On MidnightBSD, the same test for weak symbols can be used as on FreeBSD.
2021-02-07 Bruno Haible <br...@clisp.org>
threadlib: Add support for MidnightBSD.
* m4/threadlib.m4 (gl_WEAK_SYMBOLS, gl_THREADLIB_BODY): On MidnightBSD,
use the same test as on FreeBSD.
diff --git a/m4/threadlib.m4 b/m4/threadlib.m4
index 20b383a..8fc3dfd 100644
--- a/m4/threadlib.m4
+++ b/m4/threadlib.m4
@@ -1,4 +1,4 @@
-# threadlib.m4 serial 29
+# threadlib.m4 serial 30
dnl Copyright (C) 2005-2021 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -126,7 +126,7 @@ int main ()
case "$gl_cv_have_weak" in
*yes)
case "$host_os" in
- freebsd* | dragonfly*)
+ freebsd* | dragonfly* | midnightbsd*)
: > conftest1.c
$CC $CPPFLAGS $CFLAGS $LDFLAGS -fPIC -shared -o libempty.so
conftest1.c -lpthread >&AS_MESSAGE_LOG_FD 2>&1
cat <<EOF > conftest2.c
@@ -488,7 +488,7 @@ AC_DEFUN([gl_THREADLIB_BODY],
LIBTHREAD= LTLIBTHREAD=
else
case "$host_os" in
- freebsd* | dragonfly*)
+ freebsd* | dragonfly* | midnightbsd*)
if test "x$LIBTHREAD" != "x$LIBMULTITHREAD"; then
dnl If weak symbols can't tell whether pthread_create(),
pthread_key_create()
dnl etc. will succeed, we need a runtime test.
