Add base.h

test/cuda-test/cpp14.cc

@@ -1,4 +1,4 @@
-#include <fmt/core.h>
+#include <fmt/base.h>
 
 // The purpose of this part is to ensure NVCC's host compiler also supports
 // the standard version. See 'cuda-cpp14.cu'.

test/cuda-test/cuda-cpp14.cu

@@ -10,7 +10,7 @@
 // https://en.cppreference.com/w/cpp/preprocessor/replace#Predefined_macros
 static_assert(__cplusplus >= 201402L, "expect C++ 2014 for nvcc");
 
-#include <fmt/core.h>
+#include <fmt/base.h>
 
 #include <cuda.h>
 #include <iostream>