--- papilo-2.2.0/CMakeLists.txt.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/CMakeLists.txt	2024-02-19 15:44:49.655384730 -0700
@@ -187,27 +187,9 @@ else()
 endif()
 
 if(LUSOL)
-   include(CheckLanguage)
-   check_language(Fortran)
-   find_package(BLAS)
-endif()
-if(CMAKE_Fortran_COMPILER AND BLAS_FOUND)
-   enable_language(Fortran)
-
-   add_library(clusol STATIC
-      src/papilo/external/lusol/src/lusol6b.f
-      src/papilo/external/lusol/src/lusol7b.f
-      src/papilo/external/lusol/src/lusol8b.f
-      src/papilo/external/lusol/src/lusol_util.f
-      src/papilo/external/lusol/src/lusol.f90
-      src/papilo/external/lusol/src/clusol.c
-      src/papilo/external/lusol/src/lusol_precision.f90)
-   set_property(TARGET clusol PROPERTY POSITION_INDEPENDENT_CODE ON)
-   target_include_directories(clusol PRIVATE src/papilo/external/lusol)
-   target_link_libraries(clusol ${BLAS_LIBRARIES})
    target_link_libraries(papilo INTERFACE clusol)
    set(PAPILO_HAVE_LUSOL 1)
-   set(CLUSOL_TARGET clusol)
+   set(CLUSOL_TARGET "")
 else()
    set(PAPILO_HAVE_LUSOL 0)
    set(CLUSOL_TARGET "")
@@ -228,17 +210,7 @@ if(NOT MSVC)
       endif()
    endif()
 endif()
-set(CMAKE_REQUIRED_INCLUDES ${PROJECT_SOURCE_DIR}/src/papilo/external)
-check_cxx_source_compiles(
-   "#include \"ska/bytell_hash_map.hpp\"
-   int main() { ska::bytell_hash_map<int,int> hashmap; (void)hashmap; return 0; }"
-   PAPILO_BYTELL_HASHMAP_WORKS )
-
-if( PAPILO_BYTELL_HASHMAP_WORKS )
-   set(PAPILO_USE_STANDARD_HASHMAP 0)
-else()
-   set(PAPILO_USE_STANDARD_HASHMAP 1)
-endif()
+set(PAPILO_USE_STANDARD_HASHMAP 1)
 
 add_library(papilo-core STATIC
    src/papilo/core/VariableDomains.cpp
@@ -442,20 +414,6 @@ install(FILES
      ${PROJECT_SOURCE_DIR}/src/papilo/external/fmt/posix.cc
  DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/papilo/external/fmt)
 
-install(FILES
-     ${PROJECT_SOURCE_DIR}/src/papilo/external/pdqsort/pdqsort.h
-  DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/papilo/external/pdqsort)
-
-install(FILES
-     ${PROJECT_SOURCE_DIR}/src/papilo/external/ska/bytell_hash_map.hpp
-     ${PROJECT_SOURCE_DIR}/src/papilo/external/ska/flat_hash_map.hpp
-     ${PROJECT_SOURCE_DIR}/src/papilo/external/ska/unordered_map.hpp
-  DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/papilo/external/ska)
-
-install(FILES
-     ${PROJECT_SOURCE_DIR}/src/papilo/external/lusol/clusol.h
-  DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/papilo/external/lusol)
-
 # configure the config file for the build tree
 set(QUADMATH_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake/Modules)
 set(TBB_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake/Modules)
--- papilo-2.2.0/src/convMPS.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/src/convMPS.cpp	2024-02-19 15:44:49.655384730 -0700
@@ -36,7 +36,7 @@
 #ifdef PAPILO_TBB
 #include "papilo/misc/tbb.hpp"
 #endif
-#include "papilo/external/pdqsort/pdqsort.h"
+#include <pdqsort.h>
 #include "tbb/concurrent_unordered_set.h"
 #include <algorithm>
 
--- papilo-2.2.0/src/duplicates.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/src/duplicates.cpp	2024-02-19 15:44:49.655384730 -0700
@@ -30,7 +30,7 @@
 #ifdef PAPILO_TBB
 #include "papilo/misc/tbb.hpp"
 #endif
-#include "papilo/external/pdqsort/pdqsort.h"
+#include <pdqsort.h>
 #include <algorithm>
 #include <sys/stat.h>
 
