$NetBSD: patch-meson.build,v 1.2 2022/04/05 15:51:58 jperkin Exp $

Remove silly asserts that do nothing except break portability.
NetBSD requires -D_NETBSD_SOURCE for grantpt().

--- meson.build.orig	2022-03-27 17:52:19.000000000 +0000
+++ meson.build
@@ -230,13 +230,6 @@ endforeach
 
 # Check for symbols
 
-check_symbols_required = [
-  ['TIOCGWINSZ', 'sys/ioctl.h'],
-]
-
-foreach symbol: check_symbols_required
-  assert(cxx.has_header_symbol(symbol[1], symbol[0]), symbol[0] + ' not found')
-endforeach
 
 # Check for functions
 
@@ -388,6 +381,7 @@ foreach func: check_functions
     args: [
       '-D_GNU_SOURCE',
       '-D_XOPEN_SOURCE',
+      '-D_NETBSD_SOURCE',
     ],
     dependencies: __deps,
     name: __name,
@@ -558,14 +552,10 @@ linker_flags = [
 foreach flag: linker_flags
   if cc.has_link_argument(flag[0])
     add_project_link_arguments(flag[0], language: 'c')
-  elif flag[1]
-    assert(false, flag[0] + ' is required but not supported')
   endif
 
   if cxx.has_link_argument(flag[0])
     add_project_link_arguments(flag[0], language: 'cpp')
-  elif flag[1]
-    assert(false, flag[0] + ' is required but not supported')
   endif
 endforeach