divsufsort included as header-only and removed all linking

.gitmodules

@@ -1,6 +1,3 @@
 [submodule "external/googletest"]
 	path = external/googletest
 	url = https://chromium.googlesource.com/external/googletest
-[submodule "external/libdivsufsort"]
-	path = external/libdivsufsort
-	url = https://github.com/simongog/libdivsufsort.git

examples/CMakeLists.txt

@@ -3,11 +3,8 @@ file(GLOB example_sources ${CMAKE_CURRENT_SOURCE_DIR}/*.cpp)
 
 include_directories(
 	${CMAKE_CURRENT_BINARY_DIR}/../include
-	${CMAKE_CURRENT_BINARY_DIR}/../external/libdivsufsort/include
 )
 
-link_libraries(divsufsort divsufsort64)
-
 foreach(example_source ${example_sources}) 
 	get_filename_component(example_name ${example_source} NAME_WE)	
 	add_executable(${example_name} EXCLUDE_FROM_ALL ${example_name}.cpp)

external/CMakeLists.txt

@@ -3,22 +3,6 @@ if(NOT GIT_FOUND)
     message(WARNING "git not found. Cloning of submodules will not work.")
 endif()
 
-
-## Add libdivsufsort
-set(divsufsort_cmake_file ${CMAKE_CURRENT_LIST_DIR}/libdivsufsort/CMakeLists.txt)
-if(NOT EXISTS ${divsufsort_cmake_file})
-    EXECUTE_PROCESS(COMMAND git submodule update --init external/libdivsufsort
-                    WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/..
-                    OUTPUT_QUIET
-            )
-endif(NOT EXISTS ${divsufsort_cmake_file})
-
-set(BUILD_SHARED_LIBS OFF CACHE BOOL "Do not build a shared library for libdivsufsort")
-set(BUILD_EXAMPLES OFF CACHE BOOL "Do not build libdivsufsort example")
-set(BUILD_DIVSUFSORT64 ON CACHE BOOL "Build libdivsufsort in 64-bits mode")
-
-add_subdirectory(libdivsufsort)
-
 ## Add gtest 
 set(gtest_dir ${CMAKE_CURRENT_LIST_DIR}/googletest)
 set(gtest_file ${gtest_dir}/CMakeLists.txt)

include/sdsl/construct_sa.hpp

@@ -12,8 +12,7 @@
 #include "config.hpp"
 #include "int_vector.hpp"
 
-#include "divsufsort.h"
-#include "divsufsort64.h"
+#include "divsufsort.hpp"
 
 #include "qsufsort.hpp"
 
@@ -94,7 +93,7 @@ void calculate_sa(const unsigned char* c, typename t_int_vec::size_type len, t_i
 		if (32 == t_width or (0 == t_width and 32 >= sa_width)) {
 			sa.width(32);
 			sa.resize(len);
-			divsufsort(c, (int32_t*)sa.data(), len);
+			divsufsort(c, (int32_t*)sa.data(), (int32_t)len);
 			// copy integers back to the right positions
 			if (sa_width != 32) {
 				for (size_type i = 0, p = 0; i < len; ++i, p += sa_width) {
@@ -108,7 +107,7 @@ void calculate_sa(const unsigned char* c, typename t_int_vec::size_type len, t_i
 				throw std::logic_error("width of int_vector is to small for the text!!!");
 			}
 			int_vector<> sufarray(len, 0, 32);
-			divsufsort(c, (int32_t*)sufarray.data(), len);
+			divsufsort(c, (int32_t*)sufarray.data(), (int32_t)len);
 			sa.resize(len);
 			for (size_type i = 0; i < len; ++i) {
 				sa[i] = sufarray[i];