From 38db1eecbbb048fcb9edcc4302ea3e4ea8e4e508 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Sat, 10 Aug 2024 13:30:42 +0100
Subject: Reduce the amount of unnecessary rebuilds on shader source changes

---
 glsl.jam | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'glsl.jam')

diff --git a/glsl.jam b/glsl.jam
index eeeb340..20ef180 100644
--- a/glsl.jam
+++ b/glsl.jam
@@ -37,6 +37,8 @@ actions glsl.embed
 
 rule glsl.embed ( targets * : sources * : properties * )
 {
-	DEPENDS $(targets) : lib/embed-glsl.h.m4 lib/embed-glsl.cpp.m4 ;
+	NOUPDATE $(targets[2]) ;
+	DEPENDS $(targets[2]) : lib/embed-glsl.h.m4 ;
+	DEPENDS $(targets[1]) $(targets[3]) : lib/embed-glsl.cpp.m4 ;
 	OPTIONS on $(targets) = [ type.type $(sources) ] ;
 }
-- 
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