From c0faac17a6d8a97923d434dfd0fe44935a337774 Mon Sep 17 00:00:00 2001
From: LTLA <infinite.monkeys.with.keyboards@gmail.com>
Date: Fri, 9 Jul 2021 23:20:11 -0700
Subject: [PATCH 1/4] Updated the CMakeLists to simply use as a fetch'd
 library.

---
 CMakeLists.txt | 41 ++++++++++++++++++++---------------------
 1 file changed, 20 insertions(+), 21 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 31935e0e..ec91f568 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,28 +1,27 @@
-cmake_minimum_required (VERSION 2.6)
-project (hnsw_lib)
+cmake_minimum_required (VERSION 3.14)
+project(hnsw_lib
+    LANGUAGES CXX)
 
-include_directories("${PROJECT_BINARY_DIR}")
+add_library(hnswlib INTERFACE)
+target_include_directories(hnswlib INTERFACE .) 
 
+if(CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
+    set(CMAKE_CXX_STANDARD 11)
 
+    if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
+      SET( CMAKE_CXX_FLAGS  "-Ofast -DNDEBUG -std=c++11 -DHAVE_CXX0X -openmp -march=native -fpic -ftree-vectorize")
+    elseif (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
+      SET( CMAKE_CXX_FLAGS  "-Ofast -lrt -DNDEBUG -std=c++11 -DHAVE_CXX0X -march=native -fpic -w -fopenmp -ftree-vectorize -ftree-vectorizer-verbose=0" )
+    elseif (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
+      SET( CMAKE_CXX_FLAGS  "-Ofast -lrt -DNDEBUG -std=c++11 -DHAVE_CXX0X -openmp -march=native -fpic -w -fopenmp -ftree-vectorize" )
+    endif()
 
-set(SOURCE_EXE main.cpp)           
+    add_executable(test_updates examples/updates_test.cpp)
+    target_link_libraries(test_updates hnswlib)
 
-set(SOURCE_LIB sift_1b.cpp)
+    add_executable(searchKnnCloserFirst_test examples/searchKnnCloserFirst_test.cpp)
+    target_link_libraries(searchKnnCloserFirst_test hnswlib)
 
-add_library(sift_test STATIC ${SOURCE_LIB})
-
-
-add_executable(main ${SOURCE_EXE})
-if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
-  SET( CMAKE_CXX_FLAGS  "-Ofast -DNDEBUG -std=c++11 -DHAVE_CXX0X -openmp -march=native -fpic -ftree-vectorize")
-elseif (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
-SET( CMAKE_CXX_FLAGS  "-Ofast -lrt -DNDEBUG -std=c++11 -DHAVE_CXX0X -openmp -march=native -fpic -w -fopenmp -ftree-vectorize -ftree-vectorizer-verbose=0" )
-elseif (CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
-  SET( CMAKE_CXX_FLAGS  "-Ofast -lrt -DNDEBUG -std=c++11 -DHAVE_CXX0X -openmp -march=native -fpic -w -fopenmp -ftree-vectorize" )
+    add_executable(main main.cpp sift_1b.cpp)
+    target_link_libraries(main hnswlib)
 endif()
-
-add_executable(test_updates examples/updates_test.cpp)
-
-add_executable(searchKnnCloserFirst_test examples/searchKnnCloserFirst_test.cpp)
-
-target_link_libraries(main sift_test) 

From 085b16503161d8c204f753240f96629ca6184054 Mon Sep 17 00:00:00 2001
From: LTLA <infinite.monkeys.with.keyboards@gmail.com>
Date: Sat, 10 Jul 2021 00:26:36 -0700
Subject: [PATCH 2/4] Added the missing header.

---
 hnswlib/visited_list_pool.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hnswlib/visited_list_pool.h b/hnswlib/visited_list_pool.h
index 6b0f4458..5e1a4a58 100644
--- a/hnswlib/visited_list_pool.h
+++ b/hnswlib/visited_list_pool.h
@@ -2,6 +2,7 @@
 
 #include <mutex>
 #include <string.h>
+#include <deque>
 
 namespace hnswlib {
     typedef unsigned short int vl_type;

From c41ee3bf1f56d326354e0b60f4d859ffa45416d0 Mon Sep 17 00:00:00 2001
From: LTLA <infinite.monkeys.with.keyboards@gmail.com>
Date: Sat, 10 Jul 2021 00:29:20 -0700
Subject: [PATCH 3/4] Made the data getter const.

---
 hnswlib/hnswalg.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hnswlib/hnswalg.h b/hnswlib/hnswalg.h
index f23c17d9..2bd2eb5e 100644
--- a/hnswlib/hnswalg.h
+++ b/hnswlib/hnswalg.h
@@ -744,7 +744,7 @@ namespace hnswlib {
         }
 
         template<typename data_t>
-        std::vector<data_t> getDataByLabel(labeltype label)
+        std::vector<data_t> getDataByLabel(labeltype label) const
         {
             tableint label_c;
             auto search = label_lookup_.find(label);

From d6c8e3a3896129a7f642bc23cdce4536e8b45a65 Mon Sep 17 00:00:00 2001
From: LTLA <infinite.monkeys.with.keyboards@gmail.com>
Date: Wed, 15 Sep 2021 23:05:10 -0700
Subject: [PATCH 4/4] Lowered minimum CMake version back to 2.6.

---
 CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index ec91f568..e2f3d716 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required (VERSION 3.14)
+cmake_minimum_required (VERSION 2.6)
 project(hnsw_lib
     LANGUAGES CXX)