* configure.in (RUBY_SETJMP, RUBY_LONGJMP, RUBY_JMP_BUF): prefers

  __builtin_setjmp, _setjmp over setjmp and sigsetjmp.
  [ruby-core:16023], [ruby-core:16086]

* configure.in (--with-setjmp-type): new option to override the
  default rule in the above.

* eval.c (ruby_setjmp, ruby_longjmp), gc.c (rb_setjmp),
  node.h (rb_jmpbuf_t): use RUBY_SETJMP, RUBY_LONGJMP and
  RUBY_JMP_BUF.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@15870 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 5 insertions, 8 deletions

diff --git a/eval.c b/eval.c
index 8b78640d90..ee70966a10 100644
--- a/eval.c
+++ b/eval.c
@@ -193,14 +193,11 @@ static int volatile freebsd_clear_carry_flag = 0;
      POST_GETCONTEXT, \
      (j)->status)
 #else
-#  if !defined(setjmp) && defined(HAVE__SETJMP) && !defined(sigsetjmp) && !defined(HAVE_SIGSETJMP)
-#    define ruby_setjmp(just_before_setjmp, env) \
-       ((just_before_setjmp), _setjmp(env))
-#    define ruby_longjmp(env,val) _longjmp(env,val)
-#  else
-#    define ruby_setjmp(just_before_setjmp, env) \
-       ((just_before_setjmp), setjmp(env))
-#    define ruby_longjmp(env,val) longjmp(env,val)
+#  define ruby_setjmp(just_before_setjmp, env) \
+     ((just_before_setjmp), RUBY_SETJMP(env))
+#  define ruby_longjmp(env,val) RUBY_LONGJMP(env,val)
+#  ifdef __CYGWIN__
+int _setjmp(), _longjmp();
 #  endif
 #endif