* ext/gdbm/gdbm.c (fgdbm_initialize): use GDBM_CLOEXEC if available.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@33709 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Fri Nov 11 21:13:30 2011  Tanaka Akira  <akr@fsij.org>
+
+	* ext/gdbm/gdbm.c (fgdbm_initialize): use GDBM_CLOEXEC if available.
+
 Fri Nov 11 21:00:05 2011  Tanaka Akira  <akr@fsij.org>
 
 	* ext/dbm/extconf.rb: fix dbm_pagfno and dbm_dirfno detection with

ext/gdbm/gdbm.c

@@ -210,6 +210,11 @@ fgdbm_initialize(int argc, VALUE *argv, VALUE obj)
 
     SafeStringValue(file);
 
+#ifdef GDBM_CLOEXEC
+    /* GDBM_CLOEXEC is implemented in gdbm 1.9.90 (development version after gdbm-1.9.1). */
+    flags |= GDBM_CLOEXEC;
+#endif
+
     if (flags & RUBY_GDBM_RW_BIT) {
         flags &= ~RUBY_GDBM_RW_BIT;
         dbm = gdbm_open(RSTRING_PTR(file), MY_BLOCK_SIZE,