--- papilo-2.2.0/src/papilo/core/Components.hpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/src/papilo/core/Components.hpp	2024-02-19 15:44:49.656384717 -0700
@@ -26,7 +26,7 @@
 #include "papilo/core/Problem.hpp"
 #include "papilo/misc/Hash.hpp"
 #include "papilo/misc/Vec.hpp"
-#include "papilo/external/pdqsort/pdqsort.h"
+#include <pdqsort.h>
 #include <boost/pending/disjoint_sets.hpp>
 
 namespace papilo
--- papilo-2.2.0/src/papilo/core/SparseStorage.hpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/src/papilo/core/SparseStorage.hpp	2024-02-19 15:44:49.656384717 -0700
@@ -25,7 +25,7 @@
 
 #include "papilo/misc/MultiPrecision.hpp"
 #include "papilo/misc/Vec.hpp"
-#include "papilo/external/pdqsort/pdqsort.h"
+#include <pdqsort.h>
 #include <algorithm>
 #include <cassert>
 #include <cstdint>
--- papilo-2.2.0/src/papilo/io/MpsParser.hpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/src/papilo/io/MpsParser.hpp	2024-02-19 15:46:22.446183829 -0700
@@ -29,7 +29,7 @@
 #include "papilo/core/Objective.hpp"
 #include "papilo/core/Problem.hpp"
 #include "papilo/core/VariableDomains.hpp"
-#include "papilo/external/pdqsort/pdqsort.h"
+#include <pdqsort.h>
 #include "papilo/io/BoundType.hpp"
 #include "papilo/io/ParseKey.hpp"
 #include "papilo/misc/Flags.hpp"
--- papilo-2.2.0/src/papilo/io/OpbParser.hpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/src/papilo/io/OpbParser.hpp	2024-02-19 15:58:12.866987139 -0700
@@ -28,7 +28,7 @@
 #include "papilo/core/Objective.hpp"
 #include "papilo/core/Problem.hpp"
 #include "papilo/core/VariableDomains.hpp"
-#include "papilo/external/pdqsort/pdqsort.h"
+#include <pdqsort.h>
 #include "papilo/io/BoundType.hpp"
 #include "papilo/io/ParseKey.hpp"
 #include "papilo/misc/Flags.hpp"
--- papilo-2.2.0/src/papilo/misc/DependentRows.hpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/src/papilo/misc/DependentRows.hpp	2024-02-19 15:44:49.656384717 -0700
@@ -28,7 +28,7 @@
 #ifdef PAPILO_HAVE_LUSOL
 extern "C"
 {
-#include "papilo/external/lusol/clusol.h"
+#include <clusol.h>
 }
 #endif
 
--- papilo-2.2.0/src/papilo/presolvers/FreeVarSubstitution.hpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/src/papilo/presolvers/FreeVarSubstitution.hpp	2024-02-19 15:44:49.657384704 -0700
@@ -28,7 +28,7 @@
 #include "papilo/core/ProblemUpdate.hpp"
 #include "papilo/misc/Num.hpp"
 #include "papilo/misc/fmt.hpp"
-#include "papilo/external/pdqsort/pdqsort.h"
+#include <pdqsort.h>
 #include <boost/dynamic_bitset.hpp>
 
 namespace papilo
--- papilo-2.2.0/src/papilo/presolvers/ParallelColDetection.hpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/src/papilo/presolvers/ParallelColDetection.hpp	2024-02-19 15:44:49.657384704 -0700
@@ -30,7 +30,7 @@
 #ifdef PAPILO_TBB
 #include "papilo/misc/tbb.hpp"
 #endif
-#include "papilo/external/pdqsort/pdqsort.h"
+#include <pdqsort.h>
 
 namespace papilo
 {
--- papilo-2.2.0/src/papilo/presolvers/ParallelRowDetection.hpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/src/papilo/presolvers/ParallelRowDetection.hpp	2024-02-19 15:44:49.657384704 -0700
@@ -30,7 +30,7 @@
 #ifdef PAPILO_TBB
 #include "papilo/misc/tbb.hpp"
 #endif
-#include "papilo/external/pdqsort/pdqsort.h"
+#include <pdqsort.h>
 
