* signal.c: need to include unistd.h for write(2).

  unistd.h is now included via ruby/defines.h, but should implicitly
  include here.  (suggested by kosaki)


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40743 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 0 deletions

diff --git a/signal.c b/signal.c
index 7b58840d28..47c096b24c 100644
--- a/signal.c
+++ b/signal.c
@@ -19,6 +19,9 @@
 #include "ruby_atomic.h"
 #include "eval_intern.h"
 #include "internal.h"
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
 
 #if defined(__native_client__) && defined(NACL_NEWLIB)
 # include "nacl/signal.h"