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--- src/gcalccmd.c.orig 2009-12-08 21:27:37.000000000 -0500
+++ src/gcalccmd.c  2010-01-24 13:38:19.000000000 -0500
@@ -18,16 +18,89 @@
  *  02111-1307, USA.
  */
 
+#include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/types.h>
+#include <sys/param.h>
 #include <time.h>
 
 #include "mp-equation.h"
 
 #define MAXLINE 1024
 
+#if __FreeBSD_version < 800067
+static ssize_t
+getline (char **lineptr, size_t *n, FILE *stream)
+{
+    char *line, *p;
+    long size, copy;
+
+    if (lineptr == NULL || n == NULL) {
+       errno = EINVAL;
+       return (ssize_t) -1;
+   }
+
+   if (ferror (stream))
+       return (ssize_t) -1;
+
+   /* Make sure we have a line buffer to start with.  */
+   if (*lineptr == NULL || *n < 2) /* !seen and no buf yet need 2 chars.  */ {
+#ifndef        MAX_CANON
+#define        MAX_CANON        256
+#endif
+       if (!*lineptr)
+           line = (char *) malloc (MAX_CANON);
+       else
+           line = (char *) realloc (*lineptr, MAX_CANON);
+       if (line == NULL)
+               return (ssize_t) -1;
+       *lineptr = line;
+       *n = MAX_CANON;
+   }
+
+   line = *lineptr;
+   size = *n;
+
+   copy = size;
+   p = line;
+
+   while (1) {
+       long len;
+
+       while (--copy > 0) {
+           int c = getc (stream);
+
+           if (c == EOF)
+               goto lose;
+           else if ((*p++ = c) == '\n')
+               goto win;
+       }
+
+       /* Need to enlarge the line buffer.  */
+       len = p - line;
+       size *= 2;
+       line = (char *) realloc (line, size);
+       if (line == NULL)
+           goto lose;
+       *lineptr = line;
+       *n = size;
+       p = line + len;
+       copy = size - len;
+   }
+
+lose:
+   if (p == *lineptr)
+       return (ssize_t) -1;
+
+   /* Return a partial line since we got an error in the middle.  */
+win:
+   *p = '\0';
+   return p - *lineptr;
+}
+#endif
+
 static void
 solve(const char *equation)
 {