Update build system and enable VCPKG

Migrates to CMake presets and enables VCPKG to manage dependencies.
Removes explicit submodule configuration.
Updates benchmark and googletest to be integrated or linked properly.
The goal is to ease the build process and reduce complexity related to linking and dependency management.

.github/workflows/cmake-multi-platform.yml

@@ -40,7 +40,7 @@ jobs:
           git clone --depth 1 https://github.com/microsoft/vcpkg "$VCPKG_ROOT"
       - name: Configure (cmake --preset)
         shell: bash
-        run: cmake --preset linux-release -DOMATH_BUILD_TESTS=ON -DOMATH_BUILD_BENCHMARK=OFF -DOMATH_BUILD_VIA_VCPKG=ON
+        run: cmake --preset linux-release -DOMATH_BUILD_TESTS=ON -DOMATH_BUILD_BENCHMARK=OFF -DOMATH_BUILD_VIA_VCPKG=ON -DVCPKG_MANIFEST_FEATURES="imgui;avx2;tests"
 
       - name: Build
         shell: bash
@@ -75,7 +75,7 @@ jobs:
 
       - name: Configure (cmake --preset)
         shell: bash
-        run: cmake --preset windows-release -DOMATH_BUILD_TESTS=ON -DOMATH_BUILD_BENCHMARK=OFF -DOMATH_BUILD_VIA_VCPKG=ON
+        run: cmake --preset windows-release -DOMATH_BUILD_TESTS=ON -DOMATH_BUILD_BENCHMARK=OFF -DOMATH_BUILD_VIA_VCPKG=ON -DVCPKG_MANIFEST_FEATURES="imgui;avx2;tests"
 
       - name: Build
         shell: bash

.gitmodules

@@ -1,6 +0,0 @@
-[submodule "extlibs/googletest"]
-	path = extlibs/googletest
-	url = https://github.com/google/googletest.git
-[submodule "extlibs/benchmark"]
-	path = extlibs/benchmark
-	url = https://github.com/google/benchmark.git

CMakeLists.txt

@@ -21,9 +21,9 @@ option(OMATH_BUILD_EXAMPLES "Build example projects with you can learn & play" O
 option(OMATH_STATIC_MSVC_RUNTIME_LIBRARY "Force Omath to link static runtime" OFF)
 option(OMATH_SUPRESS_SAFETY_CHECKS "Supress some safety checks in release build to improve general performance" ON)
 option(OMATH_USE_UNITY_BUILD "Will enable unity build to speed up compilation" OFF)
-option(OMATH_ENABLE_LEGACY "Will enable legacy classes that MUST be used ONLY for backward compatibility" OFF)
+option(OMATH_ENABLE_LEGACY "Will enable legacy classes that MUST be used ONLY for backward compatibility" ON)
 
-option(OMATH_BUILD_VIA_VCPKG "Will enable building using vcpkg, vcpkg will override some options that were set in vcpkg.json file, and search for dependencies using vcpkg" OFF)
+option(OMATH_BUILD_VIA_VCPKG "Will enable building using vcpkg, vcpkg will override some options that were set in vcpkg.json file, and search for dependencies using vcpkg" ON)
 
 if (OMATH_BUILD_VIA_VCPKG AND NOT CMAKE_TOOLCHAIN_FILE)
     message(FATAL_ERROR "[${PROJECT_NAME}] CMAKE_TOOLCHAIN_FILE IS EMPTY! Please set env variable called 'VCPKG_ROOT' to vcpkg root folder here is an example: 'C:/vcpkg' or '/home/user/vcpkg' ")
@@ -107,7 +107,7 @@ if (OMATH_SUPRESS_SAFETY_CHECKS)
 endif ()
 
 if (OMATH_ENABLE_LEGACY)
-    target_compile_options(${PROJECT_NAME} PUBLIC OMATH_ENABLE_LEGACY)
+    target_compile_definitions(${PROJECT_NAME} PUBLIC OMATH_ENABLE_LEGACY)
 endif ()
 
 set_target_properties(${PROJECT_NAME} PROPERTIES
@@ -140,9 +140,6 @@ endif ()
 
 target_compile_features(${PROJECT_NAME} PUBLIC cxx_std_23)
 
-add_subdirectory(extlibs)
-
-
 if (OMATH_BUILD_TESTS)
     add_subdirectory(tests)
     target_compile_definitions(${PROJECT_NAME} PUBLIC OMATH_BUILD_TESTS)

CMakePresets.json

@@ -10,7 +10,6 @@
       "cacheVariables": {
         "CMAKE_CXX_COMPILER": "cl.exe",
         "CMAKE_TOOLCHAIN_FILE": "$env{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake",
-        "VCPKG_MANIFEST_FEATURES": "imgui;avx2;tests",
         "VCPKG_INSTALLED_DIR": "${sourceDir}/cmake-build/vcpkg_installed",
         "CMAKE_MAKE_PROGRAM": "Ninja"
       },
@@ -45,7 +44,6 @@
       "cacheVariables": {
         "CMAKE_CXX_COMPILER": "clang++",
         "CMAKE_TOOLCHAIN_FILE": "$env{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake",
-        "VCPKG_MANIFEST_FEATURES": "imgui;avx2;tests",
         "VCPKG_INSTALLED_DIR": "${sourceDir}/cmake-build/vcpkg_installed",
         "CMAKE_MAKE_PROGRAM": "Ninja"
       },

benchmark/CMakeLists.txt

@@ -11,5 +11,9 @@ set_target_properties(${PROJECT_NAME} PROPERTIES
         CXX_STANDARD 23
         CXX_STANDARD_REQUIRED ON)
 
-
+if (TARGET benchmark::benchmark)
-target_link_libraries(${PROJECT_NAME} PRIVATE benchmark::benchmark omath)
+    target_link_libraries(${PROJECT_NAME} PRIVATE benchmark::benchmark omath)
+else()
+    find_package(benchmark CONFIG REQUIRED)
+    target_link_libraries(${PROJECT_NAME} PRIVATE benchmark::benchmark omath)
+endif ()

extlibs/CMakeLists.txt

@@ -1,9 +0,0 @@
-
-if (OMATH_BUILD_TESTS)
-    add_subdirectory(googletest)
-endif ()
-
-if (OMATH_BUILD_BENCHMARK)
-    set(BENCHMARK_ENABLE_TESTING OFF)
-    add_subdirectory(benchmark)
-endif ()

tests/CMakeLists.txt

@@ -15,5 +15,11 @@ set_target_properties(${PROJECT_NAME} PROPERTIES
         CXX_STANDARD_REQUIRED ON)
 
 
-target_link_libraries(${PROJECT_NAME} PRIVATE gtest gtest_main omath::omath)
+
+if (NOT OMATH_BUILD_VIA_VCPKG)
+    target_link_libraries(${PROJECT_NAME} PRIVATE gtest gtest_main omath::omath)
+else()
+    find_package(GTest CONFIG REQUIRED)
+    target_link_libraries(${PROJECT_NAME} PRIVATE GTest::gtest GTest::gtest_main omath::omath)
+endif()
 gtest_discover_tests(${PROJECT_NAME})