From f7b229ce873ff71e2b48e855075153dc1026750d Mon Sep 17 00:00:00 2001
From: Michael Cronenworth <mike@cchtml.com>
Date: Mon, 7 Aug 2017 14:37:28 -0500
Subject: [PATCH] Follow PEP-384 when finding and opening python3 library

Instead of maintaining a list of all Python versions the Python 3
standard defines that there MUST be a stable ABI and we can always
rely on a "python3.dll" or a "libpython3.so" existing.

This also fixes library loading on Linux distributions that use
SO versioned libraries.
---
 hardware/plugins/DelayedLink.h | 28 ++--------------------------
 1 file changed, 2 insertions(+), 26 deletions(-)

diff --git a/hardware/plugins/DelayedLink.h b/hardware/plugins/DelayedLink.h
index 25c83f034..ecf19da09 100644
--- a/hardware/plugins/DelayedLink.h
+++ b/hardware/plugins/DelayedLink.h
@@ -163,12 +163,7 @@
 				if (!shared_lib_) shared_lib_ = LoadLibrary("python34.dll");
 #	endif
 #else
-				if (!shared_lib_) FindLibrary("python3.9", true);
-				if (!shared_lib_) FindLibrary("python3.8", true);
-				if (!shared_lib_) FindLibrary("python3.7", true);
-				if (!shared_lib_) FindLibrary("python3.6", true);
-				if (!shared_lib_) FindLibrary("python3.5", true);
-				if (!shared_lib_) FindLibrary("python3.4", true);
+				if (!shared_lib_) FindLibrary("python3", true);
 #ifdef __FreeBSD__
 				if (!shared_lib_) FindLibrary("python3.7m", true);
 				if (!shared_lib_) FindLibrary("python3.6m", true);
@@ -271,24 +263,12 @@
 						library = "lib" + sLibrary + ".so";
 						shared_lib_ = dlopen(library.c_str(), RTLD_LAZY | RTLD_GLOBAL);
 					}
-					// look in directories covered by ldconfig but 'm' variant
-					if (!shared_lib_)
-					{
-						library = "lib" + sLibrary + "m.so";
-						shared_lib_ = dlopen(library.c_str(), RTLD_LAZY | RTLD_GLOBAL);
-					}
 					// look in /usr/lib directories
 					if (!shared_lib_)
 					{
 						library = "/usr/lib/" + sLibrary + "/";
 						FindLibrary(library, false);
 					}
-					// look in /usr/lib directories but 'm' variant
-					if (!shared_lib_)
-					{
-						library = "/usr/lib/" + sLibrary + "m/";
-						FindLibrary(library, false);
-					}
 					// look in /usr/local/lib directory (handles build from source)
 					if (!shared_lib_)
 					{
@@ -296,12 +276,6 @@
 						shared_lib_ = dlopen(library.c_str(), RTLD_LAZY | RTLD_GLOBAL);
 
 					}
-					// look in /usr/local/lib directory (handles build from source) but 'm' variant
-					if (!shared_lib_)
-					{
-						library = "/usr/local/lib/lib" + sLibrary + "m.so";
-						shared_lib_ = dlopen(library.c_str(), RTLD_LAZY | RTLD_GLOBAL);
-					}
 					// MacOS
 					// look for .dylib in /usr/local/lib
 					if (!shared_lib_)