Request X/Open 7 rather than declaring strdup ourselves.

[sort-networks.git] / src / sn-evolution.c

diff --git a/src/sn-evolution.c b/src/sn-evolution.c
index 71f0c67..8774f4a 100644 (file)
--- a/src/sn-evolution.c
+++ b/src/sn-evolution.c
@@ -23,7 +23,10 @@
 # define _ISOC99_SOURCE
 #endif
 #ifndef _POSIX_C_SOURCE
-# define _POSIX_C_SOURCE 200112L
+# define _POSIX_C_SOURCE 200809L
+#endif
+#ifndef _XOPEN_SOURCE
+# define _XOPEN_SOURCE 700
 #endif
 
 #include <stdlib.h>
@@ -50,10 +53,6 @@
 # define __attribute__(x) /**/
 #endif
 
-/* Yes, this is ugly, but the GNU libc doesn't export it with the above flags.
- * */
-char *strdup (const char *s);
-
 static uint64_t iteration_counter = 0;
 static int inputs_num = 16;
 static int inputs_num_is_power_of_two = 1;