ffiインストールエラー対策
bundle installで下記のエラーが出る
1 error generated.
make: *** [Function.o] Error 1
make failed, exit code 2
Gem files will remain installed in /Users/inouehiroki/ghq/github.com/SchooLynk/schoolynk-intelligence-api/vendor/bundle/ruby/2.6.0/gems/ffi-1.11.1 for inspection.
Results logged to /Users/inouehiroki/ghq/github.com/SchooLynk/schoolynk-intelligence-api/vendor/bundle/ruby/2.6.0/extensions/-darwin-20/2.6.0/ffi-1.11.1/gem_make.out
An error occurred while installing ffi (1.11.1), and Bundler cannot continue.
Make sure that `gem install ffi -v '1.11.1' --source 'https://rubygems.org/'` succeeds before bundling.
In Gemfile:
guard-rspec was resolved to 4.7.3, which depends on
guard was resolved to 2.15.1, which depends on
listen was resolved to 3.1.5, which depends on
rb-inotify was resolved to 0.10.0, which depends on
gem install ffi -v '1.11.1' --source 'https://rubygems.org/'と言われているので実施する
➜ schoolynk-intelligence-api git:(master) gem install ffi -v '1.11.1' --source 'https://rubygems.org/'
Building native extensions. This could take a while...
ERROR: Error installing ffi:
ERROR: Failed to build gem native extension.
current directory: /Users/inouehiroki/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/ffi-1.11.1/ext/ffi_c
/Users/inouehiroki/.rbenv/versions/2.6.6/bin/ruby -I /Users/inouehiroki/.rbenv/versions/2.6.6/lib/ruby/2.6.0 -r ./siteconf20210605-43335-vyqlly.rb extconf.rb
checking for ffi_call() in -lffi... yes
checking for ffi_closure_alloc()... yes
checking for shlwapi.h... no
checking for rb_thread_call_without_gvl()... yes
checking for ruby_native_thread_p()... yes
checking for ruby_thread_has_gvl_p()... yes
checking for ffi_prep_cif_var()... yes
checking for ffi_raw_call()... yes
checking for ffi_prep_raw_closure()... yes
creating extconf.h
creating Makefile
current directory: /Users/inouehiroki/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/ffi-1.11.1/ext/ffi_c
make "DESTDIR=" clean
current directory: /Users/inouehiroki/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/ffi-1.11.1/ext/ffi_c
make "DESTDIR="
compiling AbstractMemory.c
compiling ArrayType.c
compiling Buffer.c
compiling Call.c
compiling ClosurePool.c
compiling DynamicLibrary.c
compiling Function.c
Function.c:867:17: error: implicit declaration of function 'ffi_prep_closure' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
ffiStatus = ffi_prep_closure(code, &fnInfo->ffi_cif, callback_invoke, closure);
^
1 error generated.
make: *** [Function.o] Error 1
make failed, exit code 2
Gem files will remain installed in /Users/inouehiroki/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/ffi-1.11.1 for inspection.
Results logged to /Users/inouehiroki/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/extensions/-darwin-20/2.6.0/ffi-1.11.1/gem_make.out
Function.c:867:17: error: implicit declaration of function 'ffi_prep_closure' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
ffiStatus = ffi_prep_closure(code, &fnInfo->ffi_cif, callback_invoke, closure);
このエラーの対策
export PKG_CONFIG_PATH="/opt/homebrew/opt/libffi/lib/pkgconfig"
参考：
