Just removed double __ from the inclusion guard names.

dlib/simd/simd8i.h

 // Copyright (C) 2013  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_sIMD8I_H__
-#define DLIB_sIMD8I_H__
+#ifndef DLIB_sIMD8I_Hh_
+#define DLIB_sIMD8I_Hh_
 
 #include "simd_check.h"
 #include "../uintn.h"
@@ -334,6 +334,6 @@ namespace dlib
 
 }
 
-#endif // DLIB_sIMD8I_H__
+#endif // DLIB_sIMD8I_Hh_
 
 

dlib/simd/simd_check.h

 // Copyright (C) 2013  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_SIMd_CHECK_H__
-#define DLIB_SIMd_CHECK_H__
+#ifndef DLIB_SIMd_CHECK_Hh_
+#define DLIB_SIMd_CHECK_Hh_
 
 //#define DLIB_DO_NOT_USE_SIMD
 
@@ -58,6 +58,6 @@
     #include <avx2intrin.h>
 #endif
 
-#endif // DLIB_SIMd_CHECK_H__
+#endif // DLIB_SIMd_CHECK_Hh_
 
 

dlib/sliding_buffer/circular_buffer.h

 // Copyright (C) 2012  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_CIRCULAR_BuFFER_H__
-#define DLIB_CIRCULAR_BuFFER_H__
+#ifndef DLIB_CIRCULAR_BuFFER_Hh_
+#define DLIB_CIRCULAR_BuFFER_Hh_
 
 #include "circular_buffer_abstract.h"
 #include <vector>
@@ -227,5 +227,5 @@ namespace dlib
 
 }
 
-#endif // DLIB_CIRCULAR_BuFFER_H__
+#endif // DLIB_CIRCULAR_BuFFER_Hh_
 

dlib/sliding_buffer/circular_buffer_abstract.h

 // Copyright (C) 2012  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#undef DLIB_CIRCULAR_BuFFER_ABSTRACT_H__
-#ifdef DLIB_CIRCULAR_BuFFER_ABSTRACT_H__
+#undef DLIB_CIRCULAR_BuFFER_ABSTRACT_Hh_
+#ifdef DLIB_CIRCULAR_BuFFER_ABSTRACT_Hh_
 
 #include "../algs.h"
 #include "../serialize.h"
@@ -243,6 +243,6 @@ namespace dlib
 
 }
 
-#endif // DLIB_CIRCULAR_BuFFER_ABSTRACT_H__
+#endif // DLIB_CIRCULAR_BuFFER_ABSTRACT_Hh_
 
 

dlib/sockstreambuf.h

 // Copyright (C) 2003  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_SOCKSTREAMBUf_H___
-#define DLIB_SOCKSTREAMBUf_H___
+#ifndef DLIB_SOCKSTREAMBUf_H_h_
+#define DLIB_SOCKSTREAMBUf_H_h_
 
 #include "sockstreambuf/sockstreambuf.h"
 #include "sockstreambuf/sockstreambuf_unbuffered.h"
 
 
-#endif // DLIB_SOCKSTREAMBUf_H___
+#endif // DLIB_SOCKSTREAMBUf_H_h_
 

dlib/sockstreambuf/sockstreambuf.h

 // Copyright (C) 2003  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_SOCKStREAMBUF_H__
-#define DLIB_SOCKStREAMBUF_H__
+#ifndef DLIB_SOCKStREAMBUF_Hh_
+#define DLIB_SOCKStREAMBUF_Hh_
 
 #include <iosfwd>
 #include <streambuf>
@@ -168,5 +168,5 @@ namespace dlib
 #include "sockstreambuf.cpp"
 #endif
 
-#endif // DLIB_SOCKStREAMBUF_H__
+#endif // DLIB_SOCKStREAMBUF_Hh_
 

dlib/sockstreambuf/sockstreambuf_unbuffered.h

 // Copyright (C) 2003  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_SOCKSTrEAMBUF_UNBUFFERED_H__
-#define DLIB_SOCKSTrEAMBUF_UNBUFFERED_H__
+#ifndef DLIB_SOCKSTrEAMBUF_UNBUFFERED_Hh_
+#define DLIB_SOCKSTrEAMBUF_UNBUFFERED_Hh_
 
 #include <iosfwd>
 #include <streambuf>
@@ -114,5 +114,5 @@ namespace dlib
 #include "sockstreambuf_unbuffered.cpp"
 #endif
 
