X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-core%2Ftrunk%2Fconfig%2Fsubs.m4;h=e1fc1e6e688266f31676652ad51991e5ff2d0db2;hb=bf9a7016492069205a1e17b641f886c659f6b594;hp=ccce797c4d1ec374ea90dbd24efe0099fee403f8;hpb=60a0e0ea3b2f1edf2cd6d9133d0a5985f5dbaeaa;p=synfig.git

diff --git a/synfig-core/trunk/config/subs.m4 b/synfig-core/trunk/config/subs.m4
index ccce797..e1fc1e6 100644
--- a/synfig-core/trunk/config/subs.m4
+++ b/synfig-core/trunk/config/subs.m4
@@ -96,14 +96,15 @@ AC_DEFUN([AC_ARG_DEBUG],
 
 
 
+## Optimisation level 2 in g++ 4.1 or g++ 4.2 breaks composition loading in the vector parsing function in loadcanvas.cpp (1509627)
 AC_DEFUN([AC_ARG_OPTIMIZATION],
 [
 	AC_MSG_CHECKING([for optimization flags])
 
-	AC_ARG_ENABLE(optimization,[  --enable-optimization=[[0,1,2,3,4]] Select optimization level (default=2)],[
+	AC_ARG_ENABLE(optimization,[  --enable-optimization=[[0,1,2,3,4]] Select optimization level (default=1)],[
 		optimization=$enableval
 	],[
-		optimization="2"
+		optimization="1"
 	])
 	optimization_flags=''
 	case "$optimization" in