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-rw-r--r--src/tools/msvc/vcregress.pl2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/tools/msvc/vcregress.pl b/src/tools/msvc/vcregress.pl
index d73775c7430..bfa8a3dc909 100644
--- a/src/tools/msvc/vcregress.pl
+++ b/src/tools/msvc/vcregress.pl
@@ -410,7 +410,7 @@ sub fetchRegressOpts
my @opts;
$m =~ s{\\\r?\n}{}g;
- if ($m =~ /^\s*REGRESS_OPTS\s*=(.*)/m)
+ if ($m =~ /^\s*REGRESS_OPTS\s*\+?=(.*)/m)
{
# Substitute known Makefile variables, then ignore options that retain
# an unhandled variable reference. Ignore anything that isn't an