 namespace papilo
 {
--- papilo-2.2.0/src/papilo/presolvers/SimplifyInequalities.hpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/src/papilo/presolvers/SimplifyInequalities.hpp	2024-02-19 15:44:49.657384704 -0700
@@ -26,7 +26,7 @@
 #include "papilo/core/PresolveMethod.hpp"
 #include "papilo/core/Problem.hpp"
 #include "papilo/core/ProblemUpdate.hpp"
-#include "papilo/external/pdqsort/pdqsort.h"
+#include <pdqsort.h>
 #include <boost/integer/common_factor.hpp>
 
 namespace papilo
--- papilo-2.2.0/test/CMakeLists.txt.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/CMakeLists.txt	2024-02-19 15:44:49.657384704 -0700
@@ -59,7 +59,7 @@ add_executable(unit_test TestMain.cpp
         ${BOOST_REQUIRED_TEST_FILES}
         ${PAPILOLIB_TEST_FILE})
 
-target_link_libraries(unit_test papilo ${PAPILOLIB_TARGET} ${Boost_LIBRARIES})
+target_link_libraries(unit_test papilo ${PAPILOLIB_TARGET} ${Boost_LIBRARIES} Catch2 Catch2Main)
 if(${CMAKE_SYSTEM_NAME} STREQUAL "Android")
     target_link_libraries(unit_test log)
 endif()
--- papilo-2.2.0/test/papilo/core/MatrixBufferTest.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/papilo/core/MatrixBufferTest.cpp	2024-02-19 15:44:49.657384704 -0700
@@ -21,7 +21,7 @@
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 #include "papilo/core/MatrixBuffer.hpp"
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 #include "papilo/misc/fmt.hpp"
 
 using namespace papilo;
--- papilo-2.2.0/test/papilo/core/PostsolveTest.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/papilo/core/PostsolveTest.cpp	2024-02-19 15:44:49.658384691 -0700
@@ -21,7 +21,7 @@
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 #include "papilo/core/postsolve/Postsolve.hpp"
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 #include "papilo/core/postsolve/PostsolveStatus.hpp"
 #include <boost/archive/binary_iarchive.hpp>
 
--- papilo-2.2.0/test/papilo/core/PresolveTest.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/papilo/core/PresolveTest.cpp	2024-02-19 15:44:49.658384691 -0700
@@ -21,7 +21,7 @@
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 #include "papilo/core/Presolve.hpp"
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 #include "papilo/core/Problem.hpp"
 #include "papilo/core/ProblemBuilder.hpp"
 #include "papilo/core/Reductions.hpp"
--- papilo-2.2.0/test/papilo/core/ProblemUpdateTest.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/papilo/core/ProblemUpdateTest.cpp	2024-02-19 15:44:49.658384691 -0700
@@ -20,7 +20,7 @@
 /*                                                                           */
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 #include "papilo/core/Problem.hpp"
 #include "papilo/core/ProblemBuilder.hpp"
 #include "papilo/core/Reductions.hpp"
--- papilo-2.2.0/test/papilo/core/SparseStorageTest.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/papilo/core/SparseStorageTest.cpp	2024-02-19 15:44:49.658384691 -0700
@@ -21,7 +21,7 @@
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 #include "papilo/core/SparseStorage.hpp"
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 #include "papilo/misc/compress_vector.hpp"
 
 papilo::SparseStorage<double>
--- papilo-2.2.0/test/papilo/io/MpsParserTest.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/papilo/io/MpsParserTest.cpp	2024-02-19 15:44:49.658384691 -0700
@@ -22,7 +22,7 @@
 
 #include <memory>
 #include "papilo/io/MpsParser.hpp"
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 #include "papilo/core/PresolveMethod.hpp"
 #include "papilo/core/Problem.hpp"
 
--- papilo-2.2.0/test/PapiloLib.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/PapiloLib.cpp	2024-02-19 15:44:49.658384691 -0700
@@ -21,7 +21,7 @@
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 #include "papilolib.h"
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 #include "papilo/misc/fmt.hpp"
 