-#endif // DLIB_SOCKSTrEAMBUF_UNBUFFERED_H__
+#endif // DLIB_SOCKSTrEAMBUF_UNBUFFERED_Hh_
 

dlib/sparse_vector.h

 // Copyright (C) 2012  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_SPaRSE_VECTOR_H__
-#define DLIB_SPaRSE_VECTOR_H__ 
+#ifndef DLIB_SPaRSE_VECTOR_Hh_
+#define DLIB_SPaRSE_VECTOR_Hh_ 
 
 #include "svm/sparse_vector.h"
 
-#endif // DLIB_SPaRSE_VECTOR_H__ 
+#endif // DLIB_SPaRSE_VECTOR_Hh_ 
 
 

dlib/statistics/average_precision.h

 // Copyright (C) 2013  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_AVERAGE_PREcISION_H__
-#define DLIB_AVERAGE_PREcISION_H__
+#ifndef DLIB_AVERAGE_PREcISION_Hh_
+#define DLIB_AVERAGE_PREcISION_Hh_
 
 #include "average_precision_abstract.h"
 #include <vector>
@@ -62,5 +62,5 @@ namespace dlib
 
 }
 
-#endif // DLIB_AVERAGE_PREcISION_H__
+#endif // DLIB_AVERAGE_PREcISION_Hh_
 

dlib/statistics/average_precision_abstract.h

 // Copyright (C) 2013  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#undef DLIB_AVERAGE_PREcISION_ABSTRACT_H__
-#ifdef DLIB_AVERAGE_PREcISION_ABSTRACT_H__
+#undef DLIB_AVERAGE_PREcISION_ABSTRACT_Hh_
+#ifdef DLIB_AVERAGE_PREcISION_ABSTRACT_Hh_
 
 #include <vector>
 
@@ -62,6 +62,6 @@ namespace dlib
 
 }
 
-#endif // DLIB_AVERAGE_PREcISION_ABSTRACT_H__
+#endif // DLIB_AVERAGE_PREcISION_ABSTRACT_Hh_
 
 

dlib/statistics/cca.h

 // Copyright (C) 2013  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_CCA_h__
-#define DLIB_CCA_h__
+#ifndef DLIB_CCA_hh_
+#define DLIB_CCA_hh_
 
 #include "cca_abstract.h"
 #include "../algs.h"
@@ -181,6 +181,6 @@ namespace dlib
 
 }
 
-#endif // DLIB_CCA_h__
+#endif // DLIB_CCA_hh_
 
 

dlib/statistics/cca_abstract.h

 // Copyright (C) 2013  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#undef DLIB_CCA_AbSTRACT_H__
-#ifdef DLIB_CCA_AbSTRACT_H__
+#undef DLIB_CCA_AbSTRACT_Hh_
+#ifdef DLIB_CCA_AbSTRACT_Hh_
 
 #include "../matrix/matrix_la_abstract.h"
 #include "random_subset_selector_abstract.h"
@@ -186,6 +186,6 @@ namespace dlib
 
 }
 
-#endif // DLIB_CCA_AbSTRACT_H__
+#endif // DLIB_CCA_AbSTRACT_Hh_
 
 

dlib/statistics/image_feature_sampling.h

 // Copyright (C) 2011  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_IMAGE_FEATURE_SaMPLING_H__
-#define DLIB_IMAGE_FEATURE_SaMPLING_H__
+#ifndef DLIB_IMAGE_FEATURE_SaMPLING_Hh_
+#define DLIB_IMAGE_FEATURE_SaMPLING_Hh_
 
 #include "image_feature_sampling_abstract.h"
 #include "../statistics.h"
@@ -78,5 +78,5 @@ namespace dlib
 
 }
 
-#endif // DLIB_IMAGE_FEATURE_SaMPLING_H__
+#endif // DLIB_IMAGE_FEATURE_SaMPLING_Hh_
 

dlib/statistics/image_feature_sampling_abstract.h

 // Copyright (C) 2011  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#undef DLIB_IMAGE_FEATURE_SaMPLING_ABSTRACT_H__
-#ifdef DLIB_IMAGE_FEATURE_SaMPLING_ABSTRACT_H__
+#undef DLIB_IMAGE_FEATURE_SaMPLING_ABSTRACT_Hh_
+#ifdef DLIB_IMAGE_FEATURE_SaMPLING_ABSTRACT_Hh_
 
 #include "random_subset_selector_abstract.h"
 
