Fix build - remove extern's and fix tok_new decl

Author: lysnikolaou

Parser/lexer/lexer.h

@@ -5,6 +5,6 @@
 
 int update_fstring_expr(struct tok_state *tok, char cur);
 
-extern int _PyTokenizer_Get(struct tok_state *, struct token *);
+int _PyTokenizer_Get(struct tok_state *, struct token *);
 
 #endif

Parser/lexer/state.h

@@ -132,10 +132,10 @@ int type_comment_token_setup(struct tok_state *tok, struct token *token, int typ
                          int end_col_offset, const char *start, const char *end);
 int token_setup(struct tok_state *tok, struct token *token, int type, const char *start, const char *end);
 
-extern struct tok_state *tok_new();
-extern void _PyTokenizer_Free(struct tok_state *);
-extern void _PyToken_Free(struct token *);
-extern void _PyToken_Init(struct token *);
+struct tok_state *tok_new(void);
+void _PyTokenizer_Free(struct tok_state *);
+void _PyToken_Free(struct token *);
+void _PyToken_Init(struct token *);
 
 
 #endif

Parser/tokenizer/tokenizer.h

@@ -3,10 +3,10 @@
 
 #include "Python.h"
 
-extern struct tok_state *_PyTokenizer_FromString(const char *, int, int);
-extern struct tok_state *_PyTokenizer_FromUTF8(const char *, int, int);
-extern struct tok_state *_PyTokenizer_FromReadline(PyObject*, const char*, int, int);
-extern struct tok_state *_PyTokenizer_FromFile(FILE *, const char*,
+struct tok_state *_PyTokenizer_FromString(const char *, int, int);
+struct tok_state *_PyTokenizer_FromUTF8(const char *, int, int);
+struct tok_state *_PyTokenizer_FromReadline(PyObject*, const char*, int, int);
+struct tok_state *_PyTokenizer_FromFile(FILE *, const char*,
                                               const char *, const char *);
 
 #define tok_dump _Py_tok_dump