Merge pull request #122 from eseiler/infra/fixes

[INFRA] Small CMake fixes

.github/workflows/ci_asan.yml

@@ -54,7 +54,7 @@ jobs:
       - name: Install CMake
         uses: seqan/actions/setup-cmake@main
         with:
-          cmake: 3.12.4
+          cmake: 3.13.5
 
       - name: Configure tests
         run: |

.github/workflows/ci_header.yml

@@ -66,7 +66,7 @@ jobs:
       - name: Install CMake
         uses: seqan/actions/setup-cmake@main
         with:
-          cmake: 3.12.4
+          cmake: 3.13.5
 
       - name: Configure tests
         run: |

.github/workflows/ci_linux.yml

@@ -88,7 +88,7 @@ jobs:
       - name: Install CMake
         uses: seqan/actions/setup-cmake@main
         with:
-          cmake: 3.12.4
+          cmake: 3.13.5
 
       - name: Configure tests
         run: |

.github/workflows/ci_macos.yml

@@ -67,7 +67,7 @@ jobs:
       - name: Install CMake
         uses: seqan/actions/setup-cmake@main
         with:
-          cmake: 3.12.4
+          cmake: 3.13.5
 
       - name: Configure tests
         run: |

CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required (VERSION 3.2 FATAL_ERROR)
+cmake_minimum_required (VERSION 3.13 FATAL_ERROR)
 set (CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/CMakeModules")
 
 ## (1) Read and set library version

README.md

@@ -25,8 +25,10 @@ Tests are run with C++20 and C++23.
 
 As SDSL v3 is header-only, dependencies marked as `required` only apply to building tests/examples.
 
-* required: [CMake >= 3.2](https://github.com/Kitware/CMake)
-* required: [googletest 1.13.0](https://github.com/google/googletest/releases/tag/release-1.13.0)
-* optional: [cereal 1.3.2](https://github.com/USCiLab/cereal)
+GoogleTest and cereal are provided as submodules within this repository.
+
+* required: [CMake >= 3.13](https://github.com/Kitware/CMake)
+* required: [GoogleTest 1.14.0](https://github.com/google/googletest/releases/tag/v1.14.0)
+* optional: [cereal 1.3.2](https://github.com/USCiLab/cereal/releases/tag/v1.3.2)
 
 cereal can be activated by passing `-DSDSL_CEREAL=1` to CMake.

external/CMakeLists.txt

@@ -16,6 +16,14 @@ macro (add_gtest)
     list (APPEND SDSL_EXTERNAL_PROJECT_CMAKE_ARGS "-DCMAKE_INSTALL_PREFIX=${PROJECT_BINARY_DIR}")
     list (APPEND SDSL_EXTERNAL_PROJECT_CMAKE_ARGS "-DCMAKE_VERBOSE_MAKEFILE=${CMAKE_VERBOSE_MAKEFILE}")
 
+    if (NOT EXISTS "${CMAKE_CURRENT_LIST_DIR}/googletest/googletest/include/gtest/gtest.h")
+        message (STATUS "Checking out googletest submodule")
+        execute_process (
+            COMMAND git submodule update --init external/googletest
+            WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/..
+            OUTPUT_QUIET
+        )
+    endif ()
 
     set (gtest_project_args ${SDSL_EXTERNAL_PROJECT_CMAKE_ARGS})
     list (APPEND gtest_project_args "-DCMAKE_CXX_FLAGS=-w")
@@ -64,6 +72,7 @@ if (SDSL_CEREAL)
     set (cereal_dir ${CMAKE_CURRENT_LIST_DIR}/cereal/include/cereal)
     set (cereal_file ${cereal_dir}/cereal.hpp)
     if (NOT EXISTS ${cereal_file})
+        message (STATUS "  Checking out cereal submodule")
         execute_process (
             COMMAND git submodule update --init external/cereal
             WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/..

test/CMakeLists.txt

@@ -59,6 +59,13 @@ file (GLOB test_sources ${CMAKE_CURRENT_SOURCE_DIR}/*_test.cpp)
 include_directories (${sdsl_include_directory})
 include_directories (SYSTEM ${gtest_dir}/googletest/include)
 
+## Bogus warnings in GCC12
+if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU"
+    AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 12
+    AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 13)
+    add_compile_options (-Wno-restrict)
+endif ()
+
 link_libraries ("gtest_main" "gtest")
 
 if (SDSL_CEREAL)