* process.c (proc_exec_v, rb_proc_exec): preserve errno.

git-svn-id: http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_8_6@13150 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

3 files changed, 10 insertions, 3 deletions

diff --git a/ChangeLog b/ChangeLog
index dcf72fef9..e28071022 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Wed Aug 22 09:38:43 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* process.c (proc_exec_v, rb_proc_exec): preserve errno.
+
 Wed Aug 22 09:00:23 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* eval.c (ruby_cleanup): return EXIT_FAILURE if any exceptions occured
diff --git a/process.c b/process.c
index 87fed73c5..624aeaefc 100644
--- a/process.c
+++ b/process.c
@@ -117,6 +117,9 @@ static VALUE S_Tms;
 #endif
 #endif
 
+#define preserving_errno(stmts) \
+	do {int saved_errno = errno; stmts; errno = saved_errno;} while (0)
+
 
 /*
  *  call-seq:
@@ -990,7 +993,7 @@ proc_exec_v(argv, prog)
     before_exec();
     rb_thread_cancel_timer();
     execv(prog, argv);
-    after_exec();
+    preserving_errno(after_exec());
     return -1;
 }
 
@@ -1059,7 +1062,7 @@ rb_proc_exec(str)
 #else
 	    before_exec();
 	    execl("/bin/sh", "sh", "-c", str, (char *)NULL);
-	    after_exec();
+	    preserving_errno(after_exec());
 #endif
 #endif
 	    return -1;
diff --git a/version.h b/version.h
index 19e35f330..4b08ac0a5 100644
--- a/version.h
+++ b/version.h
@@ -2,7 +2,7 @@
 #define RUBY_RELEASE_DATE "2007-08-22"
 #define RUBY_VERSION_CODE 186
 #define RUBY_RELEASE_CODE 20070822
-#define RUBY_PATCHLEVEL 49
+#define RUBY_PATCHLEVEL 50
 
 #define RUBY_VERSION_MAJOR 1
 #define RUBY_VERSION_MINOR 8