RVM install ruby 2.6.4 fails with makefile error: implicit declaration of function 'ffi_prep_closure' is invalid in C99

Question

RVM rvm 1.29.12-next

Mac OS M1 芯片上的 Big Sur

rvm install 2.6.4 失败：

Error running '__rvm_make -j8',
please read /Users/jason/.rvm/log/1626110300_ruby-2.6.4/make.log

There has been an error while running make. Halting the installation.

makefile 错误是：

error: implicit declaration of function 'ffi_prep_closure' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
    result = ffi_prep_closure(pcl, cif, callback, (void *)self);

Answer 1

这是由于您的 shell 中未设置 RVM 的环境标志造成的。

brew info libffi

会告诉你需要的变量：

要让编译器找到 libffi，您可能需要设置：导出 LDFLAGS="-L/opt/homebrew/opt/libffi/lib" 导出 CPPFLAGS="-I/opt/homebrew/opt/libffi/include"

要让 pkg-config 找到 libffi，您可能需要设置：导出 PKG_CONFIG_PATH="/opt/homebrew/opt/libffi/lib/pkgconfig"

对于 ZSH，编辑 ~/.zshenv 并添加：

export LDFLAGS="-L/opt/homebrew/opt/libffi/lib"
export CPPFLAGS="-I/opt/homebrew/opt/libffi/include"
export PKG_CONFIG_PATH="/opt/homebrew/opt/libffi/lib/pkgconfig"

关闭并重新打开您的终端window或source ~/.zshrc以加载您的更改

检查你的工作

% echo $LDFLAGS
-L/opt/homebrew/opt/libffi/lib
% echo $CPPFLAGS
-I/opt/homebrew/opt/libffi/include
% echo $PKG_CONFIG_PATH
/opt/homebrew/opt/libffi/lib/pkgconfig

(确认环境变量正确)

重新尝试安装您要安装的 rvm 版本。

RVM install ruby 2.6.4 fails with makefile error: implicit declaration of function 'ffi_prep_closure' is invalid in C99

RVM install ruby 2.6.4 fails with makefile error: implicit declaration of function 'ffi_prep_closure' is invalid in C99

ruby

rvm

macos-big-sur