diff options
Diffstat (limited to 'ext/json/ext/parser/extconf.rb')
| -rw-r--r-- | ext/json/ext/parser/extconf.rb | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/ext/json/ext/parser/extconf.rb b/ext/json/ext/parser/extconf.rb index f7360d4..f832b56 100644 --- a/ext/json/ext/parser/extconf.rb +++ b/ext/json/ext/parser/extconf.rb @@ -3,4 +3,29 @@ require 'mkmf' have_func("rb_enc_raise", "ruby.h") +# checking if String#-@ (str_uminus) dedupes... ' +begin + a = -(%w(t e s t).join) + b = -(%w(t e s t).join) + if a.equal?(b) + $CFLAGS << ' -DSTR_UMINUS_DEDUPE=1 ' + else + $CFLAGS << ' -DSTR_UMINUS_DEDUPE=0 ' + end +rescue NoMethodError + $CFLAGS << ' -DSTR_UMINUS_DEDUPE=0 ' +end + +# checking if String#-@ (str_uminus) directly interns frozen strings... ' +begin + s = rand.to_s.freeze + if (-s).equal?(s) && (-s.dup).equal?(s) + $CFLAGS << ' -DSTR_UMINUS_DEDUPE_FROZEN=1 ' + else + $CFLAGS << ' -DSTR_UMINUS_DEDUPE_FROZEN=0 ' + end +rescue NoMethodError + $CFLAGS << ' -DSTR_UMINUS_DEDUPE_FROZEN=0 ' +end + create_makefile 'json/ext/parser' |