C++ Mathematical Expression Library (ExprTk) https://www.partow.net/programming/exprtk/index.html

CMakeLists.txt

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+#
+# ******************************************************************
+# *           C++ Mathematical Expression Toolkit Library          *
+# *                                                                *
+# * Author: Arash Partow (1999-2022)                               *
+# * URL: https://www.partow.net/programming/exprtk/index.html      *
+# *                                                                *
+# * Copyright notice:                                              *
+# * Free use of the C++ Mathematical Expression Toolkit Library is *
+# * permitted under the guidelines and in accordance with the most *
+# * current version of the MIT License.                            *
+# * https://www.opensource.org/licenses/MIT                        *
+# * SPDX-License-Identifier: MIT                                   *
+# *                                                                *
+# ******************************************************************
+#
+
+cmake_minimum_required(VERSION 3.15)
+
+project(
+   ExprTk
+   LANGUAGES CXX
+   VERSION 0.0.1
+   DESCRIPTION  "C++ Mathematical Expression Toolkit Library (ExprTk)"
+   HOMEPAGE_URL "https://www.partow.net/programming/exprtk/index.html"
+)
+
+# define ExprTk header-only library
+add_library(
+    exprtk
+    INTERFACE
+    ${CMAKE_CURRENT_SOURCE_DIR}/include/exprtk.hpp
+)
+
+add_library(exprtk::exprtk ALIAS exprtk)
+
+target_include_directories(
+    exprtk
+    INTERFACE
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
+    $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
+)
+
+target_compile_features(exprtk INTERFACE cxx_std_11)
+
+include(CMakePackageConfigHelpers)
+
+write_basic_package_version_file(
+    "ExprTkConfigVersion.cmake"
+    VERSION ${PROJECT_VERSION}
+    COMPATIBILITY AnyNewerVersion
+)