 TEST_CASE( "papilolib", "[C-API]" )
--- papilo-2.2.0/test/papilo/misc/VectorUtilsTest.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/papilo/misc/VectorUtilsTest.cpp	2024-02-19 15:44:49.659384678 -0700
@@ -21,7 +21,7 @@
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 #include "papilo/misc/VectorUtils.hpp"
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 
 using namespace papilo;
 
--- papilo-2.2.0/test/papilo/presolve/CoefficientStrengtheningTest.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/papilo/presolve/CoefficientStrengtheningTest.cpp	2024-02-19 15:44:49.659384678 -0700
@@ -20,7 +20,7 @@
 /*                                                                           */
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 #include "papilo/core/PresolveMethod.hpp"
 #include "papilo/core/Problem.hpp"
 #include "papilo/core/ProblemBuilder.hpp"
--- papilo-2.2.0/test/papilo/presolve/ConstraintPropagationTest.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/papilo/presolve/ConstraintPropagationTest.cpp	2024-02-19 15:44:49.659384678 -0700
@@ -21,7 +21,7 @@
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 #include "papilo/presolvers/ConstraintPropagation.hpp"
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 #include "papilo/core/PresolveMethod.hpp"
 #include "papilo/core/Problem.hpp"
 #include "papilo/core/ProblemBuilder.hpp"
--- papilo-2.2.0/test/papilo/presolve/DominatedColsTest.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/papilo/presolve/DominatedColsTest.cpp	2024-02-19 15:44:49.659384678 -0700
@@ -21,7 +21,7 @@
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 #include "papilo/presolvers/DominatedCols.hpp"
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 #include "papilo/core/PresolveMethod.hpp"
 #include "papilo/core/Problem.hpp"
 #include "papilo/core/ProblemBuilder.hpp"
--- papilo-2.2.0/test/papilo/presolve/DualFixTest.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/papilo/presolve/DualFixTest.cpp	2024-02-19 15:44:49.659384678 -0700
@@ -21,7 +21,7 @@
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 #include "papilo/presolvers/DualFix.hpp"
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 #include "papilo/core/PresolveMethod.hpp"
 #include "papilo/core/Problem.hpp"
 #include "papilo/core/ProblemBuilder.hpp"
--- papilo-2.2.0/test/papilo/presolve/FixContinuousTest.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/papilo/presolve/FixContinuousTest.cpp	2024-02-19 15:44:49.659384678 -0700
@@ -20,7 +20,7 @@
 /*                                                                           */
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 #include "papilo/core/PresolveMethod.hpp"
 #include "papilo/core/Problem.hpp"
 #include "papilo/core/ProblemBuilder.hpp"
--- papilo-2.2.0/test/papilo/presolve/FreeVarSubstitutionTest.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/papilo/presolve/FreeVarSubstitutionTest.cpp	2024-02-19 15:44:49.660384665 -0700
@@ -21,7 +21,7 @@
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 #include "papilo/presolvers/FreeVarSubstitution.hpp"
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 #include "papilo/core/PresolveMethod.hpp"
 #include "papilo/core/Problem.hpp"
 #include "papilo/core/ProblemBuilder.hpp"
--- papilo-2.2.0/test/papilo/presolve/ImplIntDetectionTest.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/papilo/presolve/ImplIntDetectionTest.cpp	2024-02-19 15:44:49.660384665 -0700
@@ -20,7 +20,7 @@
 /*                                                                           */
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 #include "papilo/core/PresolveMethod.hpp"
 #include "papilo/core/Problem.hpp"
 #include "papilo/core/ProblemBuilder.hpp"
--- papilo-2.2.0/test/papilo/presolve/ParallelColDetectionTest.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/papilo/presolve/ParallelColDetectionTest.cpp	2024-02-19 15:44:49.660384665 -0700
@@ -21,7 +21,7 @@
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 #include "papilo/presolvers/ParallelColDetection.hpp"
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 #include "papilo/core/PresolveMethod.hpp"
 #include "papilo/core/Problem.hpp"
