[vte] lib: Use sysconf on macos to get the upper limit of number of FDs

[Christian Persch <chpe src gnome org>]

commit efebf38e278b80ef4670dad87d749898cf244f88
Author: Matt Rose <mattrose folkwolf net>
Date:   Mon Nov 16 20:38:04 2020 +0100

    lib: Use sysconf on macos to get the upper limit of number of FDs
    
    Fixes: https://gitlab.gnome.org/GNOME/vte/-/issues/296

 src/missing.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/missing.cc b/src/missing.cc
index dda355e8..e6da31e9 100644
--- a/src/missing.cc
+++ b/src/missing.cc
@@ -113,7 +113,7 @@ getrlimit_NOFILE_max(void)
 
 #endif /* HAVE_SYS_RESOURCE_H */
 
-#if defined(__FreeBSD__) || defined(__OpenBSD__)
+#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__APPLE__)
         /* Use sysconf() function provided by the system if it is known to be
          * async-signal safe.
          */