clang 5 minimum

.github/workflows/ci.yml

@@ -21,7 +21,6 @@ jobs:
           ubuntu-18.04-gcc-9,
           ubuntu-20.04-gcc-10,
           ubuntu-20.04-gcc-11,
-          ubuntu-18.04-clang-4.0,
           ubuntu-18.04-clang-5.0,
           ubuntu-18.04-clang-6.0,
           ubuntu-18.04-clang-7,
@@ -67,11 +66,6 @@ jobs:
             compiler: gcc
             version: "11"
 
-          - name: ubuntu-18.04-clang-4.0
-            os: ubuntu-18.04
-            compiler: clang
-            version: "4.0"
-
           - name: ubuntu-18.04-clang-5.0
             os: ubuntu-18.04
             compiler: clang

CMakeLists.txt

@@ -76,7 +76,6 @@ if(BUILD_TESTING AND INJA_BUILD_TESTS)
   enable_testing()
 
   add_executable(inja_test test/test.cpp)
-  target_compile_features(inja_test INTERFACE cxx_std_17)
   target_link_libraries(inja_test PRIVATE inja)
   add_test(inja_test ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/inja_test)
 
@@ -92,7 +91,6 @@ if(BUILD_TESTING AND INJA_BUILD_TESTS)
   target_include_directories(single_inja INTERFACE single_include include third_party/include)
 
   add_executable(single_inja_test test/test.cpp)
-  target_compile_features(single_inja_test INTERFACE cxx_std_17)
   target_link_libraries(single_inja_test PRIVATE single_inja)
 
   add_test(single_inja_test ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/single_inja_test)
@@ -101,7 +99,6 @@ endif()
 
 if(BUILD_BENCHMARK)
   add_executable(inja_benchmark test/benchmark.cpp)
-  target_compile_features(inja_benchmark INTERFACE cxx_std_17)
   target_link_libraries(inja_benchmark PRIVATE inja)
 
   if(MSVC)

README.md

@@ -385,7 +385,7 @@ Inja uses exceptions to handle ill-formed template input. However, exceptions ca
 Inja uses the `string_view` feature of the C++17 STL. Currently, the following compilers are tested:
 
 - GCC 7 - 11 (and possibly later)
-- Clang 4 - 12 (and possibly later)
+- Clang 5 - 12 (and possibly later)
 - Microsoft Visual C++ 2017 15.0 - 2022 (and possibly later)
 
 A list of supported compiler / os versions can be found in the [CI definition](https://github.com/pantor/inja/blob/master/.github/workflows/ci.yml).