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-rw-r--r--usr.bin/m4/main.c19
1 files changed, 9 insertions, 10 deletions
diff --git a/usr.bin/m4/main.c b/usr.bin/m4/main.c
index 34020e9..87fc0d3 100644
--- a/usr.bin/m4/main.c
+++ b/usr.bin/m4/main.c
@@ -80,14 +80,13 @@ int maxout;
FILE *active; /* active output file pointer */
int ilevel = 0; /* input file stack pointer */
int oindex = 0; /* diversion index.. */
-char *null = ""; /* as it says.. just a null.. */
-char *m4wraps = ""; /* m4wrap string default.. */
+const char *null = ""; /* as it says.. just a null.. */
+const char *m4wraps = ""; /* m4wrap string default.. */
char lquote[MAXCCHARS+1] = {LQUOTE}; /* left quote character (`) */
char rquote[MAXCCHARS+1] = {RQUOTE}; /* right quote character (') */
char scommt[MAXCCHARS+1] = {SCOMMT}; /* start character for comment */
char ecommt[MAXCCHARS+1] = {ECOMMT}; /* end character for comment */
int synccpp; /* Line synchronisation for C preprocessor */
-int chscratch; /* Scratch space for gpbc() macro */
struct keyblk keywrds[] = { /* m4 keywords to be installed */
{ "include", INCLTYPE },
@@ -476,14 +475,14 @@ macro()
default:
if (LOOK_AHEAD(t, scommt)) {
- char *p;
- for (p = scommt; *p; p++)
- chrsave(*p);
+ char *pc;
+ for (pc = scommt; *pc; pc++)
+ chrsave(*pc);
for(;;) {
t = gpbc();
if (LOOK_AHEAD(t, ecommt)) {
- for (p = ecommt; *p; p++)
- chrsave(*p);
+ for (pc = ecommt; *pc; pc++)
+ chrsave(*pc);
break;
}
if (t == EOF)
@@ -574,7 +573,7 @@ initkwds()
p->nxtptr = hashtab[h % HASHSIZE];
hashtab[h % HASHSIZE] = p;
p->name = xstrdup(keywrds[i].knam);
- p->defn = null;
+ p->defn = xstrdup(null);
p->hv = h;
p->type = keywrds[i].ktyp & TYPEMASK;
if ((keywrds[i].ktyp & NOARGS) == 0)
@@ -595,7 +594,7 @@ builtin_type(key)
return -1;
}
-char *
+const char *
builtin_realname(n)
int n;
{
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