Install nng in Apple Silicon (M1)

要裝到機器上可以照nng上面的方法:

  $ mkdir build
  $ cd build
  $ cmake -G Ninja ..
  $ ninja
  $ ninja test
  $ ninja install

這邊到了ninja install會出錯, 因為非Apple Silicon的會裝到/usr/local, 但是Apple Silicon / M1就要裝到 /opt/homebrew 下面.

所以請把build目錄下的cmake_install.cmake改成

# Set the install prefix
if(NOT DEFINED CMAKE_INSTALL_PREFIX)
  set(CMAKE_INSTALL_PREFIX "/opt/homebrew")
endif()

然後跑ninja install就可以搞定

Now nng installation is not working on brew or manually install.

The error message as following when doing manually installation:

[0/1] Install the project...
-- Install configuration: ""
CMake Error at src/cmake_install.cmake:41 (file):
  file cannot create directory: /usr/local/lib.  Maybe need administrative
  privileges.
Call Stack (most recent call first):
  cmake_install.cmake:42 (include)


FAILED: CMakeFiles/install.util
cd /xxx/nng/build && /opt/homebrew/Cellar/cmake/3.19.4/bin/cmake -P cmake_install.cmake
ninja: build stopped: subcommand failed.

But here is a way to fix the manual installation.

Change CMAKE_INSTALL_PREFIX in cmake_install.cmake of build folder from /usr/local to be /opt/homebrew, then run ninja install.

Hope this help

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