--- /dev/null
+# SPDX-FileCopyrightText: 2020 Michael Jeanson <mjeanson@efficios.com>
+#
+# SPDX-License-Identifier: GPL-2.0-or-later WITH LicenseRef-Autoconf-exception-macro
+#
+# SYNOPSIS
+#
+# AE_PTHREAD_SETNAME_NP
+#
+
+#serial 2
+
+AC_DEFUN([AE_PTHREAD_SETNAME_NP], [
+AC_REQUIRE([AX_PTHREAD])
+AC_LANG_PUSH([C])
+
+ae_pthread_setname_np_save_LDFLAGS="$LDFLAGS"
+ae_pthread_setname_np_save_LIBS="$LIBS"
+LDFLAGS="$LDFLAGS $PTHREAD_CFLAGS"
+LIBS="$LIBS $PTHREAD_LIBS"
+
+# GLIBC >= 2.12, Solaris >= 11.3, FreeBSD >= 12.2
+AC_MSG_CHECKING(for pthread_setname_np(pthread_t, const char*))
+AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <pthread.h>
+ #ifdef __FreeBSD__
+ #include <pthread_np.h>
+ #endif]],
+ [pthread_setname_np(pthread_self(), "example")])],
+ [AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_PTHREAD_SETNAME_NP_WITH_TID,1,
+ [Have function pthread_setname_np(pthread_t, const char*)])],
+ [AC_MSG_RESULT(no)])
+
+# MacOS X >= 10.6, iOS >= 3.2
+AC_MSG_CHECKING(for pthread_setname_np(const char*))
+AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <pthread.h>
+ #ifdef __FreeBSD__
+ #include <pthread_np.h>
+ #endif]],
+ [pthread_setname_np("example")])],
+ [AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_PTHREAD_SETNAME_NP_WITHOUT_TID,1,
+ [Have function pthread_setname_np(const char*)])],
+ [AC_MSG_RESULT(no)])
+
+# FreeBSD
+AC_MSG_CHECKING(for pthread_set_name_np(pthread_t, const char*))
+AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <pthread.h>
+ #ifdef __FreeBSD__
+ #include <pthread_np.h>
+ #endif]],
+ [pthread_set_name_np(pthread_self(), "example")])],
+ [AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_PTHREAD_SET_NAME_NP_WITH_TID,1,
+ [Have function pthread_set_name_np(pthread_t, const char*)])],
+ [AC_MSG_RESULT(no)])
+
+LDFLAGS=$ae_pthread_setname_np_save_LDFLAGS
+LIBS=$ae_pthread_setname_np_save_LIBS
+
+AC_LANG_POP
+])dnl AE_PTHREAD_SETNAME_NP