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(PA-6387) Enable curl 8 #843
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Previously, curl 8 on macOS 11 & 12 ARM failed to run: # /opt/puppetlabs/puppet/bin/curl --version dyld[3871]: symbol not found in flat namespace (_SSL_get0_group_name) This occurred because we cross-compiled curl (and other components) using headers from homebrew's openssl 3.3.0. But at runtime, we loaded the libssl.dylib shared library that we built from openssl 3.0.13. Due to the version mismatch between headers and libraries, curl tried to call the SSL_get0_group_name function that only exists in openssl 3.2 and up. This commit removes the homebrew symlinks for openssl and libyaml so that they are not visible to our build process. Some background about why this only affects cross compiled macOS builds. In order to cross-compile ruby 3.2 on ARM, we have to install ruby 3.2 Intel and use that as the base ruby, see notes/cross-compiling.md for details. On macOS, we use homebrew to install build dependencies. Homebrew's [email protected] package depends on openssl@3[1], which is currently 3.3.0[2]. When homebrew installs packages, it creates symlinks in the /usr/local directory: # ls -l /usr/local/include/openssl ... /usr/local/include/openssl -> ../Cellar/openssl@3/3.3.0/include/openssl On macOS, we compile using clang, which uses the following search path for headers: # gcc -v main.c Apple clang version 13.0.0 (clang-1300.0.27.3) ... #include <...> search starts here: /usr/local/include /Library/Developer/CommandLineTools/usr/lib/clang/13.0.0/include /Library/Developer/CommandLineTools/SDKs/MacOSX12.1.sdk/usr/include /Library/Developer/CommandLineTools/usr/include /Library/Developer/CommandLineTools/SDKs/MacOSX12.1.sdk/System/Library/Frameworks (framework directory) End of search list. Since /usr/local/include is the first directory, we are mistakenly compiling against homebrew's openssl. However, it wasn't an issue until we bumped to curl 8, because the conditional calls SSL_get0_group_name doesn't exist in curl 7[3] [1] https://github.com/Homebrew/homebrew-core/blob/6fd6f60a799501e7c093b695cc830a8708bd1c14/Formula/r/ruby%403.2.rb#L30 [2] https://github.com/Homebrew/homebrew-core/blob/6fd6f60a799501e7c093b695cc830a8708bd1c14/Formula/o/openssl%403.rb#L4 [3] https://github.com/curl/curl/blob/7490d5488e0e7835199285b0568a1c2e0d51b6a9/lib/vtls/openssl.c#L4295-L4296
In May 2018, commit fd8c9e4 added yaml-cpp as a component to the agent-runtime-master project. In Oct 2018, commit bc865b3 installed yaml-cpp using homebrew for agent 5.5.x on macOS 10.12. This means yaml-cpp headers are present in /usr/local/include and take precedence over our component. This drops yaml-cpp from brew install, which ensures we're compiling against the correct yaml-cpp headers in our component.
cthorn42
approved these changes
May 10, 2024
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brew unlink openssl libyamlso they don't conflict with our runtime componentsyaml-cppas a build requirement on macOStoken-sargentpix-arm64-macos12-6strange-toothpix-arm64-macos13-1dismal-muttonpix-arm64-macos14-3freer-pythonThere is an issue with
ffiandnokogirion macOS 12 ARM unrelated to this PR: #846