Drop support for SunOS 4 and Solaris releases older than 2.5 (1995)

Includes changing remaining sun ifdef's to check for standard-conformant /
non-namespace-polluting #ifdef __sun instead of older #ifdef sun.

Signed-off-by: Alan Coopersmith <alan.coopersmith@sun.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/Xthreads.h b/Xthreads.h
index 7381815..3d44208 100644
--- a/Xthreads.h
+++ b/Xthreads.h
@@ -77,7 +77,7 @@ extern xthread_t (*_x11_thr_self)();
 #   define xthread_yield() thr_yield()
 #   define xthread_exit(v) thr_exit(v)
 #   define xthread_key_create(kp,d) thr_keycreate(kp,d)
-#   ifdef sun
+#   ifdef __sun
 #    define xthread_key_delete(k) 0
 #   else
 #    define xthread_key_delete(k) thr_keydelete(k)