 you may need to set:
  export PKG_CONFIG_PATH="/usr/local/opt/openssl@1.1/lib/pkgconfig"

因为您的CMake脚本似乎使用pkg-config，所以您只需要在运行cmake之前执行最后一条语句。

Answer 2

当我运行./install_prereq install-unpackaged命令时，我得到了以下错误。

配置:错误:未满足包要求(libcrypto >= 1.0.1)：

没有找到'libcrypto‘包裹

如果在非标准前缀中安装了软件，请考虑调整PKG_CONFIG_PATH环境变量。

或者，您可以设置环境变量crypto_CFLAGS和crypto_LIBS，以避免调用pkg-config。有关详细信息，请参阅pkg-config手册页。

然后运行以下命令，解决了问题；

yum install openssl-devel