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-rw-r--r--Source/cmSystemTools.cxx1
1 files changed, 1 insertions, 0 deletions
diff --git a/Source/cmSystemTools.cxx b/Source/cmSystemTools.cxx
index 64d554b..542d4cc 100644
--- a/Source/cmSystemTools.cxx
+++ b/Source/cmSystemTools.cxx
@@ -19,6 +19,7 @@
#include <errno.h>
#include <time.h>
#include <string.h>
+#include <stdlib.h>
#include <cmsys/RegularExpression.hxx>
#include <cmsys/Directory.hxx>