From 3c9fd966f9697b1316746cca7d733e60c87a3da7 Mon Sep 17 00:00:00 2001
From: myd7349 <myd7349@gmail.com>
Date: Mon, 28 Nov 2022 21:23:26 +0800
Subject: [PATCH] simplify

---
 CMakeLists.txt | 64 +++++++++++++++++++-------------------------------
 1 file changed, 24 insertions(+), 40 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index ea389b4..8d63c8a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,23 +1,15 @@
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
 
-if(DEFINED PROJECT_NAME)
-    set(KCP_IS_TOP_PROJECT OFF)
-else()
-    set(KCP_IS_TOP_PROJECT ON)
-endif()
-
 project(kcp LANGUAGES C)
 
+include(CTest)
+include(GNUInstallDirs)
+
 cmake_policy(SET CMP0054 NEW)
 
-option(KCP_BUILD_SHARED_LIBS "Build KCP as a shared lib" OFF)
-option(KCP_BUILD_INSTALL "Build install target" ${KCP_IS_TOP_PROJECT})
-option(KCP_BUILD_TESTS "Build tests" ${KCP_IS_TOP_PROJECT})
-
-if(KCP_BUILD_SHARED_LIBS)
-    if(WIN32)
-        set(exports_def_file "${CMAKE_CURRENT_BINARY_DIR}/exports.def")
-        set(exports_def_contents
+if(BUILD_SHARED_LIBS AND WIN32)
+    set(exports_def_file "${CMAKE_CURRENT_BINARY_DIR}/exports.def")
+    set(exports_def_contents
 "EXPORTS 
     ikcp_create
     ikcp_release
@@ -38,39 +30,31 @@ if(KCP_BUILD_SHARED_LIBS)
     ikcp_getconv
 ")
 
-        file(WRITE "${exports_def_file}" "${exports_def_contents}")
-        add_library(kcp SHARED ikcp.h ikcp.c "${exports_def_file}")
-    else()
-        add_library(kcp SHARED ikcp.h ikcp.c)
-    endif()
+    file(WRITE "${exports_def_file}" "${exports_def_contents}")
+    add_library(kcp ikcp.c "${exports_def_file}")
 else()
-    add_library(kcp STATIC ikcp.h ikcp.c)
+    add_library(kcp ikcp.c)
 endif()
 
-if(KCP_BUILD_INSTALL)
-    include(GNUInstallDirs)
+install(FILES ikcp.h DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")
 
-    set_target_properties(kcp PROPERTIES PUBLIC_HEADER ikcp.h)
+install(TARGETS kcp
+    EXPORT kcp-targets
+    ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+    LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+    RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
+    INCLUDES DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
+)
 
-    install(TARGETS kcp
-        EXPORT kcp-targets
-        PUBLIC_HEADER DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
-        ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-        LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
-        RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
-        INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
-    )
+install(EXPORT kcp-targets
+    FILE kcp-config.cmake
+    NAMESPACE kcp::
+    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/kcp
+)
 
-    install(EXPORT kcp-targets
-        FILE kcp-config.cmake
-        NAMESPACE kcp::
-        DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/kcp
-    )
-endif()
-
-if(KCP_BUILD_TESTS)
+if(BUILD_TESTING)
     enable_language(CXX)
-    
+
     add_executable(kcp_test test.cpp)
     if(MSVC AND NOT (MSVC_VERSION LESS 1900))
         target_compile_options(kcp_test PRIVATE /utf-8)