我正在尝试在我的 macbook 上安装断点，但编译失败。完整的输出如下。我是 Mac 新手，不确定我做错了什么。我的 Windows 工作站今晚没有出现任何问题。
谢谢！
Aarons-MacBook-Pro:~ aarongreenlee$ sudo gem install breakpoint
Password:
Building native extensions. This could take a while...
ERROR: Error installing breakpoint:
ERROR: Failed to build gem native extension.
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb
checking for ffi.h... no
checking for ffi.h in /usr/local/include,/usr/include/ffi... yes
checking for ffi_call() in -lffi... yes
checking for ffi_prep_closure()... yes
checking for ffi_raw_call()... no
checking for rb_thread_blocking_region()... yes
checking for rb_thread_call_with_gvl()... yes
checking for rb_thread_call_without_gvl()... yes
checking for ffi_prep_cif_var()... no
creating extconf.h
creating Makefile
make "DESTDIR="
compiling AbstractMemory.c
compiling ArrayType.c
compiling Buffer.c
compiling Call.c
Call.c:303:5: warning: implicit declaration of function 'rb_thread_call_without_gvl' is invalid in C99 [-Wimplicit-function-declaration]
rbffi_thread_blocking_region(call_blocking_function, data, (void *) -1, NULL);
^
./Thread.h:78:39: note: expanded from macro 'rbffi_thread_blocking_region'
# define rbffi_thread_blocking_region rb_thread_call_without_gvl
^
1 warning generated.
compiling ClosurePool.c
compiling DataConverter.c
DataConverter.c:43:1: warning: control may reach end of non-void function [-Wreturn-type]
}
^
1 warning generated.
compiling DynamicLibrary.c
compiling ffi.c
compiling Function.c
Function.c:479:33: warning: incompatible pointer types passing 'VALUE (void *)' to parameter of type 'void *(*)(void *)' [-Wincompatible-pointer-types]
rb_thread_call_with_gvl(callback_with_gvl, &cb);
^~~~~~~~~~~~~~~~~
Function.c:102:46: note: passing argument to parameter 'func' here
extern void *rb_thread_call_with_gvl(void *(*func)(void *), void *data1);
^
Function.c:563:9: warning: implicit declaration of function 'rb_thread_call_without_gvl' is invalid in C99 [-Wimplicit-function-declaration]
rb_thread_call_without_gvl(async_cb_wait, &w, async_cb_stop, &w);
^
Function.c:738:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
3 warnings generated.
compiling FunctionInfo.c
compiling LastError.c
compiling LongDouble.c
compiling MappedType.c
compiling MemoryPointer.c
compiling MethodHandle.c
compiling Platform.c
compiling Pointer.c
compiling Struct.c
compiling StructByReference.c
compiling StructByValue.c
compiling StructLayout.c
compiling Thread.c
compiling Type.c
compiling Types.c
compiling Variadic.c
linking shared-object ffi_c.bundle
clang: error: unknown argument: '-multiply_definedsuppress' [-Wunused-command-line-argument-hard-error-in-future]
clang: note: this will be a hard error (cannot be downgraded to a warning) in the future
make: *** [ffi_c.bundle] Error 1
Gem files will remain installed in /Library/Ruby/Gems/2.0.0/gems/ffi-1.9.3 for inspection.
Results logged to /Library/Ruby/Gems/2.0.0/gems/ffi-1.9.3/ext/ffi_c/gem_make.out
Aarons-MacBook-Pro:~ aarongreenlee$ ls -l
total 38632
-rw-r--r--@ 1 aarongreenlee staff 11 Mar 14 09:22 22650.txt
-rw-r--r--@ 1 aarongreenlee staff 19771836 Mar 18 10:02 22659.mp4
drwxr--r-- 3 aarongreenlee staff 102 Feb 22 10:45 ABBYY
drwxr-xr-x 2 aarongreenlee staff 68 Mar 23 14:12 Applications
drwx------@ 3 aarongreenlee staff 102 Nov 18 22:12 Creative Cloud Files
drwx------+ 13 aarongreenlee staff 442 Mar 25 22:07 Desktop
drwx------+ 27 aarongreenlee staff 918 Mar 21 14:16 Documents
drwx------+ 55 aarongreenlee staff 1870 Mar 19 22:48 Downloads
drwx------@ 31 aarongreenlee staff 1054 Mar 4 09:36 Google Drive
drwx------@ 53 aarongreenlee staff 1802 Jan 6 23:15 Library
drwx------+ 8 aarongreenlee staff 272 Mar 22 22:33 Movies
drwx------+ 4 aarongreenlee staff 136 Nov 14 10:10 Music
drwx------+ 5 aarongreenlee staff 170 Mar 19 18:07 Pictures
drwxr-xr-x+ 5 aarongreenlee staff 170 Nov 1 22:35 Public
drwxr-xr-x 5 root staff 170 Nov 11 18:43 logs
drwxr-xr-x 3 aarongreenlee staff 102 Jan 12 14:50 pkg
drwxr-xr-x 3 aarongreenlee staff 102 Jan 12 14:50 src
drwxr-xr-x 2 root staff 68 Feb 2 12:11 tmp
Aarons-MacBook-Pro:~ aarongreenlee$ cd ~/Documents/Development/golang/src/git.knowboth.com/errorchomp/
Aarons-MacBook-Pro:errorchomp aarongreenlee$ compass compile
LoadError on line ["45"] of /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb: cannot load such file -- breakpoint
Run with --trace to see the full backtrace
Aarons-MacBook-Pro:errorchomp aarongreenlee$ exit
logout