File configure.diff of Package links

--- links-2.7.orig/configure.in
+++ links-2.7/configure.in
@@ -16,9 +16,11 @@ image_formats="GIF PNG XBM"
 AM_CONFIG_HEADER(config.h)
 
 dnl Checks for programs.
-AC_PROG_CC
+AC_PROG_CC_STDC
+AC_USE_SYSTEM_EXTENSIONS
+AC_SYS_LARGEFILE
 
-#AC_PROG_CXX
+AC_PROG_CXX
 #AC_PROG_AWK
 #AM_PROG_LEX
 #AC_PROG_YACC