Just removed double __ from the inclusion guard names.

dlib/lsh/projection_hash_abstract.h

 // Copyright (C) 2011  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#undef DLIB_PROJECTION_HASh_ABSTRACT_H__
-#ifdef DLIB_PROJECTION_HASh_ABSTRACT_H__
+#undef DLIB_PROJECTION_HASh_ABSTRACT_Hh_
+#ifdef DLIB_PROJECTION_HASh_ABSTRACT_Hh_
 
 #include "../matrix.h"
 
@@ -115,5 +115,5 @@ namespace dlib
 
 }
 
-#endif // DLIB_PROJECTION_HASh_ABSTRACT_H__
+#endif // DLIB_PROJECTION_HASh_ABSTRACT_Hh_
 

dlib/manifold_regularization/linear_manifold_regularizer.h

 // Copyright (C) 2010  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_LINEAR_MANIFOLD_ReGULARIZER_H__
-#define DLIB_LINEAR_MANIFOLD_ReGULARIZER_H__
+#ifndef DLIB_LINEAR_MANIFOLD_ReGULARIZER_Hh_
+#define DLIB_LINEAR_MANIFOLD_ReGULARIZER_Hh_
 
 #include "linear_manifold_regularizer_abstract.h"
 #include <limits>
@@ -324,5 +324,5 @@ namespace dlib
 
 // ----------------------------------------------------------------------------------------
 
-#endif // DLIB_LINEAR_MANIFOLD_ReGULARIZER_H__
+#endif // DLIB_LINEAR_MANIFOLD_ReGULARIZER_Hh_
 

dlib/manifold_regularization/linear_manifold_regularizer_abstract.h

 // Copyright (C) 2010  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#undef DLIB_LINEAR_MANIFOLD_ReGULARIZER_ABSTRACT_H__
-#ifdef DLIB_LINEAR_MANIFOLD_ReGULARIZER_ABSTRACT_H__
+#undef DLIB_LINEAR_MANIFOLD_ReGULARIZER_ABSTRACT_Hh_
+#ifdef DLIB_LINEAR_MANIFOLD_ReGULARIZER_ABSTRACT_Hh_
 
 #include <limits>
 #include <vector>
@@ -132,6 +132,6 @@ namespace dlib
 
 // ----------------------------------------------------------------------------------------
 
-#endif // DLIB_LINEAR_MANIFOLD_ReGULARIZER_ABSTRACT_H__
+#endif // DLIB_LINEAR_MANIFOLD_ReGULARIZER_ABSTRACT_Hh_
 
 

dlib/matrix/cblas_constants.h

 // Copyright (C) 2010  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_CBLAS_CONSTAnTS_H__
-#define DLIB_CBLAS_CONSTAnTS_H__
+#ifndef DLIB_CBLAS_CONSTAnTS_Hh_
+#define DLIB_CBLAS_CONSTAnTS_Hh_
 
 namespace dlib
 {
@@ -16,5 +16,5 @@ namespace dlib
     }
 }
 
-#endif // DLIB_CBLAS_CONSTAnTS_H__
+#endif // DLIB_CBLAS_CONSTAnTS_Hh_
 

dlib/matrix/lapack/gees.h

 // Copyright (C) 2010  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_LAPACk_ES_H__
-#define DLIB_LAPACk_ES_H__
+#ifndef DLIB_LAPACk_ES_Hh_
+#define DLIB_LAPACk_ES_Hh_
 
 #include "fortran_id.h"
 #include "../matrix.h"
@@ -260,5 +260,5 @@ namespace dlib
 
 // ----------------------------------------------------------------------------------------
 
-#endif // DLIB_LAPACk_ES_H__
+#endif // DLIB_LAPACk_ES_Hh_
 

dlib/matrix/lapack/geev.h

 // Copyright (C) 2010  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_LAPACk_GEEV_H__
-#define DLIB_LAPACk_GEEV_H__
+#ifndef DLIB_LAPACk_GEEV_Hh_
+#define DLIB_LAPACk_GEEV_Hh_
 
 #include "fortran_id.h"
 #include "../matrix.h"
@@ -229,6 +229,6 @@ namespace dlib
 
 // ----------------------------------------------------------------------------------------
 
