add missing header files to glfft

glfft/glfft_gl_interface.hpp

@@ -30,6 +30,8 @@ extern "C" {
     #include <stdlib.h>
     #include <string.h>
     #include <error.h>
+    #include <stdio.h>
+    #include <errno.h>
 }
 
 #ifndef GLFFT_GLSL_LANG_STRING

glfft/glfft_wisdom.cpp

@@ -20,6 +20,7 @@
 #include "glfft_interface.hpp"
 #include "glfft.hpp"
 #include <utility>
+#include <stdexcept>
 
 /* GLAVA NOTICE: automatic wisdom serialization support may be added at a late date */
 #ifdef GLFFT_SERIALIZATION