Conditionally include HDF5 parsers based on library availability. (#9)

Author: LTLA

CMakeLists.txt

@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.24)
 
 project(uzuki2
-    VERSION 1.1.0
+    VERSION 1.1.1
     DESCRIPTION "Storing simple R lists inside HDF5 or JSON"
     LANGUAGES CXX)
 

include/uzuki2/uzuki2.hpp

@@ -11,7 +11,9 @@
  * @brief Parse an R list from a HDF5 or JSON file.
  */
 
+#if __has_include("H5Cpp.h")
 #include "parse_hdf5.hpp"
+#endif
 #include "parse_json.hpp"
 
 #endif