-#endif // DLIB_LAPACk_GEEV_H__
+#endif // DLIB_LAPACk_GEEV_Hh_
 
 

dlib/matrix/lapack/geqrf.h

 // Copyright (C) 2010  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_LAPACk_GEQRF_H__
-#define DLIB_LAPACk_GEQRF_H__
+#ifndef DLIB_LAPACk_GEQRF_Hh_
+#define DLIB_LAPACk_GEQRF_Hh_
 
 #include "fortran_id.h"
 #include "../matrix.h"
@@ -162,7 +162,7 @@ namespace dlib
 
 // ----------------------------------------------------------------------------------------
 
-#endif // DLIB_LAPACk_GEQRF_H__
+#endif // DLIB_LAPACk_GEQRF_Hh_
 
 
 

dlib/matrix/lapack/gesdd.h

 // Copyright (C) 2010  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_LAPACk_SDD_H__
-#define DLIB_LAPACk_SDD_H__
+#ifndef DLIB_LAPACk_SDD_Hh_
+#define DLIB_LAPACk_SDD_Hh_
 
 #include "fortran_id.h"
 #include "../matrix.h"
@@ -359,6 +359,6 @@ namespace dlib
 
 // ----------------------------------------------------------------------------------------
 
-#endif // DLIB_LAPACk_SDD_H__
+#endif // DLIB_LAPACk_SDD_Hh_
 
 

dlib/matrix/lapack/gesvd.h

 // Copyright (C) 2010  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_LAPACk_SVD_H__
-#define DLIB_LAPACk_SVD_H__
+#ifndef DLIB_LAPACk_SVD_Hh_
+#define DLIB_LAPACk_SVD_Hh_
 
 #include "fortran_id.h"
 #include "../matrix.h"
@@ -319,5 +319,5 @@ namespace dlib
 
 // ----------------------------------------------------------------------------------------
 
-#endif // DLIB_LAPACk_SVD_H__
+#endif // DLIB_LAPACk_SVD_Hh_
 

dlib/matrix/lapack/getrf.h

 // Copyright (C) 2010  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_LAPACk_GETRF_H__
-#define DLIB_LAPACk_GETRF_H__
+#ifndef DLIB_LAPACk_GETRF_Hh_
+#define DLIB_LAPACk_GETRF_Hh_
 
 #include "fortran_id.h"
 #include "../matrix.h"
@@ -128,5 +128,5 @@ namespace dlib
 
 // ----------------------------------------------------------------------------------------
 
-#endif // DLIB_LAPACk_GETRF_H__
+#endif // DLIB_LAPACk_GETRF_Hh_
 

dlib/matrix/lapack/ormqr.h

 // Copyright (C) 2010  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_LAPACk_ORMQR_H__
-#define DLIB_LAPACk_ORMQR_H__
+#ifndef DLIB_LAPACk_ORMQR_Hh_
+#define DLIB_LAPACk_ORMQR_Hh_
 
 #include "fortran_id.h"
 #include "../matrix.h"
@@ -220,5 +220,5 @@ namespace dlib
 
 // ----------------------------------------------------------------------------------------
 
-#endif // DLIB_LAPACk_ORMQR_H__
+#endif // DLIB_LAPACk_ORMQR_Hh_
 

dlib/matrix/lapack/potrf.h

 // Copyright (C) 2010  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_LAPACk_POTRF_H__
-#define DLIB_LAPACk_POTRF_H__
+#ifndef DLIB_LAPACk_POTRF_Hh_
+#define DLIB_LAPACk_POTRF_Hh_
 
 #include "fortran_id.h"
 #include "../matrix.h"
@@ -169,6 +169,6 @@ namespace dlib
 
 // ----------------------------------------------------------------------------------------
 
-#endif // DLIB_LAPACk_POTRF_H__
+#endif // DLIB_LAPACk_POTRF_Hh_
 
 

dlib/matrix/lapack/syev.h

 // Copyright (C) 2010  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_LAPACk_EV_H__
-#define DLIB_LAPACk_EV_H__
+#ifndef DLIB_LAPACk_EV_Hh_
+#define DLIB_LAPACk_EV_Hh_
 
 #include "fortran_id.h"
 #include "../matrix.h"
@@ -211,7 +211,7 @@ namespace dlib
 
 // ----------------------------------------------------------------------------------------
 