@@ -40,6 +40,6 @@ namespace dlib
 
 }
 
-#endif // DLIB_IMAGE_FEATURE_SaMPLING_ABSTRACT_H__
+#endif // DLIB_IMAGE_FEATURE_SaMPLING_ABSTRACT_Hh_
 
 

dlib/statistics/sammon.h

 // Copyright (C) 2012  Emanuele Cesena (emanuele.cesena@gmail.com), Davis E. King
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_SAMMoN_H__
-#define DLIB_SAMMoN_H__
+#ifndef DLIB_SAMMoN_Hh_
+#define DLIB_SAMMoN_Hh_
 
 #include "sammon_abstract.h"
 #include "../matrix.h"
@@ -265,5 +265,5 @@ namespace dlib
 
 } // namespace dlib
 
-#endif // DLIB_SAMMoN_H__
+#endif // DLIB_SAMMoN_Hh_
 

dlib/statistics/sammon_abstract.h

 // Copyright (C) 2012  Emanuele Cesena (emanuele.cesena@gmail.com), Davis E. King
 // License: Boost Software License   See LICENSE.txt for the full license.
-#undef DLIB_SAMMoN_ABSTRACT_H__
-#ifdef DLIB_SAMMoN_ABSTRACT_H__
+#undef DLIB_SAMMoN_ABSTRACT_Hh_
+#ifdef DLIB_SAMMoN_ABSTRACT_Hh_
 
 #include "../matrix/matrix_abstract.h"
 #include <vector>
@@ -112,6 +112,6 @@ namespace dlib
 
 } 
 
-#endif // DLIB_SAMMoN_ABSTRACT_H__
+#endif // DLIB_SAMMoN_ABSTRACT_Hh_
 
 

dlib/statistics/vector_normalizer_frobmetric.h

 // Copyright (C) 2013  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_VECTOR_NORMALIZER_FRoBMETRIC_H__
-#define DLIB_VECTOR_NORMALIZER_FRoBMETRIC_H__
+#ifndef DLIB_VECTOR_NORMALIZER_FRoBMETRIC_Hh_
+#define DLIB_VECTOR_NORMALIZER_FRoBMETRIC_Hh_
 
 #include "vector_normalizer_frobmetric_abstract.h"
 #include "../matrix.h"
@@ -563,5 +563,5 @@ namespace dlib
 
 }
 
-#endif // DLIB_VECTOR_NORMALIZER_FRoBMETRIC_H__
+#endif // DLIB_VECTOR_NORMALIZER_FRoBMETRIC_Hh_
 

dlib/statistics/vector_normalizer_frobmetric_abstract.h

 // Copyright (C) 2013  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#undef DLIB_VECTOR_NORMALIZER_FRoBMETRIC_ABSTRACT_H__
-#ifdef DLIB_VECTOR_NORMALIZER_FRoBMETRIC_ABSTRACT_H__
+#undef DLIB_VECTOR_NORMALIZER_FRoBMETRIC_ABSTRACT_Hh_
+#ifdef DLIB_VECTOR_NORMALIZER_FRoBMETRIC_ABSTRACT_Hh_
 
 #include "../matrix.h"
 
@@ -302,5 +302,5 @@ namespace dlib
 
 }
 
-#endif // DLIB_VECTOR_NORMALIZER_FRoBMETRIC_ABSTRACT_H__
+#endif // DLIB_VECTOR_NORMALIZER_FRoBMETRIC_ABSTRACT_Hh_
 

dlib/svm/active_learning.h

 // Copyright (C) 2012  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#ifndef DLIB_ACTIVE_LEARnING_H__
-#define DLIB_ACTIVE_LEARnING_H__
+#ifndef DLIB_ACTIVE_LEARnING_Hh_
+#define DLIB_ACTIVE_LEARnING_Hh_
 
 #include "active_learning_abstract.h"
 
@@ -158,5 +158,5 @@ namespace dlib
 
 }
 
-#endif // DLIB_ACTIVE_LEARnING_H__
+#endif // DLIB_ACTIVE_LEARnING_Hh_
 

dlib/svm/active_learning_abstract.h

 // Copyright (C) 2012  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
-#undef DLIB_ACTIVE_LEARnING_ABSTRACT_H__
-#ifdef DLIB_ACTIVE_LEARnING_ABSTRACT_H__
+#undef DLIB_ACTIVE_LEARnING_ABSTRACT_Hh_
+#ifdef DLIB_ACTIVE_LEARnING_ABSTRACT_Hh_
 
 #include "svm_c_linear_dcd_trainer_abstract.h"
 #include <vector>
@@ -70,6 +70,6 @@ namespace dlib
 
 }
 
-#endif // DLIB_ACTIVE_LEARnING_ABSTRACT_H__
+#endif // DLIB_ACTIVE_LEARnING_ABSTRACT_Hh_