 #include "papilo/core/ProblemBuilder.hpp"
--- papilo-2.2.0/test/papilo/presolve/ParallelRowDetectionTest.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/papilo/presolve/ParallelRowDetectionTest.cpp	2024-02-19 15:44:49.660384665 -0700
@@ -21,7 +21,7 @@
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 #include "papilo/presolvers/ParallelRowDetection.hpp"
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 #include "papilo/core/PresolveMethod.hpp"
 #include "papilo/core/Problem.hpp"
 #include "papilo/core/ProblemBuilder.hpp"
--- papilo-2.2.0/test/papilo/presolve/ProbingTest.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/papilo/presolve/ProbingTest.cpp	2024-02-19 15:44:49.660384665 -0700
@@ -21,7 +21,7 @@
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 #include "papilo/presolvers/Probing.hpp"
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 #include "papilo/core/PresolveMethod.hpp"
 #include "papilo/core/Problem.hpp"
 #include "papilo/core/ProblemBuilder.hpp"
--- papilo-2.2.0/test/papilo/presolve/SimpleProbingTest.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/papilo/presolve/SimpleProbingTest.cpp	2024-02-19 15:44:49.660384665 -0700
@@ -21,7 +21,7 @@
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 #include "papilo/presolvers/SimpleProbing.hpp"
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 #include "papilo/core/PresolveMethod.hpp"
 #include "papilo/core/Problem.hpp"
 #include "papilo/core/ProblemBuilder.hpp"
--- papilo-2.2.0/test/papilo/presolve/SimpleSubstitutionTest.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/papilo/presolve/SimpleSubstitutionTest.cpp	2024-02-19 15:44:49.661384652 -0700
@@ -21,7 +21,7 @@
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 #include "papilo/presolvers/SimpleSubstitution.hpp"
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 #include "papilo/core/PresolveMethod.hpp"
 #include "papilo/core/Problem.hpp"
 #include "papilo/core/ProblemBuilder.hpp"
--- papilo-2.2.0/test/papilo/presolve/SimplifyInequalitiesTest.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/papilo/presolve/SimplifyInequalitiesTest.cpp	2024-02-19 15:44:49.661384652 -0700
@@ -21,7 +21,7 @@
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 #include "papilo/presolvers/SimplifyInequalities.hpp"
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 #include "papilo/core/PresolveMethod.hpp"
 #include "papilo/core/Problem.hpp"
 #include "papilo/core/ProblemBuilder.hpp"
--- papilo-2.2.0/test/papilo/presolve/SingletonColsTest.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/papilo/presolve/SingletonColsTest.cpp	2024-02-19 15:44:49.661384652 -0700
@@ -21,7 +21,7 @@
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 #include "papilo/presolvers/SingletonCols.hpp"
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 #include "papilo/core/PresolveMethod.hpp"
 #include "papilo/core/Problem.hpp"
 #include "papilo/core/ProblemBuilder.hpp"
--- papilo-2.2.0/test/papilo/presolve/SingletonStuffingTest.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/papilo/presolve/SingletonStuffingTest.cpp	2024-02-19 15:44:49.661384652 -0700
@@ -21,7 +21,7 @@
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 #include "papilo/presolvers/SingletonStuffing.hpp"
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 #include "papilo/core/PresolveMethod.hpp"
 #include "papilo/core/Problem.hpp"
 #include "papilo/core/ProblemBuilder.hpp"
--- papilo-2.2.0/test/papilo/presolve/SparsifyTest.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/papilo/presolve/SparsifyTest.cpp	2024-02-19 15:44:49.661384652 -0700
@@ -21,7 +21,7 @@
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 #include "papilo/presolvers/Sparsify.hpp"
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>
 #include "papilo/core/PresolveMethod.hpp"
 #include "papilo/core/Problem.hpp"
 #include "papilo/core/ProblemBuilder.hpp"
--- papilo-2.2.0/test/TestMain.cpp.orig	2024-02-08 04:11:10.000000000 -0700
+++ papilo-2.2.0/test/TestMain.cpp	2024-02-19 15:44:49.662384639 -0700
@@ -22,4 +22,4 @@
 
 #define CATCH_CONFIG_MAIN
 
-#include "papilo/external/catch/catch.hpp"
+#include <catch2/catch_all.hpp>