From 117fc8e72dc8500a4ab1f9ff0ef3a0a9ecc46786 Mon Sep 17 00:00:00 2001
From: Hiroshi SHIBATA <hsbt@ruby-lang.org>
Date: Fri, 21 Apr 2023 13:22:10 +0900
Subject: [PATCH] [ruby/syslog] Expose Syslog::VERSION

https://github.com/ruby/syslog/commit/ff5d72fcb9
---
 ext/syslog/syslog.c       |  4 ++++
 ext/syslog/syslog.gemspec | 13 ++++++++++++-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/ext/syslog/syslog.c b/ext/syslog/syslog.c
index 8f3674aa8d..6a97c15811 100644
--- a/ext/syslog/syslog.c
+++ b/ext/syslog/syslog.c
@@ -12,6 +12,8 @@
 #include "ruby/util.h"
 #include <syslog.h>
 
+#define SYSLOG_VERSION "0.1.1"
+
 /* Syslog class */
 static VALUE mSyslog;
 /*
@@ -574,6 +576,8 @@ void Init_syslog(void)
 
     /* Syslog macros */
 
+    rb_define_const(mSyslog, "VERSION", rb_str_new_cstr(SYSLOG_VERSION));
+
     rb_define_method(mSyslogMacros, "LOG_MASK", mSyslogMacros_LOG_MASK, 1);
     rb_define_method(mSyslogMacros, "LOG_UPTO", mSyslogMacros_LOG_UPTO, 1);
     rb_define_singleton_method(mSyslogMacros, "included", mSyslogMacros_included, 1);
diff --git a/ext/syslog/syslog.gemspec b/ext/syslog/syslog.gemspec
index 6aa2e9570d..788fd2da95 100644
--- a/ext/syslog/syslog.gemspec
+++ b/ext/syslog/syslog.gemspec
@@ -1,6 +1,17 @@
+
+source_version = ["", "ext/syslog/"].find do |dir|
+  begin
+    break File.open(File.join(__dir__, "#{dir}syslog.c")) {|f|
+      f.gets("\n#define SYSLOG_VERSION ")
+      f.gets[/\s*"(.+)"/, 1]
+    }
+  rescue Errno::ENOENT
+  end
+end
+
 Gem::Specification.new do |spec|
   spec.name          = "syslog"
-  spec.version       = "0.1.1"
+  spec.version       = source_version
   spec.authors       = ["Akinori MUSHA"]
   spec.email         = ["knu@idaemons.org"]