Const-ify.

src/findfile.c

@@ -44,8 +44,8 @@ geom.umn.edu; email: software@geom.umn.edu. */
 #include <stdlib.h>
 
 
-static char **dirlist = NULL;
-static void dirprefix(char *file, char *dir);
+static CONST char **dirlist = NULL;
+static void dirprefix(CONST char *file, char *dir);
 char *envexpand(char *s);
 
 /*-----------------------------------------------------------------------
@@ -60,14 +60,14 @@ char *envexpand(char *s);
  *		and expands all environment variables in them.
  */
 void
-filedirs(char *dirs[])
+filedirs(CONST char *dirs[])
 {
-  char buf[1024], **p;
+  char buf[1024];
   int i,ndirs;
-  char **odirlist = dirlist;
+  CONST char **odirlist = dirlist;
 
   for (ndirs=0; dirs[ndirs]!=NULL; ++ndirs);
-  dirlist = OOGLNewNE(char *,ndirs+1, "filedirs: dirlist");
+  dirlist = OOGLNewNE(CONST char *,ndirs+1, "filedirs: dirlist");
   for (i=0; i<ndirs; ++i) {
     strcpy(buf, dirs[i]);
     envexpand(buf);
@@ -75,6 +75,7 @@ filedirs(char *dirs[])
   }
   dirlist[ndirs] = NULL;
   if (odirlist) {
+    CONST char **p;
     for (p=odirlist; *p!=NULL; ++p) free(*p);
     OOGLFree(odirlist);
   }
@@ -87,7 +88,7 @@ filedirs(char *dirs[])
  * Author:	mbp
  * Date:	Wed Feb 12 14:09:48 1992
  */
-char **
+CONST char **
 getfiledirs()
 {
   return dirlist;
@@ -133,10 +134,10 @@ getfiledirs()
  *    permission.
  */
 char *
-findfile(char *superfile, char *file)
+findfile(CONST char *superfile, CONST char *file)
 {
   static char *path = NULL;
-  register char **dirp;
+  CONST char **dirp;
   char pbuf[1024];
   int trydot = 1;
 
@@ -190,7 +191,7 @@ findfile(char *superfile, char *file)
  *		otherwise dir is set to "".
  */
 static void
-dirprefix(char *path, char *dir)
+dirprefix(CONST char *path, char *dir)
 {
   register char *end;
 

src/findfile.h

@@ -13,9 +13,9 @@
 extern "C" {
 #endif
 
-extern char **getfiledirs(void);
-extern char *findfile( char *superfile, char *fname );
-extern void filedirs( char **dirs );
+extern CONST char **getfiledirs(void);
+extern char *findfile( CONST char *superfile, CONST char *fname );
+extern void filedirs( CONST char **dirs );
 
 extern char *envexpand(char *str);