Fix building with GLIBC 2.10+ as reported in http://bugs.gentoo.org/273764

diff -ur cdtool-2.1.8.orig/cdown.c cdtool-2.1.8/cdown.c
--- cdtool-2.1.8.orig/cdown.c	2005-10-17 22:11:59.000000000 +0300
+++ cdtool-2.1.8/cdown.c	2009-06-19 20:15:57.000000000 +0300
@@ -325,7 +325,7 @@
 }
 
 /************************************************************************/
-/* Procedure:  getline
+/* Procedure:  get_line
  * Purpose:    read a line of text from the CDDB server
  * 
  * Inputs:     
@@ -333,14 +333,14 @@
  * Returns:    The line of text
  * Notes:  
  *   1. The CDDB databases use \r\n to end lines.  All lines returned
- *      by getline() have the \r and \n stripped.
+ *      by get_line() have the \r and \n stripped.
  *   2. Non-reentrant: the memory buffer returned previously is
  *      recycled
  *   3. Do NOT modify the contents of the returned buffer past the
  *      NULL - data from the network is stored there
  */
 /************************************************************************/
-char *getline(void) {
+char *get_line(void) {
   static char *buffer = NULL;
   static char *lastline = NULL;
   static int buffered = 0;
@@ -451,7 +451,7 @@
   char *cdtitle;
 
   netprintf(sock, "cddb read %s %s\n", categ, discid);
-  message = getline();
+  message = get_line();
   switch (atoi(message)) {
     case 401: fprintf(stderr, "error: entry not found\n"); return;
     case 402: fprintf(stderr, "error: server error\n"); return;
@@ -461,13 +461,13 @@
     default: fprintf(stderr, "error: bad message: %s\n", message); return;
   }
   while (iRawMode) {	/* infinite loop, or skip if !iRawMode */
-    message = getline();
+    message = get_line();
     if (!strcmp (message, "."))
       return;
     printf ("%s\r\n", message);
   }
   do {
-    message = getline();
+    message = get_line();
     firstword = strchr(message, '=');
     if (firstword != NULL) {
       *firstword = '\0';
@@ -511,7 +511,7 @@
   int input = 0;
   int exact = 1;
 
-  message = getline();
+  message = get_line();
   switch (atoi(message)) {
     case 403: fprintf(stderr, "error: database entry is corrupt\n"); return;
     case 409: fprintf(stderr, "error: no handshake\n"); return;
@@ -523,7 +523,7 @@
   if (!exact) {
     fprintf(stderr, "CD has no exact match\n 0: None\n");
     do {
-      message = getline();
+      message = get_line();
       if (strcmp(message, ".") != 0) {
         matches = realloc(matches, sizeof(char*) * (++count));
         fprintf(stderr, " %d: ", count); printcd(message);
@@ -628,15 +628,15 @@
 void parsesites(void) {
   char *buffer;
 
-  buffer = getline();
+  buffer = get_line();
   switch (atoi(buffer)) {
     case 210: break;		/* OK */
     case 401: fprintf(stderr, "error: no site list available\n"); return;
   }
-  buffer = getline();
+  buffer = get_line();
   do {
     printf("%s\n", buffer);
-  } while (strcmp(buffer = getline(), ".") != 0);
+  } while (strcmp(buffer = get_line(), ".") != 0);
 }
 
 /************************************************************************/
@@ -755,7 +755,7 @@
       exit(3);
   }
 
-  bleh = getline();
+  bleh = get_line();
   if (!signon(bleh)) { 
       errormsg("%s:  signon error on host %s", progname, pszHost);
       close(sock); 
@@ -773,7 +773,7 @@
     getuname(), gethname(), progname, VERSIONSTRING);
   
   /* get welcome message */
-  bleh = getline();
+  bleh = get_line();
   if (!welcome(bleh)) { 
       errormsg("%s: bad welcome message [%s]", progname, bleh);
       close(sock);