From 5b3aa68610238de4e6f13c4bf9ec1745751e820c Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Sun, 6 Nov 2016 11:34:00 +0200
Subject: [PATCH] Add a less-than operator to Version

---
 source/extension.cpp      | 2 +-
 source/extension.h        | 1 +
 source/programbuilder.cpp | 4 ++--
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/source/extension.cpp b/source/extension.cpp
index 78fc7e1c..fda183d2 100644
--- a/source/extension.cpp
+++ b/source/extension.cpp
@@ -105,7 +105,7 @@ bool is_supported(const string &ext)
 
 				/* AMD's uniform buffer objects only work with the core version of
 				shaders. */
-				if(!(get_gl_version()>=Version(2, 0)))
+				if(get_gl_version()<Version(2, 0))
 					extensions.erase("GL_ARB_uniform_buffer_object");
 			}
 		}
diff --git a/source/extension.h b/source/extension.h
index 85b4fc4a..b44d8900 100644
--- a/source/extension.h
+++ b/source/extension.h
@@ -29,6 +29,7 @@ struct Version
 	Version(const std::string &);
 
 	bool operator>=(const Version &) const;
+	bool operator<(const Version &o) const { return !(*this>=o); }
 };
 
 
diff --git a/source/programbuilder.cpp b/source/programbuilder.cpp
index affc4cc3..e4739da0 100644
--- a/source/programbuilder.cpp
+++ b/source/programbuilder.cpp
@@ -782,9 +782,9 @@ ProgramBuilder::StandardFeatures::StandardFeatures():
 	geometry(false)
 {
 	if(get_gl_api()==OPENGL_ES2)
-		legacy = !(get_glsl_version()>=Version(3, 0));
+		legacy = get_glsl_version()<Version(3, 0);
 	else
-		legacy = !(get_glsl_version()>=Version(1, 30));
+		legacy = get_glsl_version()<Version(1, 30);
 }
 
 string ProgramBuilder::StandardFeatures::create_flags() const
-- 
2.43.0