update flex and GCC text in INSTALL.txt

diff --git a/INSTALL.txt b/INSTALL.txt
index ad78746058446f1f31fe4ab7eeb688e890b10e96..7bbbf0cb8e1c0ce2e22c83207ca83b5dd38b2b92 100644 (file)
--- a/INSTALL.txt
+++ b/INSTALL.txt
@@ -29,19 +29,14 @@ where the configure scripts fails to detect it.
 
 You will need an ANSI C compiler to build libpcap. The configure script
 will abort if your compiler is not ANSI compliant. If this happens, use
-the GNU C compiler, available via anonymous ftp:
-
-       ftp://ftp.gnu.org/pub/gnu/gcc/
+the generally available GNU C compiler (GCC).
 
 If you use flex, you must use version 2.4.6 or higher. The configure
 script automatically detects the version of flex and will not use it
 unless it is new enough. You can use "flex -V" to see what version you
 have (unless it's really old). The current version of flex is available
-via anonymous ftp:
-
-       ftp://ftp.ee.lbl.gov/flex-*.tar.Z
-
-As of this writing, the current version is 2.5.4.
+at flex.sourceforge.net and often comes packaged by means of the OS.
+As of this writing, the current version is 2.5.37.
 
 If you use bison, you must use flex (and visa versa). The configure
 script automatically falls back to lex and yacc if both flex and bison