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-rw-r--r--src/corelib/tools/qcryptographichash.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/corelib/tools/qcryptographichash.cpp b/src/corelib/tools/qcryptographichash.cpp
index 55195ecd6b..f4f465a623 100644
--- a/src/corelib/tools/qcryptographichash.cpp
+++ b/src/corelib/tools/qcryptographichash.cpp
@@ -45,6 +45,10 @@
#include "../../3rdparty/sha1/sha1.cpp"
+#if defined(QT_BOOTSTRAPPED) && !defined(QT_CRYPTOGRAPHICHASH_ONLY_SHA1)
+# error "Are you sure you need the other hashing algorithms besides SHA-1?"
+#endif
+
#ifndef QT_CRYPTOGRAPHICHASH_ONLY_SHA1
// qdoc and qmake only need SHA-1
#include "../../3rdparty/md5/md5.h"