Workaround bug in Intel-C.cmake.

See:
https://gitlab.kitware.com/cmake/cmake/issues/18166
https://gitlab.kitware.com/cmake/cmake/commit/735e69f4458850cc335710af36d1382b891cbb5e

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3aab3e4..7fc7248 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -39,6 +39,10 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_C_STANDARD 11)
 set(CMAKE_C_STANDARD_REQUIRED ON)
 
 set(CMAKE_C_STANDARD 11)
 set(CMAKE_C_STANDARD_REQUIRED ON)
 

+if (CMAKE_C_COMPILER_ID STREQUAL "Intel" AND CMAKE_C11_EXTENSION_COMPILE_OPTION STREQUAL "-std=c11")
+  set(CMAKE_C11_EXTENSION_COMPILE_OPTION "-std=gnu11")
+endif()
+

 ### Check threading support
 set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
 find_package(Threads)
 ### Check threading support
 set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
 find_package(Threads)