Check for constants used by waitid function

* configure.ac (AC_CHECK_DECLS): Add P_* constants.

diff --git a/configure.ac b/configure.ac
index 066444abdc6eda285a7b4ae2dc031d876872a885..ab5066fdbb25fb0ab9ebab685029ae0344972183 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -292,6 +292,18 @@ AC_CHECK_DECLS(m4_normalize([
        PTRACE_SETOPTIONS
 ]),,, [#include <sys/ptrace.h>])
 
+AC_CHECK_DECLS(m4_normalize([
+       P_PID,
+       P_PPID,
+       P_PGID,
+       P_SID,
+       P_CID,
+       P_UID,
+       P_GID,
+       P_ALL,
+       P_LWPID
+]),,, [#include <sys/wait.h>])
+
 AC_CHECK_DECLS(m4_normalize([
        LO_FLAGS_READ_ONLY,
        LO_FLAGS_AUTOCLEAR,