Update to boost 1.72

[lyx.git] / 3rdparty / boost / libs / regex / src / regex.cpp

diff --git a/3rdparty/boost/libs/regex/src/regex.cpp b/3rdparty/boost/libs/regex/src/regex.cpp
index e9e9762748e4dfb68806d58970be673eff9d9cea..5a8bbdc04e5629c77e7f424e2e40e586372b4547 100644 (file)
--- a/3rdparty/boost/libs/regex/src/regex.cpp
+++ b/3rdparty/boost/libs/regex/src/regex.cpp
@@ -28,7 +28,9 @@
 #  include <malloc.h>
 #endif
 #ifdef BOOST_REGEX_HAS_MS_STACK_GUARD
-#define WIN32_LEAN_AND_MEAN
+#ifndef WIN32_LEAN_AND_MEAN
+#  define WIN32_LEAN_AND_MEAN
+#endif
 #ifndef NOMINMAX
 #  define NOMINMAX
 #endif