fix catch2 tag

README.md

@@ -1,4 +1,4 @@
-# kari.hpp [![Tweet](https://img.shields.io/twitter/url/http/shields.io.svg?style=social)](https://twitter.com/intent/tweet?text=Experimental%20library%20for%20currying%20in%20C%2B%2B17&url=https://github.com/BlackMATov/kari.hpp&via=BMEngine&hashtags=cpp,currying,cpp17,functionalprogramming)
+# kari.hpp
 
 > Experimental library for currying in C++17
 
@@ -9,9 +9,9 @@
 [![license][badge.license]][license]
 [![paypal][badge.paypal]][paypal]
 
-[badge.travis]: https://img.shields.io/travis/BlackMATov/kari.hpp/master.svg?logo=travis
-[badge.appveyor]: https://img.shields.io/appveyor/ci/BlackMATov/kari-hpp/master.svg?logo=appveyor
-[badge.codecov]: https://img.shields.io/codecov/c/github/BlackMATov/kari.hpp/master.svg?logo=codecov
+[badge.travis]: https://img.shields.io/travis/BlackMATov/kari.hpp/main.svg?logo=travis
+[badge.appveyor]: https://img.shields.io/appveyor/ci/BlackMATov/kari-hpp/main.svg?logo=appveyor
+[badge.codecov]: https://img.shields.io/codecov/c/github/BlackMATov/kari.hpp/main.svg?logo=codecov
 [badge.language]: https://img.shields.io/badge/language-C%2B%2B17-yellow.svg
 [badge.license]: https://img.shields.io/badge/license-MIT-blue.svg
 [badge.paypal]: https://img.shields.io/badge/donate-PayPal-orange.svg?logo=paypal&colorA=00457C
@@ -20,11 +20,17 @@
 [appveyor]: https://ci.appveyor.com/project/BlackMATov/kari-hpp
 [codecov]: https://codecov.io/gh/BlackMATov/kari.hpp
 [language]: https://en.wikipedia.org/wiki/C%2B%2B17
-[license]: https://github.com/BlackMATov/kari.hpp/blob/master/LICENSE.md
+[license]: https://en.wikipedia.org/wiki/MIT_License
 [paypal]: https://www.paypal.me/matov
 
 [kari]: https://github.com/BlackMATov/kari.hpp
 
+## Requirements
+
+- [gcc](https://www.gnu.org/software/gcc/) **>= 7**
+- [clang](https://clang.llvm.org/) **>= 5.0**
+- [msvc](https://visualstudio.microsoft.com/) **>= 2017**
+
 ## Installation
 
 [kari.hpp][kari] is a header-only library. All you need to do is copy the headers files from `headers` directory into your project and include them:

untests/CMakeLists.txt

@@ -3,18 +3,9 @@ cmake_minimum_required(VERSION 3.11 FATAL_ERROR)
 
 project(kari.hpp.untests)
 
-set(CATCH_BUILD_TESTING OFF CACHE BOOL "" FORCE)
-
-include(FetchContent)
-FetchContent_Declare(
-    catch2
-    GIT_REPOSITORY https://github.com/catchorg/catch2)
-
-FetchContent_GetProperties(catch2)
-if(NOT catch2_POPULATED)
-    FetchContent_Populate(catch2)
-    add_subdirectory(${catch2_SOURCE_DIR} ${catch2_BINARY_DIR})
-endif()
+#
+# coverage
+#
 
 option(BUILD_WITH_COVERAGE "Build with coverage" OFF)
 if(BUILD_WITH_COVERAGE AND (CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang"))
@@ -24,11 +15,14 @@ if(BUILD_WITH_COVERAGE AND (CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang"))
     set(CMAKE_LINKER_FLAGS_DEBUG "${CMAKE_LINKER_FLAGS_DEBUG} ${COVERAGE_FLAGS}")
 endif()
 
+#
+# executable
+#
+
 file(GLOB UNTESTS_SOURCES "*.cpp" "*.hpp")
 add_executable(${PROJECT_NAME} ${UNTESTS_SOURCES})
-target_link_libraries(${PROJECT_NAME}
-    Catch2
-    kari.hpp)
+target_link_libraries(${PROJECT_NAME} kari.hpp)
+
 target_compile_options(${PROJECT_NAME}
     PRIVATE
     $<$<CXX_COMPILER_ID:MSVC>:
@@ -36,4 +30,22 @@ target_compile_options(${PROJECT_NAME}
     PRIVATE
     $<$<OR:$<CXX_COMPILER_ID:GNU>,$<CXX_COMPILER_ID:Clang>,$<CXX_COMPILER_ID:AppleClang>>:
         -Wall -Wextra -Wpedantic>)
+
 add_test(${PROJECT_NAME} ${PROJECT_NAME})
+
+#
+# catchorg/catch2
+#
+
+include(FetchContent)
+FetchContent_Declare(
+    catchorg_catch2
+    GIT_REPOSITORY https://github.com/catchorg/catch2
+    GIT_TAG v2.13.2)
+
+FetchContent_GetProperties(catchorg_catch2)
+if(NOT catchorg_catch2_POPULATED)
+    FetchContent_Populate(catchorg_catch2)
+    target_include_directories(${PROJECT_NAME}
+        PRIVATE ${catchorg_catch2_SOURCE_DIR}/single_include)
+endif()