[Bug-tar] paxutils/tests/genfile.c port to Solaris 8

[Paul Eggert]

I installed this minor change to port genfile.c to Solaris 8.

2005-06-21  Paul Eggert  <address@hidden>

        * tests/genfile.c: Port to Solaris 8.
        Include <signal.h>, for 'signal'.
        (SIGCHLD) [! defined SIGCHLD && defined SIGCLD]: Define.
        (child_exited, sig_child): Remove; not needed.
        (exec_command): Use a prototype.
        (main): Set SIGCHLD handler to default, not to sig_child.
        And do this only if SIGCHLD is defined.  This uses the
        same pattern that src/tar.c uses.

--- genfile.c.~1.7.~    2005-05-14 23:34:49 -0700
+++ genfile.c   2005-06-21 10:36:53 -0700
@@ -23,6 +23,7 @@
 */
 
 #include <system.h>
+#include <signal.h>
 #include <stdarg.h>
 #include <argmatch.h>
 #include <argp.h>
@@ -35,6 +36,10 @@
 # define EXIT_FAILURE 1
 #endif
 
+#if ! defined SIGCHLD && defined SIGCLD
+# define SIGCHLD SIGCLD
+#endif
+
 #if HAVE_UTIME_H
 # include <utime.h>
 #else
@@ -575,18 +580,10 @@ process_checkpoint (size_t n)
     }
 }
 
-static int child_exited = 0;
-
-RETSIGTYPE
-sig_child (int sig)
-{
-  child_exited = 1;
-}
-
 #define CHECKPOINT_TEXT "Write checkpoint"
 
 void
-exec_command ()
+exec_command (void)
 {
   int i, status;
   pid_t pid;
@@ -603,7 +600,10 @@ exec_command ()
   memmove (exec_argv+2, exec_argv+1, (exec_argc-1)*sizeof (*exec_argv));
   exec_argv[1] = "--checkpoint";
 
-  signal (SIGCHLD, sig_child);
+#ifdef SIGCHLD
+  /* System V fork+wait does not work if SIGCHLD is ignored.  */
+  signal (SIGCHLD, SIG_DFL);
+#endif
   
   pipe (fd);