diff --git a/dlib/dir_nav/dir_nav_extensions.cpp b/dlib/dir_nav/dir_nav_extensions.cpp
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diff --git a/dlib/dir_nav/dir_nav_extensions.h b/dlib/dir_nav/dir_nav_extensions.h
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diff --git a/dlib/dir_nav/dir_nav_extensions_abstract.h b/dlib/dir_nav/dir_nav_extensions_abstract.h
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diff --git a/dlib/image_keypoint.h b/dlib/image_keypoint.h
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diff --git a/dlib/string/cassert b/dlib/string/cassert
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diff --git a/dlib/string/iomanip b/dlib/string/iomanip
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diff --git a/dlib/string/iosfwd b/dlib/string/iosfwd
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diff --git a/dlib/string/iostream b/dlib/string/iostream
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diff --git a/dlib/string/locale b/dlib/string/locale
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diff --git a/dlib/test/kcentroid.cpp b/dlib/test/kcentroid.cpp
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