From 7e17b17efb3c7324f4de6ff641e38e4154d8b4f6 Mon Sep 17 00:00:00 2001
From: Max Anselm <manselm@lutron.com>
Date: Wed, 5 Jun 2024 08:27:10 -0400
Subject: [PATCH] add rbconfig method of determining compiler opts

---
 Gemfile.lock                     | 1 +
 _posts/2012-01-01-embed.markdown | 9 +++++++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/Gemfile.lock b/Gemfile.lock
index 542f4fb..0b20f48 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -59,6 +59,7 @@ GEM
     webrick (1.7.0)
 
 PLATFORMS
+  arm64-darwin-21
   x86_64-darwin-19
   x86_64-linux
 
diff --git a/_posts/2012-01-01-embed.markdown b/_posts/2012-01-01-embed.markdown
index dda9dbb..dc110a9 100644
--- a/_posts/2012-01-01-embed.markdown
+++ b/_posts/2012-01-01-embed.markdown
@@ -14,13 +14,18 @@ On my machine, my minimal compiler options are
 $ gcc foo.c -I/usr/include/ruby-{{ site.rbversion }}.0 -I/usr/include/ruby-{{ site.rbversion }}.0/x86_64-linux -lruby
 {% endhighlight %}
 
-Though, if available, you should really use `pkg-config` to get the appropriate
-options for your distribution:
+If available, you can use `pkg-config` to get the appropriate options for your OS:
 
 {% highlight shell_session %}
 $ pkg-config --cflags --libs ruby-{{ site.rbversion }}
 {% endhighlight %}
 
+Alternatively, you can ask Ruby itself what the compiler options should be:
+
+{% highlight shell_session %}
+$ ruby -rshellwords -e 'puts "-I#{Shellwords.escape RbConfig::CONFIG["rubyhdrdir"]} -I#{Shellwords.escape RbConfig::CONFIG["rubyarchhdrdir"]} -L#{Shellwords.escape RbConfig::CONFIG["libdir"]} -lruby"'
+{% endhighlight %}
+
 ## Startup, Teardown ##
 
 Including the Ruby interpreter in your C/C++ program is pretty simple. Just