Merge pull request #218 from poacpm/bump/cmake-version

Bump cmake_minimum_required version from 3.11 to 3.13

CMakeLists.txt

@@ -7,7 +7,7 @@ FATAL: In-source builds are not allowed.
 ")
 endif ()
 
-cmake_minimum_required(VERSION 3.11)
+cmake_minimum_required(VERSION 3.13)
 project(poac VERSION 0.2.1 LANGUAGES CXX)
 option(poac_BUILD_TEST "Do not build tests by default" OFF) # -Dpoac_BUILD_TEST=ON
 
@@ -95,29 +95,18 @@ if (NOT ${Boost_FOUND})
 endif ()
 target_include_directories(${PROJECT_NAME} PRIVATE ${Boost_INCLUDE_DIRS})
 message(STATUS "Boost include directory is ... ${Boost_INCLUDE_DIRS}")
-if (${CMAKE_VERSION} VERSION_LESS 3.13)
-    link_directories(${Boost_LIBRARY_DIRS})
-else ()
-    target_link_directories(${PROJECT_NAME} PRIVATE ${Boost_LIBRARY_DIRS})
-endif()
+target_link_directories(${PROJECT_NAME} PRIVATE ${Boost_LIBRARY_DIRS})
 message(STATUS "Boost library directories are ... ${Boost_LIBRARY_DIRS}")
 # If boost version greater than 1.69.0 and cmake version less then 3.12, occur error.
 if (${Boost_VERSION} GREATER 106900)
-    if (${CMAKE_VERSION} VERSION_LESS 3.12)
-        message(FATAL_ERROR "If cmake version less than 3.12, CMake can't use Boost::libname style.")
-    endif ()
     set(BOOST_LIBS Boost::system)
 else ()
     set(BOOST_LIBS ${Boost_SYSTEM_LIBRARY})
 endif ()
 
 if (DEFINED GIT2_DIR)
     target_include_directories(${PROJECT_NAME} PRIVATE ${GIT2_DIR}/include)
-    if (${CMAKE_VERSION} VERSION_LESS 3.13)
-        link_directories(${GIT2_DIR}/lib)
-    else ()
-        target_link_directories(${PROJECT_NAME} PRIVATE ${GIT2_DIR}/lib)
-    endif()
+    target_link_directories(${PROJECT_NAME} PRIVATE ${GIT2_DIR}/lib)
 endif ()
 
 if (DEFINED TOML11_DIR)
@@ -130,11 +119,7 @@ endif ()
 
 if (DEFINED FMT_DIR)
     target_include_directories(${PROJECT_NAME} PRIVATE ${FMT_DIR}/include)
-    if (${CMAKE_VERSION} VERSION_LESS 3.13)
-        link_directories(${FMT_DIR}/lib)
-    else ()
-        target_link_directories(${PROJECT_NAME} PRIVATE ${FMT_DIR}/lib)
-    endif()
+    target_link_directories(${PROJECT_NAME} PRIVATE ${FMT_DIR}/lib)
 endif ()
 
 if (APPLE)

README.md

@@ -56,7 +56,7 @@ curl -fsSL https://sh.poac.pm | bash
 ### Manual install (Build)
 
 Poac requires the following tools and packages to build:
-* [`cmake`](https://github.com/Kitware/CMake): `3.11` or later
+* [`cmake`](https://github.com/Kitware/CMake): `3.13` or later
 * [`boost`](https://github.com/boostorg): `1.66.0` or later
 * [`openssl`](https://github.com/openssl/openssl): as new as possible
 * [`libgit2`](https://github.com/libgit2/libgit2): `0.27` or later