Update vendor (whatsapp)

vendor/modernc.org/libc/pthread/pthread_darwin_amd64.go

@@ -642,6 +642,13 @@ var X__darwin_check_fd_set_overflow uintptr /* <builtin>:146:5: */
 // in between its arguments.  __CONCAT can also concatenate double-quoted
 // strings produced by the __STRING macro, but this only works with ANSI C.
 
+// In non-ANSI C environments, new programs will want ANSI-only C keywords
+// deleted from the program and old programs will want them left alone.
+// When using a compiler other than gcc, programs using the ANSI C keywords
+// const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS.
+// When using "gcc -traditional", we assume that this is the intent; if
+// __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone.
+
 // __unused denotes variables and functions that may not be used, preventing
 // the compiler from warning about it if not used.
 
@@ -1647,15 +1654,6 @@ type Sched_param = struct {
 
 // __IPHONE_NA is not defined to a value but is uses as a token by macros to indicate that the API is unavailable
 
-//  DO NOT EDIT THIS FILE.
-//
-//     It has been auto-edited by fixincludes from:
-//
-// 	"/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/AvailabilityInternal.h"
-//
-//     This had to be done to correct non-standard usages in the
-//     original, manufacturer supplied header file.
-
 // Copyright (c) 2007-2016 by Apple Inc.. All rights reserved.
 //
 // @APPLE_LICENSE_HEADER_START@