debug environment variable refined.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@12651 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 10 insertions, 0 deletions

diff --git a/signal.c b/signal.c
index e495f6211f..1db4dbb32a 100644
--- a/signal.c
+++ b/signal.c
@@ -993,6 +993,10 @@ init_sigchld(int sig)
 #endif
 }
 
+#ifdef RUBY_DEBUG_ENV
+int enable_coredump = 0;
+#endif
+
 /*
  * Many operating systems allow signals to be sent to running
  * processes. Some signals have a defined effect on the process, while
@@ -1065,12 +1069,18 @@ Init_signal(void)
     install_sighandler(SIGUSR2, sighandler);
 #endif
 
+#ifdef RUBY_DEBUG_ENV
+    if (!enable_coredump) {
+#endif
 #ifdef SIGBUS
     install_sighandler(SIGBUS, sigbus);
 #endif
 #ifdef SIGSEGV
     install_sighandler(SIGSEGV, sigsegv);
 #endif
+#ifdef RUBY_DEBUG_ENV
+    }
+#endif
 #ifdef SIGPIPE
     install_sighandler(SIGPIPE, sigpipe);
 #endif