-#endif // DLIB_LAPACk_EV_H__
+#endif // DLIB_LAPACk_EV_Hh_
 
 
 

dlib/matrix/lapack/syevr.h

 // Copyright (C) 2010  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_LAPACk_EVR_H__
-#define DLIB_LAPACk_EVR_H__
+#ifndef DLIB_LAPACk_EVR_Hh_
+#define DLIB_LAPACk_EVR_Hh_
 
 #include "fortran_id.h"
 #include "../matrix.h"
@@ -439,7 +439,7 @@ namespace dlib
 
 // ----------------------------------------------------------------------------------------
 
-#endif // DLIB_LAPACk_EVR_H__
+#endif // DLIB_LAPACk_EVR_Hh_
 
 
 

dlib/matrix/matrix_conv.h

 // Copyright (C) 2011  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_MATRIx_CONV_H__
-#define DLIB_MATRIx_CONV_H__
+#ifndef DLIB_MATRIx_CONV_Hh_
+#define DLIB_MATRIx_CONV_Hh_
 
 #include "matrix_conv_abstract.h"
 #include "matrix.h"
@@ -304,5 +304,5 @@ namespace dlib
 
 }
 
-#endif // DLIB_MATRIx_CONV_H__
+#endif // DLIB_MATRIx_CONV_Hh_
 

dlib/matrix/matrix_conv_abstract.h

 // Copyright (C) 2011  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#undef DLIB_MATRIx_CONV_ABSTRACT_H__
-#ifdef DLIB_MATRIx_CONV_ABSTRACT_H__
+#undef DLIB_MATRIx_CONV_ABSTRACT_Hh_
+#ifdef DLIB_MATRIx_CONV_ABSTRACT_Hh_
 
 #include "matrix_abstract.h"
 
@@ -136,6 +136,6 @@ namespace dlib
 
 }
 
-#endif // DLIB_MATRIx_CONV_ABSTRACT_H__
+#endif // DLIB_MATRIx_CONV_ABSTRACT_Hh_
 
 

dlib/matrix/matrix_fft.h

 // Copyright (C) 2013  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_FFt_H__
-#define DLIB_FFt_H__
+#ifndef DLIB_FFt_Hh_
+#define DLIB_FFt_Hh_
 
 #include "matrix_fft_abstract.h"
 #include "matrix_utilities.h"
@@ -274,5 +274,5 @@ namespace dlib
 
 }
 
-#endif // DLIB_FFt_H__
+#endif // DLIB_FFt_Hh_
 

dlib/matrix/matrix_fft_abstract.h

 // Copyright (C) 2013  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#undef DLIB_FFt_ABSTRACT_H__
-#ifdef DLIB_FFt_ABSTRACT_H__
+#undef DLIB_FFt_ABSTRACT_Hh_
+#ifdef DLIB_FFt_ABSTRACT_Hh_
 
 #include "matrix_abstract.h"
 #include "../algs.h"
@@ -73,5 +73,5 @@ namespace dlib
 
 }
 
-#endif // DLIB_FFt_ABSTRACT_H__
+#endif // DLIB_FFt_ABSTRACT_Hh_
 

dlib/matrix/matrix_generic_image.h

 // Copyright (C) 2014  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_MATRIX_GENERIC_iMAGE_H__
-#define DLIB_MATRIX_GENERIC_iMAGE_H__
+#ifndef DLIB_MATRIX_GENERIC_iMAGE_Hh_
+#define DLIB_MATRIX_GENERIC_iMAGE_Hh_
 
 #include "matrix.h"
 #include "../image_processing/generic_image.h"
@@ -94,6 +94,6 @@ namespace dlib
 
 }
 
-#endif // DLIB_MATRIX_GENERIC_iMAGE_H__
+#endif // DLIB_MATRIX_GENERIC_iMAGE_Hh_
 
 

dlib/matrix/matrix_mat.h

 // Copyright (C) 2006  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_MATRIx_MAT_H__
-#define DLIB_MATRIx_MAT_H__
+#ifndef DLIB_MATRIx_MAT_Hh_
+#define DLIB_MATRIx_MAT_Hh_
 
 #include "matrix_mat_abstract.h"
 #include "../stl_checked.h"
@@ -612,6 +612,6 @@ namespace dlib
 
 }
 
-#endif // DLIB_MATRIx_MAT_H__
+#endif // DLIB_MATRIx_MAT_Hh_