We are requring C11; this time globally.

Author: FrancescAlted

CMakeLists.txt

@@ -1,5 +1,9 @@
 cmake_minimum_required(VERSION 3.15.0)
 
+set(CMAKE_C_STANDARD 11)
+set(CMAKE_C_STANDARD_REQUIRED ON)
+set(CMAKE_C_EXTENSIONS OFF)
+
 if(WIN32)
     if(CMAKE_GENERATOR MATCHES "Visual Studio")
         if(NOT DEFINED CMAKE_GENERATOR_TOOLSET)
@@ -51,8 +55,6 @@ target_link_libraries(blosc2_ext PRIVATE Python::NumPy)
 
 # Add include directory for miniexpr.h and others
 target_include_directories(blosc2_ext PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/src/blosc2")
-# Enforce a C standard that bundled deps rely on (e.g. OpenZL requires C11).
-target_compile_features(blosc2_ext PRIVATE c_std_11)
 if(WIN32 AND CMAKE_C_COMPILER_ID STREQUAL "Clang")
     execute_process(
         COMMAND "${CMAKE_C_COMPILER}" -print-resource-dir