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-rw-r--r--Build/source/utils/asymptote/stack.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/Build/source/utils/asymptote/stack.cc b/Build/source/utils/asymptote/stack.cc
index 99a71e79348..acfd05c1493 100644
--- a/Build/source/utils/asymptote/stack.cc
+++ b/Build/source/utils/asymptote/stack.cc
@@ -279,7 +279,7 @@ void stack::runWithOrWithoutClosure(lambda *l, vars_t vars, vars_t parent)
# define FRAMEVAR(frame,n) (frame[(n)])
#else
// Link to the variables, be they in a closure or on the stack.
- mem::vector<item> *varlink;
+ mem::vector<item> *varlink=NULL;
# define SET_VARLINK assert(vars); varlink = &vars->vars
# define VAR(n) ( (*varlink)[(n) + frameStart] )