Importing Egor's testsuite.

winsup/testsuite/winsup.api/sigchld.c

@@ -0,0 +1,20 @@
+#include <sys/types.h>
+#include <unistd.h>
+#include <signal.h>
+
+int no_signal_caught = 1;
+
+void handler ( int signo )
+{
+  no_signal_caught = 0;
+}
+
+main()
+{
+  pid_t pid;
+  signal ( SIGCHLD, handler );
+  pid = fork();
+  if ( pid == 0 ) exit ( 0 );
+  sleep ( 2 );
+  exit ( no_signal_caught );
+}