netdissect-stdinc: get rid of an extra definition of strdup.

We first unconditionally define it, and then later only define it if
it's already defined.  Microsoft defines it for us, but has deprecated
that definition because it pollutes the ISO C namespace with a POSIXism;
try just doing the conditional definition.

diff --git a/netdissect-stdinc.h b/netdissect-stdinc.h
index baf5dd8fd3a3c69cbc25d43d70734565ff0acb1e..adb0b4cbc5f859f421595c21716388b1446d881e 100644 (file)
--- a/netdissect-stdinc.h
+++ b/netdissect-stdinc.h
@@ -166,7 +166,6 @@
    */
   #define isatty _isatty
   #define stat _stat
-  #define strdup _strdup
   #define open _open
   #define read _read
   #define close _close