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--- prcc.c.orig 1995-02-16 13:36:48.000000000 +0800
+++ prcc.c 2011-09-16 09:32:36.000000000 +0800
@@ -13,6 +13,7 @@ static char *version = "$Revision: 1.4 $
#include <string.h>
#include <stdlib.h>
#include <assert.h>
+#include <unistd.h>
typedef enum { FALSE=0, TRUE=1 } BOOLEAN;
@@ -66,7 +67,7 @@ static void usage(void)
exit(2);
}
-void main(int argc, char **argv)
+int main(int argc, char **argv)
{
extern int optind;
extern char *optarg;
@@ -552,7 +553,7 @@ static char *tag_stack[TAG_STACKSIZE];
static int tag_sp = 0;
/* pushes buffer onto tag stack */
-static tag_push(char *b)
+static int tag_push(char *b)
{
if (tag_sp < TAG_STACKSIZE
&& (tag_stack[tag_sp] = (char *) malloc(strlen(b) + 1)) != NULL) {
@@ -563,7 +564,7 @@ static tag_push(char *b)
}
/* pops value off tag stack to buffer */
-static tag_pop(char *b)
+static int tag_pop(char *b)
{
if (tag_sp) {
strcpy(b, tag_stack[--tag_sp]);
@@ -612,7 +613,7 @@ static tag_pop(char *b)
* NAME [a-z]+ (really any valid name that isn't reserved word) */
/* returns token of next item in input */
-static lex_gettoken(void)
+static int lex_gettoken(void)
{
static int expanded = 0; /* boolean: ARGSEND expanded? */
@@ -823,7 +824,7 @@ static int cpp_prevch; /* an ungotten c
static int cpp_refsok; /* boolean: can we echo characters out to "refs"? */
/* This function opens the file & resets variables */
-static cpp_open(char *name)
+static int cpp_open(char *name)
/* name of source file to be opened */
{
/* use the lower-level file_open function to open the file */
@@ -837,7 +838,7 @@ static cpp_open(char *name)
}
/* returns next nonwhite-space character */
-static cpp_nonwhite(void)
+static int cpp_nonwhite(void)
{
int ch;
int next;
@@ -865,7 +866,7 @@ static cpp_nonwhite(void)
/* This function returns the next character which isn't part of a directive */
-static cpp_getc(void)
+static int cpp_getc(void)
{
int ch; /* the next input character */
int i = 0;
@@ -992,7 +993,7 @@ static int file_getc(void)
}
/* This function ungets a character from the current source file */
-static file_ungetc(int ch)
+static int file_ungetc(int ch)
/* character to be ungotten */
{
return file_prevch = ch;
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