sass --watch crash log

~ > cd ~/Sites/html5-boilerplate/static/css/
~/Sites/html5-boilerplate/static/css (master) > sass --watch style.sass
>>> Sass is watching for changes. Press Ctrl-C to stop.
Errno::EACCES: Permission denied - /Library/Ruby/Gems/2.0.0/extensions/universal-darwin-13/2.0.0/sqlite3-1.3.8/gem_make.out
  Use --trace for backtrace.
~/Sites/html5-boilerplate/static/css (master) > sudo !!
sudo sass --watch style.sass
>>> Sass is watching for changes. Press Ctrl-C to stop.
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

    /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb
checking for sqlite3.h... yes
checking for sqlite3_libversion_number() in -lsqlite3... yes
checking for rb_proc_arity()... yes
checking for sqlite3_initialize()... yes
checking for sqlite3_backup_init()... yes
checking for sqlite3_column_database_name()... no
checking for sqlite3_enable_load_extension()... no
checking for sqlite3_load_extension()... no
checking for sqlite3_open_v2()... yes
checking for sqlite3_prepare_v2()... yes
checking for sqlite3_int64 in sqlite3.h... yes
checking for sqlite3_uint64 in sqlite3.h... yes
creating Makefile

make "DESTDIR=" clean

make "DESTDIR="
compiling backup.c
compiling database.c
database.c:300:1: warning: control may reach end of non-void function [-Wreturn-type]
}
^
1 warning generated.
compiling exception.c
compiling sqlite3.c
compiling statement.c
linking shared-object sqlite3/sqlite3_native.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: *** [sqlite3_native.bundle] Error 1

make failed, exit code 2

Gem files will remain installed in /Library/Ruby/Gems/2.0.0/gems/sqlite3-1.3.8 for inspection.
Results logged to /Library/Ruby/Gems/2.0.0/extensions/universal-darwin-13/2.0.0/sqlite3-1.3.8/gem_make.out
  Use --trace for backtrace.
~/Sites/html5-boilerplate/static/css (master) >