diff --git a/configure.ac b/configure.ac
index ac3b5fc7..45aab65a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -97,9 +97,11 @@ AC_SUBST(LIBTOOL_DEPS)
 
 AC_PROG_INSTALL
 
-dnl GNU libtool checks them by default/unconditionally, but slibtool does not.
-dnl So accept the ugly double check and -DHAVE_*_H arguments with GNU libtool.
-AC_CHECK_HEADERS(stdint.h inttypes.h stdlib.h)
+dnl GNU libtool checks stdint.h inttypes.h stdlib.h by default/unconditionally,
+dnl but slibtool does not. So accept the ugly double check and -DHAVE_*_H
+dnl arguments with GNU libtool.
+dnl select.h seems to be ubiquitous, but was not used in libisoburn before 2025
+AC_CHECK_HEADERS(stdint.h inttypes.h stdlib.h sys/select.h)
 
 dnl Check for tm_gmtoff field in struct tm
 AC_CHECK_MEMBER([struct tm.tm_gmtoff],
diff --git a/xorriso/configure_ac.txt b/xorriso/configure_ac.txt
index 02ed8648..12267dab 100644
--- a/xorriso/configure_ac.txt
+++ b/xorriso/configure_ac.txt
@@ -84,9 +84,10 @@ dnl LIBTOOL="$LIBTOOL --silent"
 
 AC_PROG_INSTALL
 
-dnl GNU libtool checks them by default/unconditionally, but slibtool does not.
-dnl So accept the ugly double check and -DHAVE_*_H arguments with GNU libtool.
-AC_CHECK_HEADERS(stdint.h inttypes.h stdlib.h)
+dnl GNU libtool checks stdint.h inttypes.h stdlib.h by default/unconditionally, dnl but slibtool does not. So accept the ugly double check and -DHAVE_*_H 
+dnl arguments with GNU libtool.
+dnl select.h seems to be ubiquitous, but was not used in libisoburn before 2025
+AC_CHECK_HEADERS(stdint.h inttypes.h stdlib.h sys/select.h)
 
 AC_CHECK_MEMBER([struct tm.tm_gmtoff],
 	[AC_DEFINE(HAVE_TM_GMTOFF, 1,
diff --git a/xorriso/misc_funct.c b/xorriso/misc_funct.c
index 075858b7..96ce53c6 100644
--- a/xorriso/misc_funct.c
+++ b/xorriso/misc_funct.c
@@ -1,7 +1,7 @@
 
 /* xorriso - creates, loads, manipulates and burns ISO 9660 filesystem images.
 
-   Copyright 2007-2024 Thomas Schmitt, <scdbackup@gmx.net>
+   Copyright 2007-2025 Thomas Schmitt, <scdbackup@gmx.net>
 
    Provided under GPL version 2 or later.
 
@@ -23,6 +23,9 @@
 #include <time.h>
 #include <sys/utsname.h>
 
+#ifdef HAVE_SYS_SELECT_H
+#include <sys/select.h>
+#endif
 
 #include "sfile.h"
 #include "misc_funct.h"
diff --git a/xorriso/parse_exec.c b/xorriso/parse_exec.c
index 78e3f97e..bb6fccfb 100644
--- a/xorriso/parse_exec.c
+++ b/xorriso/parse_exec.c
@@ -1,7 +1,7 @@
 
 /* xorriso - creates, loads, manipulates and burns ISO 9660 filesystem images.
 
-   Copyright 2007-2024 Thomas Schmitt, <scdbackup@gmx.net>
+   Copyright 2007-2025 Thomas Schmitt, <scdbackup@gmx.net>
 
    Provided under GPL version 2 or later.
 
@@ -3079,7 +3079,7 @@ int Xorriso_execv(struct XorrisO *xorriso, char *cmd,
 
  Xorriso_alloc_meM(prog, char, 5 * SfileadrL);
 
- wait3(NULL,WNOHANG,NULL); /* just to remove any old dead child */
+ waitpid(-1, NULL, WNOHANG); /* just to remove any old dead child */
 
  if(flag & 2) {
    ret= Xorriso_make_argv_with_null(xorriso, in_argc, in_argv,
diff --git a/xorriso/xorriso_timestamp.h b/xorriso/xorriso_timestamp.h
index 6fc62d79..8b238c8c 100644
--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2025.04.07.074817"
+#define Xorriso_timestamP "2025.04.08.211135"