- document -dumpversion

- fixed a broken prototype

lib/libtcc1.c

@@ -162,7 +162,7 @@ static UDWtype __udivmoddi4 (UDWtype n, UDWtype d, UDWtype *rp)
   n0 = nn.s.low;
   n1 = nn.s.high;
 
-#if !UDIV_NEEDS_NORMALIZATION
+#if !defined(UDIV_NEEDS_NORMALIZATION)
   if (d1 == 0)
     {
       if (d0 > n1)

tcc-doc.texi

@@ -176,6 +176,9 @@ In a script, it gives the following header:
 #!/usr/local/bin/tcc -run -L/usr/X11R6/lib -lX11
 @end example
 
+@item -dumpversion
+Print only the compiler version and nothing else.
+
 @item -v
 Display TCC version.
 

tcc.h

@@ -1105,7 +1105,7 @@ ST_FUNC void next_nomacro(void);
 ST_FUNC void next(void);
 ST_INLN void unget_tok(int last_tok);
 ST_FUNC void preprocess_init(TCCState *s1);
-ST_FUNC void preprocess_new();
+ST_FUNC void preprocess_new(void);
 ST_FUNC int tcc_preprocess(TCCState *s1);
 ST_FUNC void skip(int c);
 ST_FUNC void expect(const char *msg);

tccpp.c

@@ -3042,7 +3042,7 @@ ST_FUNC void preprocess_init(TCCState *s1)
     s1->pack_stack_ptr = s1->pack_stack;
 }
 
-ST_FUNC void preprocess_new()
+ST_FUNC void preprocess_new(void)
 {
     int i, c;
     const char *p, *r;